The year before last, I don’t know how many college students became victims of "a gift". I also experienced it myself, but I didn’t get the job. Instead, I witnessed the deaths of the people around me. Last year, the O fruit milk incident was all the rage. At that time, someone got the source code through decompilation and found that it was written in Lua. I happened to be learning Android recently, and I want to reproduce it through java. As a beginner, it is still a bit difficult. Fortunately, I saw that some big guys had already written it first, so I used it to make a slight modification. By the way, I can prank my friends.
Original link: https://www.lanzoui.com/b0dw9plxe
I replaced the background music with Stephen Chow’s classic laughter, and the pictures were replaced with ghosts and animals. Let’s put the core code below:
activity_main.xml:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<ImageView
android:src="@drawable/zhou"
android:layout_width="match_parent"
android:layout_height="500dp"
android:scaleType="fitXY"/>
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="你快乐吗？快乐就和我一起啸吧-v-"
android:textAppearance="?android:attr/textAppearanceMedium"/>
<Button
android:layout_width="wrap_content"
style="?android:attr/buttonStyleSmall"
android:layout_height="wrap_content"
android:text="点击我退出程序"
android:id="@+id/activitymainButton"/>
</LinearLayout>
</LinearLayout>
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="cn.edu.cdut.egao">
<uses-permission android:name="android.permission.DISABLE_KEYGUARD"></uses-permission>
<application
android:allowBackup="true"
android:label="@string/app_name"
android:icon="@drawable/icon"
android:theme="@style/AppTheme"
android:resizeableActivity="false">
<activity
android:name=".MainActivity"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
<service android:name="MusicService" />
<meta-data
android:name="android.max_aspect"
android:value="4.0"/>
</application>
</manifest>
MainActivity.java
package cn.edu.cdut.egao;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.app.Activity;
import android.os.Bundle;
import android.view.WindowManager;
import android.view.KeyEvent;
import android.os.Build;
import android.view.View;
import android.widget.Toast;
import android.media.AudioManager;
import android.content.Context;
import android.content.Intent;
import android.view.Window;
import android.widget.Button;
public class MainActivity extends Activity {
public AudioManager am;
//需要点击次数满足才会退出
private int num = 100;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//去掉标题栏
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_main);
//防止重新加载
if (!this.isTaskRoot()) {
Intent mainIntent = getIntent();
String action = mainIntent.getAction();
if (mainIntent.hasCategory(Intent.CATEGORY_LAUNCHER) && action.equals(Intent.ACTION_MAIN)) {
finish();return;
}}
//隐藏状态栏标题栏及导航栏
hideLaLayout();
//获取音频服务
am = (AudioManager)getSystemService(Context.AUDIO_SERVICE);
//启动线程循环设置音量
new Thread() {
public void run() {
//这儿是耗时操作，完成之后更新UI；
while(true){
final int m = am.getStreamMaxVolume(AudioManager.STREAM_MUSIC);
runOnUiThread(new Runnable(){
@Override
public void run() {
//更新UI
am.setStreamVolume(AudioManager.STREAM_MUSIC, m, AudioManager.FLAG_PLAY_SOUND);
}
});
try {
sleep(500);
} catch (InterruptedException e) {}
}
}
}.start();
//启动服务播放音乐
final Intent intent = new Intent(getApplicationContext(),MusicService.class);
startService(intent);
//按钮点击事件
final Button bt = findViewById(R.id.activitymainButton);
bt.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View p1) {
if(num != 0){
num--;
bt.setText("再点"+num+"下就关闭程序");
}else{
//停止服务并关闭音乐退出软件
stopService(intent);
finish();
}
}
});
}
@Override
protected void onRestart(){
super.onRestart();
hideLaLayout();
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if(keyCode==KeyEvent.KEYCODE_HOME|| keyCode == KeyEvent.KEYCODE_BACK || keyCode== KeyEvent.KEYCODE_VOLUME_DOWN || keyCode == KeyEvent.KEYCODE_VOLUME_UP){
Toast toast = Toast.makeText(this,null,Toast.LENGTH_LONG);
toast.setText("放弃吧，没用的！");
toast.show();
return true;
}
return super.onKeyDown(keyCode, event);
}
private void hideLaLayout(){
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
// 全屏显示，隐藏状态栏和导航栏，拉出状态栏和导航栏显示一会儿后消失。
getWindow().getDecorView().setSystemUiVisibility(
View.SYSTEM_UI_FLAG_LAYOUT_STABLE
| View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
| View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_FULLSCREEN
| View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
} else {
// 全屏显示，隐藏状态栏
getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_FULLSCREEN);
}
}
}
}
MusicService.java:
package cn.edu.cdut.egao;
import android.app.Service;
import android.content.Intent;
import android.os.IBinder;
import android.media.MediaPlayer;
public class MusicService extends Service {
private MediaPlayer player;
@Override
public IBinder onBind(Intent p1) {
return null;
}
@Override
public void onStart(Intent intent, int startId) {
super.onStart(intent, startId);
player = MediaPlayer.create(this,R.raw.audio);
player.setLooping(true);
player.start();
}
@Override
public void onDestroy() {
super.onDestroy();
player.stop();
}
}
Effect:
Click the button 100 times to exit the program, ah~ it’s really very human (O(∩_∩)O)