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MainActivity了初始化控件。
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context="com.example.administrator.chinesezodiacapplication.MainActivity">
<ImageView
android:id="@+id/imgNet"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:src="@drawable/zi"
/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<Button
android:id="@+id/btnStart"
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="wrap_content"
android:text="开始播放"
android:textSize="16dp"
/>
<Button
android:id="@+id/btnPause"
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="wrap_content"
android:text="暂停播放"
android:textSize="16dp"
/>
</LinearLayout>
</LinearLayout>
public class MainActivity extends AppCompatActivity {
private Button btnStart;
private Button btnPause;
private ImageView imageView;
private Thread thread;
private Handler handler;
private int MSG_IMG_CHANGE = 1001;
private boolean isPause = true;
private String url1 ="https://qqpublic.qpic.cn/qq_public/0/0-2366261503-87FFA35D0792FEC1048083429D12687E/900";
private String url2 ="https://qqpublic.qpic.cn/qq_public/0/0-3097962509-F7CFDDBDE07DAFAC9568FE9ABFE7153F/900";
private String url3 ="https://qqpublic.qpic.cn/qq_public/0/0-2851260680-186F3C52C3DDCB6BBAEE05AEF83D89DA/900?tp=webp";
private String url4 ="https://qqpublic.qpic.cn/qq_public/0/0-2738303735-B0FD9ABA222886FCFA325D1AD4DB6156/900?tp=webp";
private String url5 ="https://qqpublic.qpic.cn/qq_public/0/0-2776144047-CD42FE909EDD232753D51C54329D7BA6/900?tp=webp";
private String url6 ="https://qqpublic.qpic.cn/qq_public/0/0-2628537209-CFBA5C4C446CC492775303478F5825A2/900?tp=webp";
private String url7 ="https://qqpublic.qpic.cn/qq_public/0/0-3079871717-6B0B52BDE99EB32E481F049C077A3E6D/900?tp=webp";
private String url8 ="https://qqpublic.qpic.cn/qq_public/0/0-2906573180-BB6E88099D4DB7C27354591D8620A6BB/900?tp=webp";
private String url9 ="https://qqpublic.qpic.cn/qq_public/0/0-2365621724-14715472ACEA17237F988207A7EA862F/900?tp=webp";
private String url10 ="https://qqpublic.qpic.cn/qq_public/0/0-2362096419-A1371DB9F39E23B07061E1E4D5E4B995/900?tp=webp";
private String url11 ="https://qqpublic.qpic.cn/qq_public/0/0-2473426908-4C9010D824EF29E08BF20C6E32D3502A/900?tp=webp";
private String url12="https://qqpublic.qpic.cn/qq_public/0/0-3067218096-F5A001F06E9D0C9B91E15DB4DFF5FB7B/900?tp=webp";
private String[] imgUrls ={url1,url2,url3,url4,url5,url6,url7,url8,url9,url10,url11,url12};
private int index = 0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initViews();
initThread();
initHandler();
}
private void initHandler() {
handler = new Handler(new Handler.Callback() {
@Override
public boolean handleMessage(Message message) {
if(message.what ==MSG_IMG_CHANGE){
Glide.with(MainActivity.this).load(imgUrls[message.arg1]).into(imageView);
return true;
}
return false;
}
});
}
private void initThread() {
new Thread(new Runnable(){
@Override
public void run() {
while (true){
if(!isPause){
index =(index+1)%imgUrls.length;
Message msg = Message.obtain();
msg.what = MSG_IMG_CHANGE;
msg.arg1 =index;
handler.sendMessage(msg);
}
try {
Thread.sleep(2000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}).start();
}
private void initViews() {
initImageView();
initButton();
}
private void initButton() {
btnStart = (Button) findViewById(R.id.btnStart);
btnStart.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
isPause = false;
}
});
btnPause = (Button) findViewById(R.id.btnPause);
btnPause.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
isPause = true;
}
});
}
private void initImageView() {
imageView = (ImageView) findViewById(R.id.imgNet);
}
}
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