Android开发实现图片切换APP

本文实例为大家分享了Android开发实现图片切换APP的具体代码，供大家参考，具体内容如下

本次介绍的是关于图片切换的APP，这里实现了两种切换效果；
不同的效果针对不同的情况，两种效果的代码都会介绍：

代码-布局：

main.xml的代码：

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
 xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:tools="http://schemas.android.com/tools"
 xmlns:app="http://schemas.android.com/apk/res-auto"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 tools:context=".MainActivity">

 <ImageSwitcher
 android:id="@+id/is_1"
 android:layout_width="match_parent"
 android:layout_height="243dp"
 android:layout_marginTop="68dp"
 app:layout_constraintEnd_toEndOf="parent"
 app:layout_constraintHorizontal_bias="0.0"
 app:layout_constraintStart_toStartOf="parent"
 app:layout_constraintTop_toTopOf="parent" />

 <LinearLayout
 android:id="@+id/linearLayout"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:layout_marginTop="68dp"
 android:orientation="horizontal"
 android:paddingTop="15dp"
 app:layout_constraintEnd_toEndOf="parent"
 app:layout_constraintStart_toStartOf="parent"
 app:layout_constraintTop_toBottomOf="@+id/is_1">

 <Button
  android:id="@+id/btn_previous"
  style="?android:attr/borderlessButtonStyle"
  android:layout_width="0dip"
  android:layout_height="wrap_content"
  android:layout_marginLeft="15dp"
  android:layout_marginRight="15dp"
  android:layout_weight="1"
  android:background="@drawable/shape_button_main"
  android:text="下一张"
  android:textColor="#ffffff"
  android:textSize="18dp" />

 <Button
  android:id="@+id/btn_next"
  style="?android:attr/borderlessButtonStyle"
  android:layout_width="0dip"
  android:layout_height="wrap_content"
  android:layout_marginLeft="15dp"
  android:layout_marginRight="15dp"
  android:layout_weight="1"
  android:background="@drawable/shape_button_main"
  android:text="上一张"
  android:textColor="#ffffff"
  android:textSize="18dp" />
 </LinearLayout>

 <Button
 android:id="@+id/btn_3"
 android:layout_width="176dp"
 android:layout_height="80dp"
 android:layout_marginTop="8dp"
 android:layout_marginBottom="16dp"
 android:background="@drawable/shape_button_main"
 android:text="另外一种效果"
 android:textSize="20dp"
 app:layout_constraintBottom_toBottomOf="parent"
 app:layout_constraintEnd_toEndOf="parent"
 app:layout_constraintStart_toStartOf="parent"
 app:layout_constraintTop_toBottomOf="@+id/linearLayout" />

</android.support.constraint.ConstraintLayout>

mainactivity的代码：

package com.example.wuluo.yanqi;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageSwitcher;
import android.widget.ImageView;
import android.widget.ViewSwitcher;

public class MainActivity extends AppCompatActivity implements View.OnClickListener,ViewSwitcher.ViewFactory{

 private ImageSwitcher is_1;
 private Button btn_next;
 private Button btn_previous;
 private Button btn_3;
 private int image[]={R.drawable.tian1,R.drawable.tian2,R.drawable.tian3,R.drawable.tian4};//图片的id数组
 private int imageIndex=0;//图片显示序列号

 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_main);
 is_1=(ImageSwitcher) findViewById(R.id.is_1);
 btn_next=(Button) findViewById(R.id.btn_next);
 btn_previous=(Button) findViewById(R.id.btn_previous);
 btn_3=(Button)findViewById(R.id.btn_3);

 btn_previous.setOnClickListener(this);
 btn_next.setOnClickListener(this);
 btn_3.setOnClickListener(this);
 init(); //设置Factory
 }
 @Override
 public void onClick(View view) {
 if (view.getId()==R.id.btn_next){
  imageIndex++;
  if(imageIndex>3){
  imageIndex=0;
  }
  is_1.setInAnimation(this,R.anim.left_in);
  is_1.setOutAnimation(this,R.anim.right_out);
 }else if(view.getId()==R.id.btn_previous){
  imageIndex--;
  if(imageIndex<0){
  imageIndex=image.length-1;
  }
  is_1.setInAnimation(this,R.anim.right_in);
  is_1.setOutAnimation(this,R.anim.left_out);
 }else if(view.getId()==R.id.btn_3){
  Intent intent=new Intent();
  intent.setClass(this,other2.class);
  startActivity(intent);

 }
 is_1.setImageResource(image[imageIndex]);
 }

 @Override
 public View makeView() {//实现viewFactory接口.生成imageview
 ImageView imageView=new ImageView(this);
 return imageView;
 }
 private void init(){//初始化imageSwitch
 is_1.setFactory(this);
 is_1.setImageResource(image[imageIndex]);
 }

}

ViewPagerAdapter的代码：

package com.example.wuluo.yanqi;


/**
 * Created by wuluo on 2018/12/21
 */
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.View;
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