技巧速查——分享我的Android程序开发心得

String status=Environment.getExternalStorageState();
if(status.equals(Enviroment.MEDIA_MOUNTED))
{
说明有SD卡插入
}

String body="this is mms demo";

Intent mmsintent = new Intent(Intent.ACTION_SENDTO, Uri.fromParts("smsto", number, null));
mmsintent.putExtra(Messaging.KEY_ACTION_SENDTO_MESSAGE_BODY, body);
mmsintent.putExtra(Messaging.KEY_ACTION_SENDTO_COMPOSE_MODE, true);
mmsintent.putExtra(Messaging.KEY_ACTION_SENDTO_EXIT_ON_SENT, true);
startActivity(mmsintent);

StringBuilder sb = new StringBuilder();

sb.append("file://");

sb.append(fd.getAbsoluteFile());

Intent intent = new Intent(Intent.ACTION_SENDTO, Uri.fromParts("mmsto", number, null));
// Below extra datas are all optional.
intent.putExtra(Messaging.KEY_ACTION_SENDTO_MESSAGE_SUBJECT, subject);
intent.putExtra(Messaging.KEY_ACTION_SENDTO_MESSAGE_BODY, body);
intent.putExtra(Messaging.KEY_ACTION_SENDTO_CONTENT_URI, sb.toString());
intent.putExtra(Messaging.KEY_ACTION_SENDTO_COMPOSE_MODE, composeMode);
intent.putExtra(Messaging.KEY_ACTION_SENDTO_EXIT_ON_SENT, exitOnSent);

startActivity(intent);

mime = "img/jpg";
shareIntent.setDataAndType(Uri.fromFile(fd), mime);
shareIntent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(fd));
shareIntent.putExtra(Intent.EXTRA_SUBJECT, subject);

shareIntent.putExtra(Intent.EXTRA_TEXT, body);

registerReceiver(mMasterResetReciever, new IntentFilter("oms.action.MASTERRESET"));

private BroadcastReceiver mMasterResetReciever = new BroadcastReceiver() {

public void onReceive(Context context, Intent intent){
String action = intent.getAction();
if("oms.action.MASTERRESET".equals(action)){
RecoverDefaultConfig();
}
}

};

private ContentObserver mDownloadsObserver = new DownloadsChangeObserver(Downloads.CONTENT_URI);

private class DownloadsChangeObserver extends ContentObserver {
public DownloadsChangeObserver(Uri uri) {
super(new Handler());

}

@Override
public void onChange(boolean selfChange) {｝
}

public String getUserAgent()
{
String user_agent = ProductProperties.get(ProductProperties.USER_AGENT_KEY, null);
return user_agent;
}

//Dial the GPRS link.
private boolean openDataConnection() {
// Set up data connection.
DataConnection conn = DataConnection.getInstance();

if (connectMode == 0) {
ret = conn.openConnection(mContext, "cmwap", "cmwap", "cmwap");
} else {
ret = conn.openConnection(mContext, "cmnet", "", "");
}

}

public class Setting extends PreferenceActivity

｛

public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.xml.settings)；
}

｝

Setting.xml:

android:key="seting2"
android:title="@string/seting2"
android:summary="@string/seting2"/>

android:key="seting1"
android:title="@string/seting1"
android:summaryOff="@string/seting1summaryOff"
android:summaryOn="@stringseting1summaryOff"/>

DefaultHttpClient httpClient = new DefaultHttpClient();
HttpGet method = new HttpGet(“http://www.baidu.com/1.html”);
HttpResponse resp;
Reader reader = null;
try {
// AllClientPNames.TIMEOUT
HttpParams params = new BasicHttpParams();
params.setIntParameter(AllClientPNames.CONNECTION_TIMEOUT, 10000);
httpClient.setParams(params);
resp = httpClient.execute(method);
int status = resp.getStatusLine().getStatusCode();

if (status != HttpStatus.SC_OK) return false;

// HttpStatus.SC_OK;
return true;
} catch (ClientProtocolException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
if (reader != null) try {
reader.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}