未调用OnActivityResult

Question

private void openDialog() {
        CustomDialog alert = new CustomDialog();
        alert.showDialog(this);
    }

CustomDialog

public class CustomDialog extends Activity{

    Activity activity;
    ImageView imageView;

    public void showDialog(Activity activity) {
        this.activity = activity;
        final Dialog dialog = new Dialog(activity);
        dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
        dialog.setCancelable(false);
        dialog.setContentView(R.layout.custom_dialog);
        dialog.getWindow().setBackgroundDrawableResource(android.R.color.transparent);
        dialog.setCanceledOnTouchOutside(true);

        imageView = (ImageView) dialog.findViewById(R.id.logoApp);

        Button galleryBtn = (Button) dialog.findViewById(R.id.galleryBtn);

        galleryBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                galleryIntent();
            }
        });
        dialog.show();
    }

    private void galleryIntent() {
        Intent intent = new Intent();
        intent.setType("image/*");
        intent.setAction(Intent.ACTION_GET_CONTENT);//
        activity.startActivityForResult(Intent.createChooser(intent, "Select File"), 1);
    }

    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        Toast.makeText(activity,"sdddddsss",Toast.LENGTH_LONG).show();
        super.onActivityResult(requestCode, resultCode, data);
        if (resultCode == Activity.RESULT_OK) {
            if (requestCode == 1) {
                onSelectFromGalleryResult(data);
            }else{
              // ...
            }
        }
    }

    @SuppressWarnings("deprecation")
    private void onSelectFromGalleryResult(Intent data) {
        Bitmap bm=null;
        if (data != null) {
            try {
                bm = MediaStore.Images.Media.getBitmap(getApplicationContext().getContentResolver(), data.getData());
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        imageView.setImageBitmap(bm);
    }
}

下面是http://www.theappguruz.com/blog/android-take-photo-camera-gallery-code-sample

Answer 1

在活动A中显示dialog时，将活动A的引用设置为param:alert.showDialog（this）；，然后在CustomDialog中，将该引用保存为活动变量：

公共void showDialog（Activity Activity）{this.Activity=Activity；...}

这意味着，This.Activity是Activity A的实例。稍后，在galleryIntent（）中，为结果启动Activity如下所示：

这意味着onActivityResult将在Activity A中调用，而不是在您的自定义对话框中调用，因为您使用了Activity变量。

您有2个修复选项：

1）将Activity.StartActivityForResult替换为CustomDialog.This.StartActivityForResult