java - Android 中的多个 Onactivityresult 方法

Question

我在 fragment 中添加了 onClick() 按钮来显示结果。我还在 MyActivity 中添加了 onActivityResult() 方法。我想在更多 fragment 中添加 onClick() 按钮并显示结果。

在这种情况下，我应该如何在 Activity 中编写多个 onActivityResult() 方法？

下面是我的OnActivityResultmethod代码:

    button = (Button) view.findViewById(R.id.zing);
    button.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            IntentIntegrator scanIntegrator = new IntentIntegrator(getActivity());
            scanIntegrator.initiateScan();

        }


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

      if (resultCode == RESULT_OK) {
    IntentResult scanResult = IntentIntegrator.parseActivityResult(requestCode, resultCode, 
     data);
Fragment fragment = this.getFragmentManager().findFragmentById(R.id.total_frame_content);
           if (fragment instanceof CustomerIdFragment) {
               if (scanResult != null) {
                   if (scanResult.getContents() == null) {
                       Toast.makeText(this, "Cancelled", Toast.LENGTH_SHORT).show();

                   } else {

                       //String customerSno = scanResult.getContents().substring(0, 10),
                       //       passCode = scanResult.getContents().substring(10, 14);
        Toast.makeText(this, " " + scanResult.getContents(), Toast.LENGTH_SHORT).show();
                     //  System.out.println("Result" + scanResult.getContents());

                   }
               }

           }
       }

Answer 1

尝试这个，你不能多次覆盖方法，所以你可以使用 int 值

  startActivityForResult(intent,1);

Activity 结果

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

    if(requestCode == 1){

        if(resultCode == RESULT_OK){
        //do somthing
        }

    }

    if(requestCode == 2){

        if(resultCode == RESULT_OK){
                //do somthing
        }

    }

    if(requestCode == 3){

        if(resultCode == RESULT_OK){
            //do somthing
        }

    }

}

编辑答案在您的 fragment java 文件中

 private int PICK_IMAGE_REQUEST_CODE = 1;
btChoseFile = (Button)view.findViewById(R.id.btChoseFile);

    btStar.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {

            Intent intent = new Intent();
            intent.setType("*/*");
            intent.setAction(Intent.ACTION_GET_CONTENT);
            startActivityForResult(Intent.createChooser(intent, "Select Picture"), PICK_IMAGE_REQUEST_CODE);

        }
    });




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

        if(requestCode == PICK_IMAGE_REQUEST_CODE){
            Toast.makeText(getActivity(),"On Activity Result in fragment",Toast.LENGTH_LONG).show();
        }
    }