使用Android相同的片段多次 - 如何有不同的onclick行动

Question

可以说我有一个片段MyFragment和我创建myFragment1和myFragment2。两者共享相同的xml布局，这只是一个图像按钮。使用onClick，我该如何做到这一点，以便点击任一按钮不会做同样的事情？

例如，如果我想myFragment1的按钮，进入到活动A，我想myFragment2的按钮，进入到活动B.下面

示例代码：

public class MyFragment extends Fragment implements View.OnClickListener{ 

    ImageButton myButton; 
    View view; 

    @Nullable 
    @Override 
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { 
     view = inflater.inflate(R.layout.fragment_device, container, false); 

     myButton = (ImageButton) view.findViewById(R.id.myButton); 
     myButton.setOnClickListener(this); 

     return view; 
    } 


    @Override 
    public void onClick(View v){ 
     //do something 
    } 
} 

从我MainActivity：

public class MainActivity extends AppCompatActivity{ 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 

     FragmentManager fragmentManager = getFragmentManager(); 
     FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction(); 

     LinearLayout windowForMainActivity = (LinearLayout) findViewById(R.id.windowForMainActivity); 

     MyFragment myFragment1 = new MyFragment(); 
     fragmentTransaction.add(windowForMainActivity.getId(),myFragment1); 

     MyFragment myFragment2 = new MyFragment(); 
     fragmentTransaction.add(windowForMainActivity.getId(),myFragment2); 

     fragmentTransaction.commit(); 
    } 
} 

Answer 1

由于您已使课程实现了界面，因此在创建片段时，可以覆盖onClick。

MyFragment frag1 = new MyFragment() { 
    @Override 
    public void onClick(View v) { 
     Intent i = new Intent(MainActivity.this, ActivityA.class); 
     MainActivity.this.startActivity(i); 
    } 
}; 

MyFragment frag2 = new MyFragment() { 
    @Override 
    public void onClick(View v) { 
     Intent i = new Intent(MainActivity.this, ActivityB.class); 
     MainActivity.this.startActivity(i); 
    } 
}; 

当然，也有可能是更好的方式来做到这一点本身使用Bundle arguments，例如片段类中。

Answer 2

从您的活动首先将数据发送到片段这样

Bundle bundle = new Bundle(); 
bundle.putString("some_value", "ActivityA"); 
MyFragment myFragment1 = new MyFragment(); 
myFragment1.setArguments(bundle); 
fragmentTransaction.add(windowForMainActivity.getId(),myFragment1); 

Bundle bundle2 = new Bundle(); 
bundle2.putString("some_value", "ActivityB"); 
MyFragment myFragment2 = new MyFragment(); 
myFragment2.setArguments(bundle); 
fragmentTransaction.add(windowForMainActivity.getId(),myFragment2); 

，然后得到这样

String whichActivity; 

@Override 
public View onCreateView(LayoutInflater inflater, ViewGroup container, 
     Bundle savedInstanceState) { 
    whichActivity = getArguments().getString("some_value");  
    return inflater.inflate(R.layout.fragment, container, false); 
} 

@Override 
    public void onClick(View v){ 
     if(whichActivity.equals("ActivityA")){ 
      //code to start Activity A 
     }else{ 
     //code to start activity B 
     } 
} 

值