清理内存clear

清理内存clear：

package com.android.cleanprocesstool;import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.util.Log;
import android.os.UserHandle;
import android.os.UserManager;import java.util.List;
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.BatteryManager;
import android.os.BatteryStats;
import android.os.Bundle;
import android.os.Handler;
import android.os.IPowerManager;
import android.os.Message;
import android.os.ServiceManager;
import android.os.SystemClock;
import android.text.format.DateUtils;
import android.widget.TextView;
import android.os.Bundle;
import android.app.ActivityManager;
import android.text.format.Formatter;
import android.util.Log;
import android.widget.Toast;
import java.util.List;public class ClearMemReceiver extends BroadcastReceiver {private static final String TAG = "Settings";private static final String PRIMARY_PROFILE_SETTING ="com.android.settings.PRIMARY_PROFILE_CONTROLLED";ActivityManager.MemoryInfo memoryInfo;private ActivityManager myActivityManager;private Context context;long mBeforeClearMem = 0;long mAfterClearMem = 0;private final long MIN_MEM_CLEAR = 10 * 1024 * 1024;@Overridepublic void onReceive(Context context, Intent broadcast) {context = context;memoryInfo = new ActivityManager.MemoryInfo();myActivityManager =(ActivityManager)context.getSystemService(Activity.ACTIVITY_SERVICE);myActivityManager.getMemoryInfo(memoryInfo) ;mBeforeClearMem = memoryInfo.availMem;clearBackgroundProcesses(context);}private String[] mWhiteList = {"com.tencent.qqmusic","com.tencent.mobileqq"};private void clearBackgroundProcesses(Context context) {ActivityManager activityManger = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);List<ActivityManager.RunningAppProcessInfo> list = activityManger.getRunningAppProcesses();int importance = ActivityManager.RunningAppProcessInfo.IMPORTANCE_SERVICE;if (list != null) {for(int i = 0; i < list.size(); i++) {ActivityManager.RunningAppProcessInfo apinfo = list.get(i);String[] pkgList = apinfo.pkgList;for (int j = 0; j < pkgList.length; j++) {boolean inWhiteList = false;for  (String whitelist : mWhiteList) {if (whitelist.equals(pkgList[j])) {inWhiteList = true;break;}}if (!inWhiteList && !pkgList[j].startsWith("com.android.providers")) {activityManger.forceStopPackage(pkgList[j]);}}}}myActivityManager =(ActivityManager)context.getSystemService(Activity.ACTIVITY_SERVICE);myActivityManager.getMemoryInfo(memoryInfo) ;mAfterClearMem = memoryInfo.availMem;if (mAfterClearMem - mBeforeClearMem < MIN_MEM_CLEAR) {Toast.makeText(context, context.getResources().getString(R.string.clear_mem_no_need), Toast.LENGTH_LONG).show();} else {String memInfoString = Formatter.formatFileSize(context, mAfterClearMem - mBeforeClearMem);String toast = context.getResources().getString(R.string.clear_mem_release);Toast.makeText(context, String.format(toast, memInfoString), Toast.LENGTH_SHORT).show();}}}