private static boolean checkInstallation(Context context, String packageName) {  try {   context.getPackageManager().getPackageInfo(packageName, PackageManager.GET_ACTIVITIES);   return true;  } catch (PackageManager.NameNotFoundException e) {   return false;  } } public static void shareToWeChat(View view, Context context) {  // TODO: 2015/12/13 將需要分享到微信的圖片準備好  try {   if (!checkInstallation(context, "com.tencent.mm")) {    SnackBarUtil.show(view, R.string.share_no_wechat);    return;   }   Intent intent = new Intent();   //分享精確到微信的頁面，朋友圈頁面，或者選擇好友分享頁面   ComponentName comp = new ComponentName("com.tencent.mm", "com.tencent.mm.ui.tools.ShareToTimeLineUI");   intent.setComponent(comp);   intent.setAction(Intent.ACTION_SEND_MULTIPLE);   intent.setType("image/*");//  intent.setType("text/plain");   //添加Uri圖片地址//  String msg=String.format(getString(R.string.share_content), getString(R.string.app_name), getLatestWeekStatistics() + "");   String msg = context.getString(R.string.share_content);   intent.putExtra("Kdescription", msg);   ArrayList<Uri> imageUris = new ArrayList<Uri>();   // TODO: 2016/3/8 根據不同圖片來設置分享   File dir = context.getExternalFilesDir(null);   if (dir == null || dir.getAbsolutePath().equals("")) {    dir = new File(Environment.getExternalStorageDirectory().getAbsolutePath());   }   File pic = new File(dir, "bigbang.jpg");   pic.deleteOnExit();   BitmapDrawable bitmapDrawable;   if (Build.VERSION.SDK_INT < 22) {    bitmapDrawable = (BitmapDrawable) context.getResources().getDrawable(R.mipmap.bannar);   } else {    bitmapDrawable = (BitmapDrawable) context.getDrawable(R.mipmap.bannar);   }   try {    bitmapDrawable.getBitmap().compress(Bitmap.CompressFormat.JPEG, 75, new FileOutputStream(pic));   } catch (FileNotFoundException e) {    e.printStackTrace();   }   if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N) {    imageUris.add(Uri.fromFile(pic));   }else {    //修復微信在7.0崩潰的問題    Uri uri =Uri.parse(android.provider.MediaStore.Images.Media.insertImage(context.getContentResolver(), pic.getAbsolutePath(), "bigbang.jpg", null));    imageUris.add(uri);   }   intent.putParcelableArrayListExtra(Intent.EXTRA_STREAM, imageUris);   ((Activity) context).startActivityForResult(intent, 1000);  }catch (Throwable e){   SnackBarUtil.show(view,R.string.share_error); }

String mCurrentPhotoPath;private File createImageFile() throws IOException { // Create an image file name String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date()); String imageFileName = "JPEG_" + timeStamp + "_"; File storageDir = getExternalFilesDir(Environment.DIRECTORY_PICTURES); File image = File.createTempFile(  imageFileName, /* prefix */  ".jpg",   /* suffix */  storageDir  /* directory */ ); // Save a file: path for use with ACTION_VIEW intents mCurrentPhotoPath = "file:" + image.getAbsolutePath(); return image;}static final int REQUEST_TAKE_PHOTO = 1;private void dispatchTakePictureIntent() { Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); // Ensure that there's a camera activity to handle the intent if (takePictureIntent.resolveActivity(getPackageManager()) != null) {  // Create the File where the photo should go  File photoFile = null;  try {   photoFile = createImageFile();  } catch (IOException ex) {   // Error occurred while creating the File   ...  }  // Continue only if the File was successfully created  if (photoFile != null) {   Uri photoURI = FileProvider.getUriForFile(this,             "com.example.android.fileprovider",             photoFile);   takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoURI);   startActivityForResult(takePictureIntent, REQUEST_TAKE_PHOTO);  } }}

<application> ... <provider  android:name="android.support.v4.content.FileProvider"  android:authorities="com.example.android.fileprovider"  android:exported="false"  android:grantUriPermissions="true">  <meta-data   android:name="android.support.FILE_PROVIDER_PATHS"   android:resource="@xml/file_paths"></meta-data> </provider> ...</application>

<?xml version="1.0" encoding="utf-8"?><paths xmlns:android="http://schemas.android.com/apk/res/android"> <external-path name="my_images" path="Android/data/com.example.package.name/files/Pictures" /></paths>