android保存图片到本地并可以在相册中显示出来

<p style="border-width: 0px; padding-top: 0px; padding-bottom: 0px; margin-top: 0px; margin-bottom: 8px; list-style: none; text-indent: 2em; font-family: 宋体; line-height: 28px; background-color: rgb(249, 249, 249);"><span style="font-size:24px;color:#ff0000;">方法1：</span></p><p style="border-width: 0px; padding-top: 0px; padding-bottom: 0px; margin-top: 0px; margin-bottom: 8px; list-style: none; text-indent: 2em; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; line-height: 28px; background-color: rgb(249, 249, 249);">保存图片很简单，方法如下：</p><p style="border-width: 0px; padding-top: 0px; padding-bottom: 0px; margin-top: 0px; margin-bottom: 8px; list-style: none; text-indent: 2em; color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; line-height: 28px; background-color: rgb(249, 249, 249);">/** 首先默认个文件保存路径 */
private static final String SAVE_PIC_PATH=Environment.getExternalStorageState().equalsIgnoreCase(Environment.MEDIA_MOUNTED) ? Environment.getExternalStorageDirectory().getAbsolutePath() : /mnt/sdcard;//保存到SD卡
private static final String SAVE_REAL_PATH = SAVE_PIC_PATH+ /good/savePic;//保存的确切位置</p>

下面就是保存的方法，传入参数就可以了：

public static void saveFile(Bitmap bm, String fileName, String path) throws IOException {
String subForder = SAVE_REAL_PATH + path;
File foder = new File(subForder);
if (!foder.exists()) {
foder.mkdirs();
}
File myCaptureFile = new File(subForder, fileName);
if (!myCaptureFile.exists()) {
myCaptureFile.createNewFile();
}www.2cto.com
BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(myCaptureFile));
bm.compress(Bitmap.CompressFormat.JPEG, 80, bos);
bos.flush();
bos.close();
}

这样就保存好了，可是有的时候明明保存下来了，为什么进入相册时查看不到呢？反正我是遇到这样的问题的，原来我们在保存成功后，还要发一个系统广播通知手机有图片更新，广播如下：

Intent intent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);

Uri uri = Uri.fromFile(file);

intent.setData(uri);

context.sendBroadcast(intent);//这个广播的目的就是更新图库，发了这个广播进入相册就可以找到你保存的图片了！，记得要传你更新的file哦
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方法2

<span style="font-size:14px;">/** 保存方法 */
public void saveBitmap() {
Log.e(TAG, "保存图片");
File f = new File("/sdcard/namecard/", picName);
if (f.exists()) {
f.delete();
}
try {
FileOutputStream out = new FileOutputStream(f);
bm.compress(Bitmap.CompressFormat.PNG, 90, out);
out.flush();
out.close();
Log.i(TAG, "已经保存");
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} </span>

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

<uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"/>