将图库中的图片加载为Android中的位图对象

Question

如何从图库加载图像作为android位图对象？

Answer 1

尝试在你的活动：

private static final int SELECT_PICTURE_ACTIVITY_REQUEST_CODE = 0; 
.... 
private void selectPicture() { 
    Intent intent = new Intent(Intent.ACTION_PICK); 
    intent.setType("image/*"); 
    startActivityForResult(intent, SELECT_PICTURE_ACTIVITY_REQUEST_CODE); 
} 
.... 
@Override 
protected void onActivityResult(int requestCode, int resultCode, Intent imageReturnedIntent) { 
    super.onActivityResult(requestCode, resultCode, imageReturnedIntent); 

    switch (requestCode) { 
     case SELECT_PICTURE_ACTIVITY_REQUEST_CODE: 
      if (resultCode == RESULT_OK) { 
       Uri selectedImage = imageReturnedIntent.getData(); 
       String[] filePathColumn = {MediaStore.Images.Media.DATA}; 
       Cursor cursor = getContentResolver().query(selectedImage, filePathColumn, null, null, null); 
       if (cursor.moveToFirst()) { 
        int columnIndex = cursor.getColumnIndex(filePathColumn[0]); 
        String filePath = cursor.getString(columnIndex); 
        Bitmap bitmap = BitmapFactory.decodeFile(filePath); 
        ......... 
       } 
       cursor.close(); 
      } 
      break; 
    } 
}