使用兩個SimpleOnGestureListener

我想實現一個應用程序，其中兩個計數器（或更多）的上下滑動遞增和遞減。因此，我的想法是「主要活動」使用兩個自定義視圖（稱爲CounterView.java）。該應用程序顯示兩個計數器，但交互不能與SimpleOnGestureListener一起使用。下面是代碼。 activity_main.xml中：使用兩個SimpleOnGestureListener

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:id="@+id/RelativeLayout1" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:gravity="top" 
    android:orientation="vertical" 
    android:background="@color/opaque_black" 
    tools:context=".MainActivity" > 

<de.thomaslaemmlein.counter.CounterView 
    android:id="@+id/counterView1" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_alignParentLeft="true" 
    android:layout_alignParentTop="true" > 
</de.thomaslaemmlein.counter.CounterView> 

<de.thomaslaemmlein.counter.CounterView 
    android:id="@+id/counterView2" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_marginLeft="10dp" 
    android:layout_toRightOf="@id/counterView1" > 
</de.thomaslaemmlein.counter.CounterView>

MainActivity.java：

package de.thomaslaemmlein.counter; 


import android.os.Bundle; 
import android.app.Activity; 
import android.util.Log; 

public class MainActivity extends Activity { 

    public MainActivity() 
    {  
     Log.d("MainActivity", "Constructor"); 
    } 

    protected void onDestroy() 
    { 
     Log.d("MainActivity", "onDestroy"); 
     super.onDestroy(); 
    } 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     Log.d("MainActivity", "onCreate"); 

     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 
    } 

}

counter_view.xml：

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" > 

    <TextView 
     android:id="@+id/counterTextView" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:background="@color/opaque_white" 
     android:includeFontPadding="false" 
     android:text="0" 
     android:textAppearance="?android:attr/textAppearanceLarge" 
     android:textSize="250sp" /> 

</RelativeLayout>

CounterView.java：

package de.thomaslaemmlein.counter; 


import android.content.Context; 
import android.util.AttributeSet; 
import android.util.Log; 
import android.view.GestureDetector; 
import android.view.GestureDetector.SimpleOnGestureListener; 
import android.view.LayoutInflater; 
import android.view.MotionEvent; 
import android.view.View; 
import android.widget.LinearLayout; 
import android.widget.TextView; 

public class CounterView extends LinearLayout { 
    TextView m_CounterTextView; 

    private int m_CurrentNumber; 

    private int m_MaximalNumber = 99; 

    public CounterView(Context context) { 
     super(context); 
     init(); 
    } 

    public CounterView(Context context, AttributeSet attr) 
    { 
     super(context, attr); 
     init(); 
    } 

    private void init() 
    { 
     Log.d("CounterView", "init"); 

     LayoutInflater inflater = LayoutInflater.from(getContext()); 
     View root = inflater.inflate(R.layout.counter_view, this, false); 

     m_CurrentNumber = 0; 

     m_CounterTextView = (TextView)root.findViewById(R.id.counterTextView); 

     m_CounterTextView.setText(Integer.toString(m_CurrentNumber)); 

     addView(root); 
    } 

    @Override 
    public boolean onTouchEvent(MotionEvent event) { 
     return gestureDetector.onTouchEvent(event); 
    } 

    SimpleOnGestureListener simpleOnGestureListener 
     = new SimpleOnGestureListener(){ 


     @Override 
     public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, 
     float velocityY) { 
     String swipe = ""; 
     float sensitvity = 50; 

     // TODO Auto-generated method stub 
     if((e1.getX() - e2.getX()) > sensitvity){ 
     swipe += "Swipe Left;"; 
     }else if((e2.getX() - e1.getX()) > sensitvity){ 
     swipe += "Swipe Right;"; 
     }else{ 
     swipe += ";"; 
     } 

     if((e1.getY() - e2.getY()) > sensitvity){ 
     swipe += "Swipe Up;"; 
     if (m_CurrentNumber < m_MaximalNumber) 
     { 
      m_CurrentNumber++; 
      m_CounterTextView.setText(Integer.toString(m_CurrentNumber));  
     } 
     }else if((e2.getY() - e1.getY()) > sensitvity){ 
      if (m_CurrentNumber > 0) 
      { 
       m_CurrentNumber--; 
       m_CounterTextView.setText(Integer.toString(m_CurrentNumber)); 
      } 
     swipe += "Swipe Down;"; 
     }else{ 
     swipe += ";"; 
     } 

     Log.d("onFling", swipe); 

     return super.onFling(e1, e2, velocityX, velocityY); 
     } 
     }; 

     GestureDetector gestureDetector 
     = new GestureDetector(simpleOnGestureListener); 

}

方法「onFling」將不會被調用。

有沒有人幫助我在這種情況下？

來源

2012-12-28 ThomasL.

更換的onTouchEvent用，

@Override 
public boolean onTouchEvent(MotionEvent event) { 
gestureDetector.onTouchEvent(event); 

return true; // This function must return true for onFling() to be called. 
}

來源

2012-12-28 19:59:32 66CLSjY

使用兩個SimpleOnGestureListener

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