二、准备好5张看着顺眼的图片,放在res\drawable目录下: java
三、在main.xml中添加一个ImageSwitcher组件: android
<?xml version="1.0" encoding="utf-8"?> <linearlayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent"> <imageswitcher android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/imageSwitcher1"> </imageswitcher> </linearlayout>四、在MainActivity.java中的代码以下:
package basic.android.lesson45; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.view.Window; import android.view.WindowManager; import android.view.animation.AnimationUtils; import android.widget.ImageSwitcher; import android.widget.ImageView; import android.widget.ViewSwitcher.ViewFactory; public class MainActivity extends Activity { //当前显示的图片索引 private int index; //图片数组 private int[] images = { R.drawable.image1, R.drawable.image2, R.drawable.image3, R.drawable.image4, R.drawable.image5 }; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); //全屏设置 requestWindowFeature(Window.FEATURE_NO_TITLE); getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); setContentView(R.layout.main); //获得ImageSwitcher对象 final ImageSwitcher is = (ImageSwitcher) findViewById(R.id.imageSwitcher1); //实现并设置工厂内部接口的makeView方法,用来显示视图。 is.setFactory(new ViewFactory() { @Override public View makeView() { return new ImageView(MainActivity.this); } }); //设置图片来源 is.setImageResource(images[index]); //设置点击监听器 is.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { //点击会切换图片 index++; if (index >= images.length) { index = 0; } is.setImageResource(images[index]); } }); //设置切入动画 is.setInAnimation(AnimationUtils.loadAnimation(getApplicationContext(), android.R.anim.slide_in_left)); //设置切出动画 is.setOutAnimation(AnimationUtils.loadAnimation(getApplicationContext(), android.R.anim.slide_out_right)); } }