<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=".MainActivity" ><ImageSwitcherandroid:id="@+id/imageswitcher"android:layout_width="200dp"android:layout_height="200dp"android:layout_gravity="center_horizontal" /><RelativeLayoutandroid:layout_width="match_parent"android:layout_height="match_parent"android:orientation="horizontal" ><Buttonandroid:id="@+id/back"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_alignParentLeft="true"android:text="back" /><Buttonandroid:id="@+id/forward"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_alignParentRight="true"android:text="forward" /></RelativeLayout></LinearLayout>Main_activity.java:
package com.example.android_imageswitcher1;import android.app.Activity;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.ImageSwitcher;import android.widget.ImageView;import android.widget.ViewSwitcher.ViewFactory;public class MainActivity extends Activity implements ViewFactory,OnClickListener {ImageSwitcher mImageSwitcher = null;Button btn1, btn2;int index = 0;int[] resId = new int[9];@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);mImageSwitcher = (ImageSwitcher) this.findViewById(R.id.imageswitcher);btn1 = (Button) this.findViewById(R.id.back);btn2 = (Button) this.findViewById(R.id.forward);btn1.setOnClickListener(this);btn2.setOnClickListener(this);mImageSwitcher.setFactory(this);mImageSwitcher.setInAnimation(this, android.R.anim.slide_in_left);mImageSwitcher.setOutAnimation(this, android.R.anim.slide_out_right);initResources();if (resId.length > 0) {mImageSwitcher.setImageResource(resId[0]);}}public void initResources() {resId[0] = R.drawable.adobe;resId[1] = R.drawable.android;resId[2] = R.drawable.circle;resId[3] = R.drawable.digg;resId[4] = R.drawable.flower;resId[5] = R.drawable.gmail;resId[6] = R.drawable.imdb;resId[7] = R.drawable.photo;resId[8] = R.drawable.point;}@Overridepublic View makeView() {return new ImageView(MainActivity.this);}@Overridepublic void onClick(View view) {int action = view.getId();switch (action) {case R.id.back:index--;if (index < 0) {index = resId.length - 1;}mImageSwitcher.setImageResource(resId[index]);break;case R.id.forward:index++;if (index > resId.length - 1) {index = 0;}mImageSwitcher.setImageResource(resId[index]);break;default:break;}}}实现的效果如下:
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