Question

我在片段中添加了onClick()按钮以显示结果。我还在onActivityResult()中添加了MyActivity方法。我想在更多片段中添加onClick()按钮并显示结果。

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

以下是OnActivityResultmethod的代码：

    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

试试这个你不能多次覆盖方法，所以你的价值

  startActivityForResult(intent,1);

in on activity result

  @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
        }

    }

}

已编辑的答案 在你的片段java文件

 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();
        }
    }

Answer 2

您只需要使用switch案例，如下所示：

 public void onActivityResult(int requestCode, int resultCode, Intent data) {
            super.onActivityResult(requestCode, resultCode, data);
            try {
                switch (requestCode) {
                    case REQUEST_CODE_CAPTURE_IMAGE:

                        if (requestCode == REQUEST_CODE_CAPTURE_IMAGE && resultCode == Activity.RESULT_OK ) {

                         //your code

                        break;
                    case PHOTO_PICKER_ID:
                        if (requestCode == PHOTO_PICKER_ID && resultCode == Activity.RESULT_OK && null != data) {
                           //your code
                        }

                        break;
                }
            } catch (Exception e)
            {
                Log.d("krvrrusbviuritiribtr", e.getMessage());
            }
        }

Answer 3

当您调用 startActivityForResult（intent，requestCode）; 时，您只需要使用不同的requestCode。此号码将发送至 onActivityResult（requestCode，resultCode，intent）

为您的活动中的请求创建一些常量（称之为MyActivity）。

public class MyActivity{
    private static final int REQUEST_ONE = 1;
    private static final int REQUEST_TWO = 2;

    ...

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent intent) {  
    //Management of the result, see below
    }
}

使用与请求调用相对应的常量。

//startActivityForResult(intent,REQUEST_CODE);

在第一个片段中，您将使用

public void clickButton(View v){
    startActivityForResult(intent,MyActivity.REQUEST_ONE);
}

在第二个片段中，您将使用

public void clickButton(View v){
    startActivityForResult(intent,MyActivity.REQUEST_TWO);
}

然后，您只需要在activity中实现result方法，以处理requestCode值以执行正确的代码。使用开关或if else条件。有更多的可能性（使用某种模式），但最简单的是那些。

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent intent) {  
    if(requestCode == REQUEST_ONE){
        // the code for request one
    } else if(requestCode == REQUEST_TWO){
        // the code for request two
    } else {
        super.onActivityResult(requestCode, resultCode, intent);
    }
}

或使用开关

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent intent) {

    switch(requestCode)
    case REQUEST_ONE:
        // the code for request one
        break;
    case REQUEST_TWO:
        // the code for request two
        break;
    default:
        super.onActivityResult(requestCode, resultCode, intent);
    }
}

如果您有太多请求，请为每个请求创建一个方法，这将使结果方法更具可读性。

Android中的多个Onactivityresult方法

3 个答案: