简单的自动轮播图

public classAutoActivityextendsAppCompatActivity {

privateImageViewauto_image;

//图片数量

private inti=3;

//图片数组

private int[]image={

R.mipmap.mg5,R.mipmap.mg4,R.mipmap.mg3

};

@Override

protected voidonCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_auto);

initView();

}

Runnablerunnable=newRunnable() {

@Override

public voidrun() {

if(i>0){

i--;

auto_image.setScaleType(ImageView.ScaleType.CENTER_CROP);

auto_image.setImageResource(image[i]);

//耗时操作

auto_image.postDelayed(runnable,1500);

}

}

};

private voidinitView() {

auto_image= (ImageView) findViewById(R.id.auto_image);

//耗时开始

auto_image.post(runnable);

}