Android ViewFlipper 简单应用

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Android ViewFlipper 简单应用

废话不多说，直接看代码

activity_guide.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:id="@+id/guide" tools:context="com.example.weijian.homeletterapplication.GuideActivity">    <ViewFlipper        android:id="@+id/Main_ViewFlipper"        android:layout_width="match_parent"        android:layout_height="match_parent" >    </ViewFlipper></LinearLayout>

GuideActivity.java

import android.content.Intent;import android.support.v7.app.ActionBar;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.GestureDetector;import android.view.MotionEvent;import android.view.View;import android.view.WindowManager;import android.widget.ImageView;import android.widget.ViewFlipper;public class GuideActivity extends AppCompatActivity implements GestureDetector.OnGestureListener {    private GestureDetector detector;    private ViewFlipper flipper;     @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_guide);        //隐藏标题栏        ActionBar actionBar = getSupportActionBar();        actionBar.hide();        detector = new GestureDetector(this);        flipper = (ViewFlipper) this.findViewById(R.id.Main_ViewFlipper);        flipper.addView(addImageView(R.mipmap.guide1));        flipper.addView(addImageView(R.mipmap.guide2));        flipper.addView(addImageView(R.mipmap.guide3));     }    private View addImageView(int id) {        ImageView iv = new ImageView(this);         //ImageView拉伸，充满整个ViewFlipper        iv.setScaleType(ImageView.ScaleType.FIT_XY);        iv.setImageResource(id);        return iv;    }    @Override    public boolean onTouchEvent(MotionEvent event) {        // TODO Auto-generated method stub        return this.detector.onTouchEvent(event);    }    @Override    public boolean onDown(MotionEvent e) {        // TODO Auto-generated method stub         return false;    }    @Override    public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,                           float velocityY) {         if (e1.getX() - e2.getX() > 120) {            this.flipper.showNext();        }        if (e1.getX() - e2.getX() < -120) {            this.flipper.showPrevious();        }        return false;    }    @Override    public void onLongPress(MotionEvent e) {        // TODO Auto-generated method stub    }    @Override    public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX,                            float distanceY) {        // TODO Auto-generated method stub        return false;    }    @Override    public void onShowPress(MotionEvent e) {        // TODO Auto-generated method stub    }    @Override    public boolean onSingleTapUp(MotionEvent e) {        // TODO Auto-generated method stub        return false;    }}

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