动态切换view视图viewflipper组件用法

个人理解viewflipper，他其实就是切换view视图很方便而已，在做广告的时候有利用的价值，它可以自己来进行图片的每隔多长时间来进行切换

Viewflipper是一个组件，可以在transitions中找到

ViewFlipper可以添加任意view对象，包括图片，文本，按钮，listview等

示例代码：

import android.app.Activity; 
import android.os.Bundle; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.view.ViewGroup.LayoutParams; 
import android.view.animation.AnimationUtils; 
import android.widget.Button; 
import android.widget.ImageView; 
import android.widget.TextView; 
import android.widget.ViewFlipper; 
public class ViewFlipperTest extends Activity { 
    private Button previous, next; 
    private ViewFlipper flipper; 
    /** Called when the activity is first created. */
    @Override 
    public void onCreate(Bundle savedInstanceState) { 
        super.onCreate(savedInstanceState); 
        setContentView(R.layout.main); 
        initiaView(); 
        flipper.addView(addButtonByText("Start"),  
                new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT)); 
        flipper.addView(addTextByText("Gutouwang")); 
        flipper.addView(addImageById(R.drawable.food_gutouwang)); 
        flipper.addView(addTextByText("Fushan Liaoli")); 
        flipper.addView(addImageById(R.drawable.food_foshanliaoli)); 
        flipper.addView(addButtonByText("End"),  
                new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT)); 
    } 
    /** 
     * Initialize view 
     */
    private void initiaView(){ 
        previous = (Button) findViewById(R.id.btnPrevious); 
        next = (Button) findViewById(R.id.btnNext); 
        flipper = (ViewFlipper) findViewById(R.id.flipper); 
        flipper.setInAnimation(AnimationUtils.loadAnimation(this, 
                android.R.anim.fade_in)); 
        flipper.setOutAnimation(AnimationUtils.loadAnimation(this, 
                android.R.anim.fade_out)); 
        previous.setOnClickListener(listener); 
        next.setOnClickListener(listener); 
    } 
    private OnClickListener listener = new OnClickListener(){ 
        public void onClick(View v) { 
            // TODO Auto-generated method stub 
            switch(v.getId()){ 
            case R.id.btnPrevious: 
                flipper.showPrevious(); 
                break; 
            case R.id.btnNext: 
                flipper.showNext(); 
                break; 
            } 
        } 
    }; 
    public View addTextByText(String text){ 
            TextView tv = new TextView(this); 
            tv.setText(text); 
            tv.setGravity(1); 
            return tv; 
    } 
    public View addImageById(int id){ 
        ImageView iv = new ImageView(this); 
        iv.setImageResource(id); 
        return iv; 
    } 
    public View addButtonByText(String text){ 
        Button btn = new Button(this); 
        btn.setText(text); 
        return btn; 
    } 
}

main.xml

<?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"
    > 
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:orientation="horizontal"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        > 
        <Button 
            android:id="@+id/btnPrevious"  
            android:layout_width="wrap_content" 
            android:layout_height="wrap_content" 
            android:layout_marginRight="5dip"
            android:text="Previous"
            /> 
        <Button 
            android:id="@+id/btnNext"  
            android:layout_width="wrap_content" 
            android:layout_height="wrap_content" 
            android:layout_marginLeft="5dip"
            android:text="Next"
            /> 
    </LinearLayout> 
    <ViewFlipper   
        android:id="@+id/flipper"
        android:layout_width="fill_parent" 
        android:layout_height="fill_parent" 
        android:gravity="center"
        > 
    </ViewFlipper> 
</LinearLayout>

增加以下处理可以解决触摸button，listview等view上滑动的问题

@Override 
public boolean dispatchTouchEvent(MotionEvent ev){ 
  this.detector.onTouchEvent(ev);//在这里先处理下你的手势左右滑动事件 
return super.dispatchTouchEvent(ev); 
}