从图库中获取图像以在片段中的图像视图中设置？ [复制]

Question

如何从图库中获取图像以在片段中的 Imageview 中设置？ onActivityResult 没有在片段中调用..这是我在片段中编写的代码

img_user.setOnClickListener(new View.OnClickListener() {
            @Override
        public void onClick(View v) {

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


        }
    });


public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);


        if (data != null) {
            Uri selectedImage = data.getData();
            String[] filePathColumn = { MediaStore.Images.Media.DATA };
            Cursor cursor = getContext().getContentResolver().query(selectedImage,
                    filePathColumn, null, null, null);

            cursor.moveToFirst();
            int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
            String picturePath = cursor.getString(columnIndex);
            img_user.setImageBitmap(BitmapFactory.decodeFile(picturePath));
            cursor.close`enter code here`();
        } else {
            Toast.makeText(getActivity(), "Try Again!!", Toast.LENGTH_SHORT)
                    .show();
        }

    }

Answer 1

你可以这样做......在你的主要活动中

  @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
       //call super 
       super.onActivityResult(requestCode, resultCode, data);
     }

在你的片段中

 Intent i = new Intent(Intent.ACTION_PICK,android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
                // ******** code for crop image
                i.putExtra("crop", "true");
                i.putExtra("aspectX", 100);
                i.putExtra("aspectY", 100);
                i.putExtra("outputX", 256);
                i.putExtra("outputY", 356);

                try {

                    i.putExtra("return-data", true);
                    startActivityForResult(
                            Intent.createChooser(i, "Select Picture"), 0);
                }catch (ActivityNotFoundException ex){
                    ex.printStackTrace();
                }

和

@Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if(requestCode==0 && resultCode == Activity.RESULT_OK){
            try {
                Bundle bundle = data.getExtras();
                Bitmap bitmap = bundle.getParcelable("data");
                img_user.setImageBitmap(bitmap);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }

非常适合我

Answer 2

我也遇到了同样的问题。实际上，startActivityForResult() 的回调正在返回父活动，因此您需要进行 从片段到onActivityResult()函数的显式调用如下。

在 Parent Activity 类中，重写 onActivityResult() 方法，甚至在 Fragment 类中重写，并调用如下代码。

在父类中：

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    Fragment fragment = getFragmentManager().findFragmentById(R.id.container);
    fragment.onActivityResult(requestCode, resultCode, data);
}

在子类中： 扩展片段执行您在 imageview 上设置图像的逻辑。

@Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {



        if (data != null) {
            Uri selectedImage = data.getData();
            String[] filePathColumn = { MediaStore.Images.Media.DATA };
            Cursor cursor = getActivity().getContentResolver().query(selectedImage, filePathColumn, null, null, null);

                cursor.moveToFirst();
                int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
                 String picturePath = cursor.getString(columnIndex);
                image.setImageBitmap(BitmapFactory.decodeFile(picturePath));

                cursor.close();
            } else {
                Toast.makeText(getActivity(), "Try Again!!", Toast.LENGTH_SHORT).show();
            }
            super.onActivityResult(requestCode, resultCode, data);
        }

Answer 3

请找到以下代码，它将起作用。将此添加到您的片段中

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {

//Your stuff

}