• ViewFlipper


    activity_main.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:orientation="vertical"
        tools:context=".activity.MainActivity">
        <ViewFlipper
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:id="@+id/viewFlipper">
        </ViewFlipper>
    </LinearLayout>

    left_in.xml

    <?xml version="1.0" encoding="utf-8"?>
    <set xmlns:android="http://schemas.android.com/apk/res/android">
        <translate
            android:duration="1500"
            android:fromXDelta="100%p"
            android:toXDelta="0"/>
    
        <alpha
            android:duration="1500"
            android:fromAlpha="0.1"
            android:toAlpha="1.0"/>
    
    </set>

    left_out.xml

    <?xml version="1.0" encoding="utf-8"?>
    <set xmlns:android="http://schemas.android.com/apk/res/android">
        <translate
            android:duration="1500"
            android:fromXDelta="0"
            android:toXDelta="-100%p"/>
    
        <alpha
            android:duration="1500"
            android:fromAlpha="1.0"
            android:toAlpha="0.1"/>
    </set>

    right_in.xml

    <?xml version="1.0" encoding="utf-8"?>
    <set xmlns:android="http://schemas.android.com/apk/res/android">
        <translate
            android:duration="1500"
            android:fromXDelta="-100%p"
            android:toXDelta="0"/>
    
        <alpha android:duration="1500"
            android:fromAlpha="0.1"
            android:toAlpha="1.0"/>
    </set>

    right_out.xml

    <?xml version="1.0" encoding="utf-8"?>
    <set xmlns:android="http://schemas.android.com/apk/res/android">
        <translate
            android:duration="1500"
            android:fromXDelta="0"
            android:toXDelta="100%p"/>
    
        <alpha
            android:duration="1500"
            android:fromAlpha="1.0"
            android:toAlpha="0.1"/>
    
    </set>

    MainActivity.java

    package com.pingyijinren.helloworld.activity;
    
    import android.content.Intent;
    import android.support.v7.app.AppCompatActivity;
    import android.os.Bundle;
    import android.view.GestureDetector;
    import android.view.MotionEvent;
    import android.widget.ImageView;
    import android.widget.ViewFlipper;
    import com.pingyijinren.helloworld.R;
    
    public class MainActivity extends AppCompatActivity {
        private ViewFlipper viewFlipper;
        private GestureDetector gestureDetector;
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
    
            viewFlipper=(ViewFlipper)findViewById(R.id.viewFlipper);
            for(int i=0;i<10;i++){
                ImageView imageView=new ImageView(this);
                if(i%2==0){
                    imageView.setImageResource(R.drawable.first_image);
                }
                else{
                    imageView.setImageResource(R.drawable.second_image);
                }
                imageView.setScaleType(ImageView.ScaleType.FIT_CENTER);
                viewFlipper.addView(imageView);
            }
            gestureDetector=new GestureDetector(this, new GestureDetector.OnGestureListener() {
                @Override
                public boolean onDown(MotionEvent e) {
                    return false;
                }
    
                @Override
                public void onShowPress(MotionEvent e) {
    
                }
    
                @Override
                public boolean onSingleTapUp(MotionEvent e) {
                    return false;
                }
    
                @Override
                public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {
                    return false;
                }
    
                @Override
                public void onLongPress(MotionEvent e) {
    
                }
    
                @Override
                public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
                    if(e2.getX()-e1.getX()>120){
                        if(viewFlipper.getDisplayedChild()>0){
                            viewFlipper.setInAnimation(MainActivity.this,R.anim.right_in);
                            viewFlipper.setOutAnimation(MainActivity.this,R.anim.right_out);
                            viewFlipper.showPrevious();
                        }
                    }
                    if(e2.getX()-e1.getX()<-120){
                        if(viewFlipper.getDisplayedChild()==9){
                            startActivity(new Intent(MainActivity.this,SecondActivity.class));
                        }
                        else{
                            viewFlipper.setOutAnimation(MainActivity.this, R.anim.left_out);
                            viewFlipper.setInAnimation(MainActivity.this, R.anim.left_in);
                            viewFlipper.showNext();
                        }
                    }
                    return false;
                }
            });
        }
    
        @Override
        public boolean onTouchEvent(MotionEvent event) {
            return gestureDetector.onTouchEvent(event);
    
        }
    }
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  • 原文地址:https://www.cnblogs.com/zqxLonely/p/5555577.html
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