达内android简单相册查看器

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1、达内Android简单相册查看器1、创建工程：HandlerTest022、准备程序中需要的图片资源，将图片资源存放在res/drawable-mdpi目录下3、编写布局文件main.xml，代码如下：?123456789101112131415161718

3、dth="fill_parent"android:src="@drawable/a"/>4、开发换图的线程。在目录下新建一个MyThread.java文件。代码如下：?1234567packagecom.handlerTest02;publicclassMyThreadextendsThread{HandlerTest02handlerTestActivity;intwhat=1;publicMyThread(HandlerTest02handlerTestActivity){this.handl

4、erTestActivity=handlerTestActivity;8910111213141516171819202122}@Overridepublicvoidrun(){while(true){//发送消息handlerTestActivity.myHandler.sendEmptyMessage((what++)%7);try{Thread.sleep(2000);//休眠两秒钟}catch(Exceptione){e.printStackTrace();//打印异常消息}}}}5、开发主逻辑代码。代码如下：?123

5、4567891011packagecom.handlerTest02;importandroid.app.Activity;importandroid.os.Bundle;importandroid.os.Handler;importandroid.os.Message;importandroid.widget.ImageView;publicclassHandlerTest02extendsActivity{/**Calledwhentheactivityisfirstcreated.*/ImageViewmyImageVi

6、ew;HandlermyHandler=newHandler(){publicvoidhandleMessage(Messagemsg){12131415161718192021222324252627282930313233switch(msg.what){case0:myImageView.setImageResource(R.drawable.a);break;case1:myImageView.setImageResource(R.drawable.b);break;case2:myImageView.setImage

7、Resource(R.drawable.c);break;case3:myImageView.setImageResource(R.drawable.d);break;case4:myImageView.setImageResource(R.drawable.e);break;case5:myImageView.setImageResource(R.drawable.f);break;case6:myImageView.setImageResource(R.drawable.g);break;}super.handleMess

8、age(msg);}};@OverridepublicvoidonCreate(BundlesavedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.main);myImage