ViewFlipper左右滑动事件

新建一个继承Activity类的ViewFlipperActivity，并设置布局文件为：viewflipper.xml。

首先在布局文件中添加一个TextView，和一个ViewFlipper，并在ViewFlipper布局中添加2个LinearLayout,里面设置不同的背景颜色。

<?xmlversion="1.0"encoding="utf-8"?>

<LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical">

 

    <TextView

        android:id="@+id/viewflipper_tv01"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_gravity="center_horizontal"

        android:text="@string/show_information"

        android:textSize="22sp"/>

 

    <ViewFlipper

        android:id="@+id/viewflipper_viewflipper"

        android:layout_width="match_parent"

        android:layout_height="match_parent">

 

        <LinearLayout

            android:layout_width="match_parent"

            android:layout_height="match_parent"

            android:background="#FFFF0000">

        </LinearLayout>

 

        <LinearLayout

            android:layout_width="match_parent"

            android:layout_height="match_parent"

            android:background="#FF0000FF">

        </LinearLayout>

    </ViewFlipper>

 

</LinearLayout>

而后在Activity代码中，获取ViewFlipper对象，并通过onTouchListener()处理ViewFlipper显示的界面。

package lyx.feng.simpletextdemo;

......

public class ViewFlipperActivity extends Activityimplements OnTouchListener {

    private ViewFlipperviewFlipper = null;

    private TextViewtv = null;

 

    @Override

    protected void onCreate(Bundle savedInstanceState) {

       super.onCreate(savedInstanceState);

       super.setContentView(R.layout.viewflipper);

       this.viewFlipper = (ViewFlipper)super

              .findViewById(R.id.viewflipper_viewflipper);

       this.tv = (TextView)super.findViewById(R.id.viewflipper_tv01);

       this.viewFlipper.setOnTouchListener(this);

        this.viewFlipper.setInAnimation(AnimationUtils.loadAnimation(this,

              android.R.anim.fade_in));

        this.viewFlipper.setOutAnimation(AnimationUtils.loadAnimation(this,

              android.R.anim.fade_out));

    }

 

    @Override

    public boolean onTouch(View v, MotionEvent event) {

       int start = 0;

       int end = 0;

       switch (event.getAction()) {

       case MotionEvent.ACTION_DOWN:

           start = (int) event.getX();

           break;

       case MotionEvent.ACTION_UP:

           end = (int) event.getX();

           if (start - end > 10) {

              this.viewFlipper.showNext();

              this.tv.setText("next");

              // Toast.makeText(this, "next", Toast.LENGTH_SHORT).show();

           }

           if (start - end < 10) {

              this.viewFlipper.showPrevious();

              this.tv.setText("previous");

              // Toast.makeText(this, "previous", Toast.LENGTH_SHORT).show();

           }

           break;

       }

       return true;

    }

}