当我从图库中选择图像时，意图数据在onActivityResult中为null

Question

我需要从图库中获取图像并将其转换为位图。

这是发送意图代码：

Intent i = new Intent(
       Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI); 
       startActivityForResult(i, RESULT_LOAD_IMAGE); 

onActivityResult：

@Override 
    protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
     super.onActivityResult(requestCode, resultCode, data); 
     if (requestCode == mResultLoadImage && resultCode == RESULT_OK && data != null) { 
      Uri pickedImage = data.getData(); 
      String[] filePath = { MediaStore.Images.Media.DATA }; 
      Cursor cursor = getContentResolver().query(pickedImage, filePath, 
        null, null, null); 
      cursor.moveToFirst(); 
      String imagePath = cursor.getString(cursor 
        .getColumnIndex(filePath[0])); 
      bitmap = BitmapFactory.decodeFile(imagePath); 
      someFunction(bitmap); 
      cursor.close(); 
     } 
} 

我总是得到一个NullPointerException，并与debuger，我发现数据意图为空。 任何解决方案？

Answer 1

试试这个，它应该工作：

Intent intent = new Intent(Intent.ACTION_PICK); 
startActivityForResult(intent, RESULT_LOAD_IMAGE); 

@Override 
protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
    super.onActivityResult(requestCode, resultCode, data); 
    if (requestCode == RESULT_LOAD_IMAGE) { 
     Uri imageUri = data.getData(); 
     Bitmap imgBitmap = BitmapFactory.decodeStream(getContentResolver().openInputStream(imageUri), null, null); 
     // then do whatever you want with the bitmap 
    } 

}