Android ViewFlipper简单应用

时间:2021-05-21

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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