如何在Android中註冊多個監聽器？

Question

在iOS中，我可以註冊多個目標+動作事件處理程序，例如像這樣的按鈕：

@implementation ViewController 

- (void)viewDidLoad { 
    [super viewDidLoad]; 

    UIButton *button = [[UIButton alloc] initWithFrame:CGRectMake(20, 40, 300, 40)]; 
    [button setBackgroundColor:[UIColor blueColor]]; 
    [button setTitle:@"Click Me!" forState:UIControlStateNormal]; 
    [button addTarget:self action:@selector(handler1) forControlEvents:UIControlEventTouchUpInside]; 
    [button addTarget:self action:@selector(handler2) forControlEvents:UIControlEventTouchUpInside]; 
    [self.view addSubview:button]; 
} 

- (void)handler1 { 
    NSLog(@"Click handler 1"); // FIRES! 
} 

- (void)handler2 { 
    NSLog(@"Click handler 2"); // FIRES! 
} 

@end 

我想實現的Java/Android的類似的東西，遺憾的是這不會工作至今爲第一個監聽被第二取代：

public class MainActivity extends AppCompatActivity { 

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

    Button button = (Button) findViewById(R.id.button); 
    button.setText("Click Me!"); 
    button.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View v) { 
     Log.d("Test", "Click handler 1"); // DOES NOT FIRE! 
     } 
    }); 
    button.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View v) { 
     Log.d("Test", "Click handler 2"); // FIRES! 
     } 
    }); 

    } 
} 

我欣賞任何幫助&建議在Java/Android中實現相同！

Answer 1

難道不同樣的方式處理在Android和它只是簡單的創建兩個方法，因爲這樣：

button.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View v) { 
     method1(); 
     method2(); 
     } 
    }); 

    private void method1(){ 
    Log.d("Test", "Click handler 1"); 
    } 

    private void method2(){ 
    Log.d("Test", "Click handler 2"); 
    } 

由於docs爲View.OnClickListener狀態：

註冊一個回調是當此視圖被上下文單擊時調用。如果視圖不是上下文可點擊的，則它變爲上下文可點擊的

多個回調默認情況下不會實現，但您可以自己實現。

Answer 2

閱讀RxJava它是未來:) http://reactivex.io/

ViewObservable.clicks((Button) getActivity().findViewById(R.id.comment_btn)) 
      .compose(lifecycleMainObservable().<OnClickEvent>bindLifecycle()) 
      .subscribe(new Action1<OnClickEvent>() { 
       @Override 
       public void call(OnClickEvent onClickEvent) { 
        Log.d("Button click", "Button 1 click"); 
       } 
      }); 

ViewObservable.clicks((Button) getActivity().findViewById(R.id.comment_btn)) 
      .compose(lifecycleMainObservable().<OnClickEvent>bindLifecycle()) 
      .subscribe(new Action1<OnClickEvent>() { 
       @Override 
       public void call(OnClickEvent onClickEvent) { 
        Log.d("Button click", "Button 2 click"); 
       } 
      });