android 实用代码片段整理
2015-03-09 14:54
239 查看
android 常用代码片段，前1-10条是从网上摘录，向原作者致谢。后面为自己整理。
1、设置窗口格式为半透明
getWindow().setFormat(PixelFormat.TRANSLUCENT);
2、Android中在非UI线程里更新View的不同方法：
* Activity.runOnUiThread( Runnable )
* View.post( Runnable )
* View.postDelayed( Runnable, long )
* Hanlder
3、全屏显示窗口
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
4、取得屏幕大小
方法A：
WindowManager windowManager = getWindowManager();
Display display = windowManager.getDefaultDisplay();
hAndW[0] = display.getWidth();
hAndW[1] = display.getHeight();
方法B：
DisplayMetrics dm = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(dm);
hAndW[0] = dm.widthPixels;
hAndW[1] = dm.heightPixels;
5、调浏览器 载入网址
Uri uri = Uri.parse("http://www.google.com");
Intent it = new Intent(Intent.ACTION_VIEW, uri);
startActivity(it);
6、取得内存大小
ActivityManager.MemoryInfo outInfo = new ActivityManager.MemoryInfo();
activityManager.getMemoryInfo(outInfo);
//可用内存
outInfo.availMem
//是否在低内存状态
outInfo.lowMemory
取得ScrollView的实际高度
scrollview.getHeight()
scrollview.getMeasuredHeight()
scrollview.compute()
scrollview.getLayoutParams().height
7、监听App安装/卸载事件
A.Define a class derived from class BroadcastReceiver;
B.Register broadcast receiver;
MyBroadcastReceiver myReceiver = new MyBroadcastReceiver();
IntentFilter filter = new IntentFilter(Intent.ACTION_PACKAGE_INSTALL);
filter.addAction(Intent.ACTION_PACKAGE_REMOVED);
filter.addAction(Intent.ACTION_PACKAGE_ADDED);
filter.addAction(Intent.ACTION_PACKAGE_CHANGED);
filter.addAction(Intent.ACTION_PACKAGE_RESTARTED);
...
filter.addDataScheme("package"); //This line is very important. Otherwise, broadcast can't be received.
registerReceiver(myReceiver, filter);
Notes: The package name is Intent.mData. Intent.mData is not available in SDK 1.0, but it can be retrieved by calling Intent.getDataString();
8、取得IP地址
A.
//Connect via WIFI 通过wifi
WifiManager wifiManager = (WifiManager) getSystemService(WIFI_SERVICE);
WifiInfo wifiInfo = wifiManager.getConnectionInfo();
int ipAddress = wifiInfo.getIpAddress();
B.
//Connect via GPRS通过gprs
public String getLocalIpAddress(){
try{
for(Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements();){
NetworkInterface intf = en.nextElement();
for (Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements();){
InetAddress inetAddress = enumIpAddr.nextElement();
if (!inetAddress.isLoopbackAddress()){
return inetAddress.getHostAddress().toString();
}
}
}
}catch (SocketException ex){
Log.e(S.TAG, ex.toString());
}
return null;
}
9、ListView 后面adapter数据已更改，但是ListView没有收到Notification
首先，必须将 更新adapter数据的代码放在：Handler.post(Runnable)方法中执行；
然后，如果Adapter数据的来源如果是cursor（CursorAdapter）的话 可以cursor.requery一下，如果是别的可以强制调用一下notifyChange, notifyChange 会调用 invalidate 进行重绘；
10、模拟HOME键
Intent i=new Intent(Intent.ACTION_MAIN);
i.addCategory(Intent.CATEGORY_HOME);
i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(i);
11、设置焦点
editText.setFocusable(true);
editText.requestFocus();
editText.setFocusableInTouchMode(true);
12：在一个应用中去调用另一个app
例如：
if (Utils.isAvilible(context, "com.netschool.main.ui"))
{
Intent i = new Intent();
ComponentName cn = new ComponentName("com.netschool.main.ui",
"com.netschool.main.ui.SplashScreenActivity");
i.setComponent(cn);
startActivity(i);
}
else
{
Uri uri = Uri.parse(context.getString(R.string.url_zhuanti_download));
Intent it = new Intent(Intent.ACTION_VIEW, uri);
it.setData(uri);
startActivity(it);
}
13：andoroid TextView 显示特殊字符
String course_jianjie ="xxxxxxxxxx";
//字符串中有 \r\n 需要替换为 <br/>
String temp =course_jianjie.replaceAll("\\r\\n", "<br/>");
//用html 来显示
CharSequence styledText = Html.fromHtml(temp);
//设置要显示的控件
mCourseDescTv.setText(styledText);
14：使用NotificationManager触发多个Notification，只显示最后一个的问题
只要每个不同的Intent对应传递一个独立的ID就可以了，以上函数修改如下（增加ID参数）：
private Notification genreNotification(Context context, int icon, String tickerText, String title, String content, Intent intent, int id){
Notification notification = new Notification(icon, tickerText, System.currentTimeMillis());
// 问题就在这里的id了
PendingIntent pendIntent = PendingIntent.getActivity(context, id, intent, PendingIntent.FLAG_UPDATE_CURRENT);
notification.setLatestEventInfo(context, title, content, pendIntent);
notification.flags |= Notification.FLAG_AUTO_CANCEL;
return notification;
}
...
mNotificationManager.notify(ID_1,
genreNotification(mContext, ICON_RES,
notifyText1, notifyTitle1, notifyText1, intent_1, ID_1));
...
mNotificationManager.notify(ID_2,
genreNotification(mContext, ICON_RES,
notifyText2, notifyTitle2, notifyText2, intent_2, ID_2));
...
mNotificationManager.notify(ID_3,
genreNotification(mContext, ICON_RES,
notifyText3, notifyTitle3, notifyText3, intent_3, ID_3));
15： adb 命令截图
adb shell /system/bin/screencap -p /sdcard/screenshot.png（保存到SDCard）
adb pull /sdcard/screenshot.png d:/screenshot.png（保存到电脑）
16：跳出for循环
OK:
for(int i=0;i<100;i++){
if(i==10){
break OK;
}
}
17：使用viewPager加载超过3页
有时会报出 The specified child already has a parent. You must call removeView() on the child's parent first 的错误
此时：可以简单的用
mViewPager.setOffscreenPageLimit(3);解决
备注：单这不是万能之策，也不是优选之策
18：
/**
* @Description:调节音量大小
* @author: jrh
* @date: 2014-11-13 下午3:06:46
* @return: void
* @param percent
*/
private void onVolumeSlide(float percent)
{
if (mVolume == -1)
{
mVolume = mAudioManager.getStreamVolume(AudioManager.STREAM_MUSIC);
if (mVolume < 0)
{
mVolume = 0;
}
mOperationBg.setImageResource(R.drawable.video_volumn_bg);
mVolumeBrightnessLayout.setVisibility(View.VISIBLE);
}
int index = (int) ((percent * mMaxVolume) + mVolume);
if (index > mMaxVolume)
{
index = mMaxVolume;// 最大音量
}
else if (index < 0)
{
index = 0;// 静音
}
// 变更声音
mAudioManager.setStreamVolume(AudioManager.STREAM_MUSIC, index, 0);
// 变更进度条
ViewGroup.LayoutParams lp = mOperationPercent.getLayoutParams();
lp.width = findViewById(R.id.operation_full).getLayoutParams().width * index /
mMaxVolume;
mOperationPercent.setLayoutParams(lp);
}
19 /**
* @Description:调节屏幕亮度
* @author: jrh
* @date: 2014-11-13 下午3:17:40
* @return: void
* @param percent
*/
private void onBrightnessSlide(float percent)
{
if (mBrightness < 0)
{
mBrightness = getWindow().getAttributes().screenBrightness;
if (mBrightness <= 0.00f)
{
mBrightness = 0.50f;
}
else if (mBrightness < 0.01f)
{
mBrightness = 0.01f;
}
// 显示
mOperationBg.setImageResource(R.drawable.video_brightness_bg);
mVolumeBrightnessLayout.setVisibility(View.VISIBLE);
}
WindowManager.LayoutParams lpa = getWindow().getAttributes();
lpa.screenBrightness = mBrightness + percent;
if (lpa.screenBrightness > 1.0f)
{
lpa.screenBrightness = 1.0f;// 最亮
}
else if (lpa.screenBrightness < 0.01f)
{
lpa.screenBrightness = 0.01f;
}
getWindow().setAttributes(lpa);
ViewGroup.LayoutParams lp = mOperationPercent.getLayoutParams();
lp.width = (int) (findViewById(R.id.operation_full).getLayoutParams().width * lpa.screenBrightness);
mOperationPercent.setLayoutParams(lp);
}
20：viewpager + fragment 布局时有时会报下面的错误
11-14 13:52:45.266: E/AndroidRuntime(4561): FATAL EXCEPTION: main
11-14 13:52:45.266: E/AndroidRuntime(4561): java.lang.NullPointerException
11-14 13:52:45.266: E/AndroidRuntime(4561): at android.support.v4.app.FragmentManagerImpl.saveFragmentBasicState(FragmentManager.java:1576)
解决方法：
在继承fragment的里面重写
@Override
public void onSaveInstanceState(Bundle outState)
{
// TODO Auto-generated method stub
super.onSaveInstanceState(outState);
setUserVisibleHint(true);
}
21：service 服务并不是另开一个线程 ，处理service 时最好单独开线程进行处理
22：不要在receiver 里面处理耗时工作
23：如果布局时： 想要在字中间加空格 可以使用 " ；" html 的空格实体编号添加。注意：一个汉字相当于 两个空格字符。
24：volatile java 关键字 保证了线程可以读取其他线程的写入值、
Thread.join() 方法保证了该线程优先执行 其他线程等待
Thread.yied() 方法 让出时间让其它线程可以执行
如何停止线程？
不要随意调用 Thread.stop()方法 ，该方法不是正确的停止线程方法 会导致一些其他的问题
使用推出的旗杆标志 ：如设置 boolean 值等
结束时及时清理资源
使用代码逻辑来使得线程执行结束 （使thread 线程内部的代码 任务执行完毕）
25：如何在TextVeiw下加入一条线
TextView tv = new TextView();
tv.getPaint().setFlags(Paint.UNDERLINE_TEXT_FLAG);
26：android 4.4 以上无法在外置SD卡创建文件夹
解决方法：
@A File dirFile = new File(temp.trim());
if (!dirFile.exists())
{// 对于4.4以上版本特别重要
getApplicationContext().getExternalFilesDir(null);
dirFile.mkdirs();
}
@B 文件路径：/android/data/包名/
27:在：
android:targetSdkVersion="18"
随着版本号的改变 界面元素，显示方式是不一样的
28：android 获取所有存储卡的地址
private String[] getSdCard() {
StorageManager sm = (StorageManager) getSystemService(Context.STORAGE_SERVICE);
String[] paths = null;
try {
paths = (String[]) sm.getClass().getMethod("getVolumePaths", null)
.invoke(sm, null);
} catch (IllegalAccessException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalArgumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (InvocationTargetException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (NoSuchMethodException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return paths;
}
29：百度地图 出现问题
A：报错
java.lang.UnsatisfiedLinkError: Couldn't load BaiduMapSDK_v3_2_0_15 from loader dalvik.system.PathClassLoader[dexPath=/data/app/com.znxh.haohao-1.apk,libraryPath=/data/app-lib/com.znxh.haohao-1]: findLibrary returned null
解决方法：
1：现在libs下建armeabi文件夹，然后加入.so库文件；
2：如果上述方法不行：再在libs下建armeabi-v7a文件夹，再导入相应.so库文件
3：定位时一定要在mainfest 文件中注册服务：
<service
android:name="com.baidu.location.f"
android:enabled="true"
android:process=":remote" >
</service>
30：处理图片上传的工具类
/*
* 上传头像
*
* @param urlStr url地址
*
* @param userid 用户id
*
* @param urlStr 要上传的图片
*/
public static Runnable upLoadFile(final Handler handler, final String urlString,
final String userid, final File file)
{
Runnable runnable = new Runnable()
{
@Override
public void run()
{
int res = 0;
String result = null;
String BOUNDARY = UUID.randomUUID().toString(); // 边界标识 随机生成
String PREFIX = "--", LINE_END = "\r\n";
String CONTENT_TYPE = "multipart/form-data"; // 内容类型
try
{
URL url = new URL(urlString);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setReadTimeout(2000);
conn.setConnectTimeout(2000);
conn.setDoInput(true); // 允许输入流
conn.setDoOutput(true); // 允许输出流
conn.setUseCaches(false); // 不允许使用缓存
conn.setRequestMethod("POST"); // 请求方式
conn.setRequestProperty("Charset", "UTF-8"); // 设置编码
conn.setRequestProperty("connection", "keep-alive");
conn.setRequestProperty("Content-Type", CONTENT_TYPE + ";boundary=" + BOUNDARY);
if (file != null)
{
/**
* 当文件不为空时执行上传
*/
DataOutputStream dos = new DataOutputStream(conn.getOutputStream());
StringBuffer sb = new StringBuffer();
sb.append("--" + BOUNDARY + "\r\n");
sb.append("Content-Disposition: form-data; name=\"userid\"" + "\r\n");
sb.append("\r\n");
sb.append(userid + "\r\n");
sb.append(PREFIX);
sb.append(BOUNDARY);
sb.append(LINE_END);
/**
* 这里重点注意： name里面的值为服务器端需要key 只有这个key 才可以得到对应的文件 filename是文件的名字，包含后缀名
*/
sb.append("Content-Disposition: form-data; name=\"photo\"; filename=\"" +
file.getName() + "\"" + LINE_END);
sb.append("Content-Type: image/pjpeg; charset=" + "UTF-8" + LINE_END);
sb.append(LINE_END);
dos.write(sb.toString().getBytes());
InputStream is = new FileInputStream(file);
byte[] bytes = new byte[1024];
int len = 0;
while ((len = is.read(bytes)) != -1)
{
dos.write(bytes, 0, len);
}
is.close();
dos.write(LINE_END.getBytes());
byte[] end_data = (PREFIX + BOUNDARY + PREFIX + LINE_END).getBytes();
dos.write(end_data);
dos.flush();
/**
* 获取响应码 200=成功 当响应成功，获取响应的流
*/
res = conn.getResponseCode();
Log.i("return code", "response code:" + res);
Log.i("userid", "" + userid);
if (res == 200)
{
InputStream input = conn.getInputStream();
StringBuffer sb1 = new StringBuffer();
int ss;
while ((ss = input.read()) != -1)
{
sb1.append((char) ss);
}
result = sb1.toString();
Log.i("return", "result : " + result);
Message message = Message.obtain();
message.what = 666;
handler.sendMessage(message);
}
else
{
Log.i("return", "request error");
}
}
}
catch (MalformedURLException e)
{
e.printStackTrace();
}
catch (IOException e)
{
e.printStackTrace();
}
}
};
return runnable;
} 31：listview单条数据更新
<div class="line number1 index0 alt2" style="line-height: 15.3999996185303px; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace; font-size: 14px; color: rgb(64, 64, 64); padding: 0px 1em !important; margin: 0px !important; border-radius: 0px !important; border: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important; white-space: pre !important; background: none rgb(27, 36, 38) !important;"><code class="java keyword" style="white-space: nowrap; padding: 0px !important; margin: 0px !important; border: 0px !important; border-radius: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-size: 1em !important; min-height: auto !important; color: rgb(91, 161, 207) !important; background: none !important;">private</code> <code class="java keyword" style="white-space: nowrap; padding: 0px !important; margin: 0px !important; border: 0px !important; border-radius: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-size: 1em !important; min-height: auto !important; color: rgb(91, 161, 207) !important; background: none !important;">void</code> <code class="java plain" style="white-space: nowrap; padding: 0px !important; margin: 0px !important; border: 0px !important; border-radius: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-size: 1em !important; min-height: auto !important; color: rgb(185, 189, 182) !important; background: none !important;">updateSingleRow(ListView listView, </code><code class="java keyword" style="white-space: nowrap; padding: 0px !important; margin: 0px !important; border: 0px !important; border-radius: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-size: 1em !important; min-height: auto !important; color: rgb(91, 161, 207) !important; background: none !important;">long</code> <code class="java plain" style="white-space: nowrap; padding: 0px !important; margin: 0px !important; border: 0px !important; border-radius: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-size: 1em !important; min-height: auto !important; color: rgb(185, 189, 182) !important; background: none !important;">id) { </code></div><div class="line number2 index1 alt1" style="line-height: 15.3999996185303px; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace; font-size: 14px; color: rgb(64, 64, 64); padding: 0px 1em !important; margin: 0px !important; border-radius: 0px !important; border: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important; white-space: pre !important; background: none rgb(27, 36, 38) !important;"><code class="java spaces" style="white-space: nowrap; padding: 0px !important; margin: 0px !important; border: 0px !important; border-radius: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-size: 1em !important; min-height: auto !important; background: none !important;"> </code> </div><div class="line number3 index2 alt2" style="line-height: 15.3999996185303px; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace; font-size: 14px; color: rgb(64, 64, 64); padding: 0px 1em !important; margin: 0px !important; border-radius: 0px !important; border: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important; white-space: pre !important; background: none rgb(27, 36, 38) !important;"><code class="java spaces" style="white-space: nowrap; padding: 0px !important; margin: 0px !important; border: 0px !important; border-radius: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-size: 1em !important; min-height: auto !important; background: none !important;"> </code><code class="java keyword" style="white-space: nowrap; padding: 0px !important; margin: 0px !important; border: 0px !important; border-radius: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-size: 1em !important; min-height: auto !important; color: rgb(91, 161, 207) !important; background: none !important;">if</code> <code class="java plain" style="white-space: nowrap; padding: 0px !important; margin: 0px !important; border: 0px !important; border-radius: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-size: 1em !important; min-height: auto !important; color: rgb(185, 189, 182) !important; background: none !important;">(listView != </code><code class="java keyword" style="white-space: nowrap; padding: 0px !important; margin: 0px !important; border: 0px !important; border-radius: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-size: 1em !important; min-height: auto !important; color: rgb(91, 161, 207) !important; background: none !important;">null</code><code class="java plain" style="white-space: nowrap; padding: 0px !important; margin: 0px !important; border: 0px !important; border-radius: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-size: 1em !important; min-height: auto !important; color: rgb(185, 189, 182) !important; background: none !important;">) { </code></div><div class="line number4 index3 alt1" style="line-height: 15.3999996185303px; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace; font-size: 14px; color: rgb(64, 64, 64); padding: 0px 1em !important; margin: 0px !important; border-radius: 0px !important; border: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important; white-space: pre !important; background: none rgb(27, 36, 38) !important;"><code class="java spaces" style="white-space: nowrap; padding: 0px !important; margin: 0px !important; border: 0px !important; border-radius: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-size: 1em !important; min-height: auto !important; background: none !important;"> </code><code class="java keyword" style="white-space: nowrap; padding: 0px !important; margin: 0px !important; border: 0px !important; border-radius: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-size: 1em !important; min-height: auto !important; color: rgb(91, 161, 207) !important; background: none !important;">int</code> <code class="java plain" style="white-space: nowrap; padding: 0px !important; margin: 0px !important; border: 0px !important; border-radius: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-size: 1em !important; min-height: auto !important; color: rgb(185, 189, 182) !important; background: none !important;">start = listView.getFirstVisiblePosition(); </code></div><div class="line number5 index4 alt2" style="line-height: 15.3999996185303px; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace; font-size: 14px; color: rgb(64, 64, 64); padding: 0px 1em !important; margin: 0px !important; border-radius: 0px !important; border: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important; white-space: pre !important; background: none rgb(27, 36, 38) !important;"><code class="java spaces" style="white-space: nowrap; padding: 0px !important; margin: 0px !important; border: 0px !important; border-radius: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-size: 1em !important; min-height: auto !important; background: none !important;"> </code><code class="java keyword" style="white-space: nowrap; padding: 0px !important; margin: 0px !important; border: 0px !important; border-radius: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-size: 1em !important; min-height: auto !important; color: rgb(91, 161, 207) !important; background: none !important;">for</code> <code class="java plain" style="white-space: nowrap; padding: 0px !important; margin: 0px !important; border: 0px !important; border-radius: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-size: 1em !important; min-height: auto !important; color: rgb(185, 189, 182) !important; background: none !important;">(</code><code class="java keyword" style="white-space: nowrap; padding: 0px !important; margin: 0px !important; border: 0px !important; border-radius: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-size: 1em !important; min-height: auto !important; color: rgb(91, 161, 207) !important; background: none !important;">int</code> <code class="java plain" style="white-space: nowrap; padding: 0px !important; margin: 0px !important; border: 0px !important; border-radius: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-size: 1em !important; min-height: auto !important; color: rgb(185, 189, 182) !important; background: none !important;">i = start, j = listView.getLastVisiblePosition(); i <= j; i++) </code></div><div class="line number6 index5 alt1" style="line-height: 15.3999996185303px; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace; font-size: 14px; color: rgb(64, 64, 64); padding: 0px 1em !important; margin: 0px !important; border-radius: 0px !important; border: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important; white-space: pre !important; background: none rgb(27, 36, 38) !important;"><code class="java spaces" style="white-space: nowrap; padding: 0px !important; margin: 0px !important; border: 0px !important; border-radius: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-size: 1em !important; min-height: auto !important; background: none !important;"> </code><code class="java keyword" style="white-space: nowrap; padding: 0px !important; margin: 0px !important; border: 0px !important; border-radius: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-size: 1em !important; min-height: auto !important; color: rgb(91, 161, 207) !important; background: none !important;">if</code> <code class="java plain" style="white-space: nowrap; padding: 0px !important; margin: 0px !important; border: 0px !important; border-radius: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-size: 1em !important; min-height: auto !important; color: rgb(185, 189, 182) !important; background: none !important;">(id == ((Messages) listView.getItemAtPosition(i)).getId()) { </code></div><div class="line number7 index6 alt2" style="line-height: 15.3999996185303px; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace; font-size: 14px; color: rgb(64, 64, 64); padding: 0px 1em !important; margin: 0px !important; border-radius: 0px !important; border: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important; white-space: pre !important; background: none rgb(27, 36, 38) !important;"><code class="java spaces" style="white-space: nowrap; padding: 0px !important; margin: 0px !important; border: 0px !important; border-radius: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-size: 1em !important; min-height: auto !important; background: none !important;"> </code><code class="java plain" style="white-space: nowrap; padding: 0px !important; margin: 0px !important; border: 0px !important; border-radius: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-size: 1em !important; min-height: auto !important; color: rgb(185, 189, 182) !important; background: none !important;">View view = listView.getChildAt(i - start); </code></div><div class="line number8 index7 alt1" style="line-height: 15.3999996185303px; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace; font-size: 14px; color: rgb(64, 64, 64); padding: 0px 1em !important; margin: 0px !important; border-radius: 0px !important; border: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important; white-space: pre !important; background: none rgb(27, 36, 38) !important;"><code class="java spaces" style="white-space: nowrap; padding: 0px !important; margin: 0px !important; border: 0px !important; border-radius: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-size: 1em !important; min-height: auto !important; background: none !important;"> </code><code class="java plain" style="white-space: nowrap; padding: 0px !important; margin: 0px !important; border: 0px !important; border-radius: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-size: 1em !important; min-height: auto !important; color: rgb(185, 189, 182) !important; background: none !important;">getView(i, view, listView); </code></div><div class="line number9 index8 alt2" style="line-height: 15.3999996185303px; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace; font-size: 14px; color: rgb(64, 64, 64); padding: 0px 1em !important; margin: 0px !important; border-radius: 0px !important; border: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important; white-space: pre !important; background: none rgb(27, 36, 38) !important;"><code class="java spaces" style="white-space: nowrap; padding: 0px !important; margin: 0px !important; border: 0px !important; border-radius: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-size: 1em !important; min-height: auto !important; background: none !important;"> </code><code class="java keyword" style="white-space: nowrap; padding: 0px !important; margin: 0px !important; border: 0px !important; border-radius: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-size: 1em !important; min-height: auto !important; color: rgb(91, 161, 207) !important; background: none !important;">break</code><code class="java plain" style="white-space: nowrap; padding: 0px !important; margin: 0px !important; border: 0px !important; border-radius: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-size: 1em !important; min-height: auto !important; color: rgb(185, 189, 182) !important; background: none !important;">; </code></div><div class="line number10 index9 alt1" style="line-height: 15.3999996185303px; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace; font-size: 14px; color: rgb(64, 64, 64); padding: 0px 1em !important; margin: 0px !important; border-radius: 0px !important; border: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important; white-space: pre !important; background: none rgb(27, 36, 38) !important;"><code class="java spaces" style="white-space: nowrap; padding: 0px !important; margin: 0px !important; border: 0px !important; border-radius: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-size: 1em !important; min-height: auto !important; background: none !important;"> </code><code class="java plain" style="white-space: nowrap; padding: 0px !important; margin: 0px !important; border: 0px !important; border-radius: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-size: 1em !important; min-height: auto !important; color: rgb(185, 189, 182) !important; background: none !important;">} </code></div><div class="line number11 index10 alt2" style="line-height: 15.3999996185303px; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace; font-size: 14px; color: rgb(64, 64, 64); padding: 0px 1em !important; margin: 0px !important; border-radius: 0px !important; border: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important; white-space: pre !important; background: none rgb(27, 36, 38) !important;"><code class="java spaces" style="white-space: nowrap; padding: 0px !important; margin: 0px !important; border: 0px !important; border-radius: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-size: 1em !important; min-height: auto !important; background: none !important;"> </code><code class="java plain" style="white-space: nowrap; padding: 0px !important; margin: 0px !important; border: 0px !important; border-radius: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-size: 1em !important; min-height: auto !important; color: rgb(185, 189, 182) !important; background: none !important;">} </code></div><div class="line number12 index11 alt1" style="line-height: 15.3999996185303px; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace; font-size: 14px; color: rgb(64, 64, 64); padding: 0px 1em !important; margin: 0px !important; border-radius: 0px !important; border: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important; white-space: pre !important; background: none rgb(27, 36, 38) !important;"><code class="java spaces" style="white-space: nowrap; padding: 0px !important; margin: 0px !important; border: 0px !important; border-radius: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-size: 1em !important; min-height: auto !important; background: none !important;"> </code><code class="java plain" style="white-space: nowrap; padding: 0px !important; margin: 0px !important; border: 0px !important; border-radius: 0px !important; bottom: auto !important; float: none !important; height: auto !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-size: 1em !important; min-height: auto !important; color: rgb(185, 189, 182) !important; background: none !important;">}</code></div>
内容来自用户分享和网络整理，不保证内容的准确性，如有侵权内容，可联系管理员处理 
相关文章推荐
- (转)整理出15个Android很有用的代码片段(技巧)
- android实用代码片段
- Android——整理出15个有用代码片段
- 整理出20个Android很有用的代码片段
- Android实用代码片段整合
- 整理出20个Android很有用的代码片段
- 整理出15个Android很有用的代码片段(技巧)ophone
- Android实用代码片段
- Android实用的代码片段 常用代码总结
- android实用代码片段（三）
- 整理出15个Android很有用的代码片段
- JavaScript实用功能代码片段整理三
- 1.android：整理出15个Android很有用的代码片段(技巧)
- Android实用代码片段整合
- 【转载】整理出15个Android很有用的代码片段
- 整理出20个Android很有用的代码片段
- JavaScript实用功能代码片段整理一
- JavaScript实用功能代码片段整理二
- android实用代码片段(一)
- 转--Android实用的代码片段 常用代码总结