Android觸屏滑動事件總結

螢幕切換指的是在同一個Activity內螢幕見的切換。

通過GestureDetector、OnGestureListener實現滑屏事件。ViewFlipper是繼承至FrameLayout的，所以它是一個Layout裡面可以放置多個View。樣本中第一頁僅放了一個按鈕BUTTON，向下滑屏時，每頁都只放了一個TEXTVIEW。

頁面：

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<?xml version="1.0"encoding="utf-8"?> 
<LinearLayout xmlns:Android="http://schemas.android.com/apk/res/android" 
   android:orientation="vertical" 
   android:layout_width="fill_parent" 
   android:layout_height="fill_parent" 
   > 
   <ViewFlipperandroid:id="@+id/ViewFlipper01" 
       android:layout_width="fill_parent"android:layout_height="fill_parent"> 
   </ViewFlipper> 
</LinearLayout> 
 

Activity代碼:

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package com.yfz; 
import android.app.Activity; 
import android.os.Bundle; 
import android.util.Log; 
import android.view.GestureDetector; 
import android.view.MotionEvent; 
import android.view.View; 
importandroid.view.GestureDetector.OnGestureListener; 
import android.view.ViewGroup.LayoutParams; 
importandroid.view.animation.AnimationUtils; 
import android.widget.Button; 
import android.widget.ExpandableListView; 
import android.widget.TextView; 
import android.widget.ViewFlipper; 
public class Flip extends Activity implements OnGestureListener{ 
     
    privateGestureDetector detector; 
    privateViewFlipper flipper; 
     
    
   @Override 
    public voidonCreate(Bundle savedInstanceState) { 
       super.onCreate(savedInstanceState); 
       setContentView(R.layout.main); 
         
       flipper
= (ViewFlipper)this.findViewById(R.id.ViewFlipper01); 
         
       flipper.addView(addButtonByText("按鈕"),new
LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT)); 
         
       detector
= new GestureDetector(this); 
   } 
     
    public ViewaddButtonByText(String text){ 
       Button
btn = newButton(this);   
       btn.setText(text);   
       returnbtn;   
   }   
    public ViewaddTextByText(String text){ 
       TextView
tv = newTextView(this);   
       tv.setText(text);   
       tv.setGravity(1);   
       returntv;   
   }   
     
   @Override 
    publicboolean onTouchEvent(MotionEvent event) { 
       Log.i("Fling",
"Activity onTouchEvent!"); 
       return
this.detector.onTouchEvent(event); 
   } 
   @Override