ImageSwitcher图片切换的简单用例

ImageSwitcher的原理：ImageSwitcher有两个子View：ImageView，当左右滑动的时候，就在这两个ImageView之间来回切换来显示图片

实现左右滑动切换图片

BaseActivity

package com.shaoxin.myimageswitcher;

import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;

/**
 * Created by shaoxin on 2016/12/4.
 */

public abstract class BaseActivity extends AppCompatActivity {
    public abstract void init();

    public abstract void listener();

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        init();
        listener();
    }
}

MainActivity

package com.shaoxin.myimageswitcher;

import android.view.MotionEvent;
import android.view.View;
import android.view.animation.AnimationUtils;
import android.widget.ImageSwitcher;
import android.widget.ImageView;
import android.widget.ViewSwitcher;

public class MainActivity extends BaseActivity{
    private ImageSwitcher imageSwitcher;
    private ViewSwitcher.ViewFactory factory;
    private int[] inid = {R.drawable.a, R.drawable.b, R.drawable.c, R.drawable.d};
    private int index = 0;

    @Override
    public void init() {
        setContentView(R.layout.activity_main);
        imageSwitcher = (ImageSwitcher) findViewById(R.id.imageSwitcher);
    }

    @Override
    public void listener() {
        factory = new ViewSwitcher.ViewFactory() {
            @Override
            public View makeView() {
                ImageView imageView = new ImageView(MainActivity.this);
                return imageView;
            }
        };
        imageSwitcher.setFactory(factory);
        imageSwitcher.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                imageSwitcher.setInAnimation(AnimationUtils.
                        loadAnimation(MainActivity.this, android.R.anim.fade_in));
                imageSwitcher.setOutAnimation(AnimationUtils.
                        loadAnimation(MainActivity.this, android.R.anim.fade_out));
                imageSwitcher.setImageResource(inid[index]);
                index++;
                if (index == inid.length)
                    index = 0;
                return false;
            }
        });
    }

}

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:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context="com.shaoxin.myimageswitcher.MainActivity">

    <ImageSwitcher
        android:id="@+id/imageSwitcher"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />
</LinearLayout>