Android普通应用升级为系统应用并获取系统权限的操作

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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.google.example"
      android:sharedUserId="android.uid.system">

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--- a/frameworks/base/packages/SystemUI/src/com/android/systemui/SystemUIApplication.java
+++ b/frameworks/base/packages/SystemUI/src/com/android/systemui/SystemUIApplication.java
@@ -16,24 +16,51 @@
package com.android.systemui;
+import android.app.ActivityManager;
+import android.app.ActivityManager.RunningAppProcessInfo;
import android.app.Application;
import android.app.Instrumentation;
import android.content.BroadcastReceiver;
import android.content.Context;
+import android.content.ComponentName;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.res.Configuration;
+import android.database.ContentObserver;
+import android.net.Uri;
+import android.os.Build;
+import android.os.Handler;
import android.os.Process;
import android.os.PowerManager;
import android.os.SystemClock;
import android.os.SystemProperties;
import android.os.UserHandle;
import android.util.Log;
-
+import java.util.List;
+import java.util.Calendar;
import com.android.systemui.stackdivider.Divider;
import java.util.HashMap;
import java.util.Map;
+import java.util.Objects;
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileReader;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.Locale;
+
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.InputStream;
+import java.io.PrintWriter;
+import java.math.BigInteger;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.util.Random;
/**
 * Application class for SystemUI.
@@ -42,6 +69,8 @@ public class SystemUIApplication extends Application {
   private static final String TAG = "SystemUIService";
   private static final boolean DEBUG = false;
+    
+    private Context mContext;
   /**
   * The classes of the stuff to start.
@@ -86,6 +115,8 @@ public class SystemUIApplication extends Application {
     // application theme in the manifest does only work for activities. Keep this in sync with
     // the theme set there.
     setTheme(R.style.systemui_theme);
+        
+        mContext = getApplicationContext();
     SystemUIFactory.createFromConfig(this);
@@ -143,6 +174,7 @@ public class SystemUIApplication extends Application {
    private static final String SETTING_SYSTEM = "tchip.provider.setting.system";
    private static final String SETTING_SECURE = "tchip.provider.setting.secure";
    private static final String SETTING_GLOBAL = "tchip.provider.setting.global";
+    private static final String BROADCAST_SCREENSHOT = "rk.android.screenshot.action";
    private String valueContent = "0";
    private MainReceiver mainReceiver;
    
@@ -150,6 +182,10 @@ public class SystemUIApplication extends Application {
        android.util.Log.i("AZ", log);
    }
    
+    private void LDLog(String log) {
+        android.util.Log.i("LD", log);
+    }
+    
    public class MainReceiver extends BroadcastReceiver {
        @Override
@@ -225,6 +261,18 @@ public class SystemUIApplication extends Application {
                intentDown.putExtra("android.intent.extra.KEY_CONFIRM", false);
                intentDown.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                context.startActivity(intentDown);
+            } else if (BROADCAST_SCREENSHOT.equals(action)) {
+                Intent intentScreenShot = new Intent("android.intent.action.SCREENSHOT");
+                intentScreenShot.putExtra("path", intentScreenShot.getExtras().getString("path"));
+                intentScreenShot.putExtra("name", intentScreenShot.getExtras().getString("name"));
+                context.sendBroadcast(intentScreenShot);
+            } else if (BROADCAST_TIMETICK.equals(action)) {
+                //checkLaidianAppAlive();
+                try{
+                    mHandler.removeCallbacks(laidianAppR);
+                }catch(Exception e){
+                }
+                mHandler.postDelayed(laidianAppR, 1000);
            }
        }
    }
@@ -326,4 +374,82 @@ public class SystemUIApplication extends Application {
   public SystemUI[] getServices() {
     return mServices;
   }
+    
+    
+    Handler mHandler = new Handler();
+    private int laidianAppCheckTime = 3000;
+  Runnable laidianAppR = new Runnable(){
+
+        @Override
+        public void run() {
+           checkAppAlive(pkgName", "clsName");
+            mHandler.postDelayed(laidianAppR, laidianAppCheckTime);
+        }
+    
+  };
+
+    private void checkAppAlive(String pkgName, String clsName){
+        long startTime = System.currentTimeMillis();
+        if(!isAppAlive(pkgName)){
+            LDLog("checkAppAlive.start to start app... ");
+            try{
+                ComponentName componentName = new ComponentName(pkgName, clsName);
+        Intent intent = new Intent();
+        intent.setComponent(componentName);
+        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+        mContext.startActivity(intent);
+            }catch(Exception e){
+                
+            }
+        }else{
+            LDLog("checkAppAlive.app is running... ");
+        }
+        LDLog("checkAppAlive.used time : " + (System.currentTimeMillis() - startTime));
+    }
+    
+    public boolean isAppAlive(String packageName){
+        //boolean isAlive = false;
+        //String command = "ps | grep " + packageName/* + " | busybox awk '{print $2}'"*/;
+        //String[] result = ExecCmd.getPackagePID(command);
+        //for(String str :result){
+      // if(!"-1".equals(str)){
+      //     isAlive = true;
+      // }
+        //}
+        //return isAlive;
+        
+    // 获取正在运行的进程
+    /*ActivityManager activityManager = (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE);
+    List<RunningAppProcessInfo> appProcesses = activityManager.getRunningAppProcesses();
+    
+    for (RunningAppProcessInfo appProcess : appProcesses) {
+      String[] pkgList = appProcess.pkgList;
+      for (String pckName : pkgList) {
+        if(packageName.equals(pckName)){
+            return true;
+        }
+            
+      }
+    }*/
+        ActivityManager am = (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE);
+        List<ActivityManager.RecentTaskInfo> recentTasks = am.getRecentTasks(30, ActivityManager.RECENT_IGNORE_UNAVAILABLE
+            | ActivityManager.RECENT_INCLUDE_PROFILES);
+        
+        for (ActivityManager.RecentTaskInfo recentInfo : recentTasks){
+      //if (recentInfo.origActivity != null) {
+                String pckName = recentInfo.baseIntent.getComponent().getPackageName();
+                LDLog("isAppAlive.packageName=" + pckName);
+                if(packageName.equals(pckName)){
+                    return true;
+                }
+            //}
+        }
+    return false;
+    }
+
}