一、前言
最近开发过程中，因系统内存相对比较紧张，在启动某些CPU、内存占用比较大的APP的时候，就需要清理一下，把能杀的都杀掉，给前台进程腾出系统资源。
- 缺陷：对于persist进程，以及一些流氓APP（杀死后还自己起来的），还得想别的办法处理
二、代码实现
2.1 权限部分
- 要杀死其他APP进程，需要拥有下面权限，请添加到 AndroidManifest.xml 的权限声明列表中
<uses-permission android:name="android.permission.KILL_BACKGROUND_PROCESSES"/>
2.2 获取正在运行的APP列表
- 在Andorid P的版本里，下面的API接口，只有拥有"android.uid.system"、系统签名的APP上才能正常使用
- 如果不具备"android.uid.system"，则只能获取到自己当前进程的名称字符串
2.2.1 设置 android:sharedUserId
- 修改AndroidManifest.xml的开头部分，添加 android:sharedUserId=“android.uid.system”
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
android:sharedUserId="android.uid.system"
package="com.future.xyz.multimediacenter">
2.2.2 获取进程列表
- 如下，使用activityManager .getRunningAppProcesses()接口获取
ActivityManager activityManager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
List<ActivityManager.RunningAppProcessInfo> list = activityManager .getRunningAppProcesses();
int i = list.size();
Log.i(TAG, String.valueOf(i));
for (int j = 0; j < list.size(); j++) {
Log.i(TAG,"zs, processName: "+ list.get(j).processName);
}
2.3 设置白名单
- 将不需要杀死的APP的包名添加进去
private String mProcWhiteList[] = {
,"com.android.providers.tv"
,"com.mediatek.tvinput"
,"com.dangbei.lerad.vesuvius.sample"
// ,"com.ktcp.tvvideo"
,"com.android.browser"
,"com.hisense.client"
,"com.android.soundrecorder"
// ,"com.zk.tvwizard"
,"com.android.inputmethod.pinyin"
,"com.android.defcontainer"
,"system"
,"com.ms.weshare"
// …… 省略……
};
2.4 杀死白名单外的进程
- 如下在当前APP启动的onCreate阶段，先杀一遍
Log.d(TAG, "zs, onCreate ");
ActivityManager activityManager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
List<ActivityManager.RunningAppProcessInfo> list = activityManager .getRunningAppProcesses();
int i = list.size();
Log.i(TAG, String.valueOf(i));
for (int j = 0; j < list.size(); j++) {
Log.i(TAG,"zs, processName: "+ list.get(j).processName);
Boolean killProc = true;
for(int k=0; k<mProcWhiteList.length; k++){
if(mProcWhiteList[k].equals(list.get(j).processName)){
killProc = false;
}
}
if(killProc){
activityManager.killBackgroundProcesses(list.get(j).processName);
Log.d(TAG, "zs, killed "+list.get(j).processName);
}
}
2.5 打印
2022-10-19 16:46:38.859 6390-6390/com.future.xyz.multimediacenter D/DeviceListActivity: zs, onCreate
2022-10-19 16:46:38.860 6390-6390/com.future.xyz.multimediacenter I/DeviceListActivity: zs, processName: com.dangbei.mimir.lightos.home
2022-10-19 16:46:38.860 6390-6390/com.future.xyz.multimediacenter I/DeviceListActivity: zs, processName: com.future.xyz.multimediacenter
2022-10-19 16:46:38.861 6390-6390/com.future.xyz.multimediacenter I/DeviceListActivity: zs, processName: com.mediatek.wwtv.tvcenter
2022-10-19 16:46:38.861 6390-6390/com.future.xyz.multimediacenter I/DeviceListActivity: zs, processName: com.android.keychain
2022-10-19 16:46:38.861 6390-6390/com.future.xyz.multimediacenter I/DeviceListActivity: zs, processName: com.android.defcontainer
2022-10-19 16:46:38.861 6390-6390/com.future.xyz.multimediacenter I/DeviceListActivity: zs, processName: com.utv.android
2022-10-19 16:46:38.872 6390-6390/com.future.xyz.multimediacenter D/DeviceListActivity: zs, killed com.utv.android
2022-10-19 16:46:38.872 6390-6390/com.future.xyz.multimediacenter I/DeviceListActivity: zs, processName: com.mediatek.network
2022-10-19 16:46:38.872 6390-6390/com.future.xyz.multimediacenter I/DeviceListActivity: zs, processName: com.kingboard.settings
2022-10-19 16:46:38.877 6390-6390/com.future.xyz.multimediacenter D/DeviceListActivity: zs, killed com.zk.settings
2022-10-19 16:46:38.877 6390-6390/com.future.xyz.multimediacenter I/DeviceListActivity: zs, processName: com.android.inputmethod.latin
2022-10-19 16:46:38.877 6390-6390/com.future.xyz.multimediacenter I/DeviceListActivity: zs, processName: com.fanzc
2022-10-19 16:46:38.877 6390-6390/com.future.xyz.multimediacenter I/DeviceListActivity: zs, processName: com.zk.tvass
2022-10-19 16:46:38.877 6390-6390/com.future.xyz.multimediacenter I/DeviceListActivity: zs, processName: com.android.tv.settings
2022-10-19 16:46:38.878 6390-6390/com.future.xyz.multimediacenter I/DeviceListActivity: zs, processName: com.dangbei.lerad.vesuvius.sample
2022-10-19 16:46:38.878 6390-6390/com.future.xyz.multimediacenter I/DeviceListActivity: zs, processName: com.talkingdata.sdk.TDAntiCheatingService
2022-10-19 16:46:38.878 6390-6390/com.future.xyz.multimediacenter D/DeviceListActivity: zs, killed com.talkingdata.sdk.TDAntiCheatingService
2022-10-19 16:46:38.878 6390-6390/com.future.xyz.multimediacenter I/DeviceListActivity: zs, processName: com.android.bluetooth
2022-10-19 16:46:38.878 6390-6390/com.future.xyz.multimediacenter I/DeviceListActivity: zs, processName: com.mediatek.tvinput
2022-10-19 16:46:38.878 6390-6390/com.future.xyz.multimediacenter I/DeviceListActivity: zs, processName: com.ms.weshare
2022-10-19 16:46:38.879 6390-6390/com.future.xyz.multimediacenter I/DeviceListActivity: zs, processName: com.mediatek.tvinputservice.arbitratorservice
2022-10-19 16:46:38.881 6390-6390/com.future.xyz.multimediacenter I/DeviceListActivity: zs, processName: com.mediatek.TimeMeasurementAgent
2022-10-19 16:46:38.881 6390-6390/com.future.xyz.multimediacenter I/DeviceListActivity: zs, processName: com.mediatek.hotkey.dispatcher
2022-10-19 16:46:38.881 6390-6390/com.future.xyz.multimediacenter I/DeviceListActivity: zs, processName: com.android.se
2022-10-19 16:46:38.881 6390-6390/com.future.xyz.multimediacenter I/DeviceListActivity: zs, processName: com.zk.extracontrol
2022-10-19 16:46:38.882 6390-6390/com.future.xyz.multimediacenter I/DeviceListActivity: zs, processName: com.dangbei.speech
2022-10-19 16:46:38.882 6390-6390/com.future.xyz.multimediacenter I/DeviceListActivity: zs, processName: com.aispeech.tvui
2022-10-19 16:46:38.882 6390-6390/com.future.xyz.multimediacenter I/DeviceListActivity: zs, processName: com.android.systemui
2022-10-19 16:46:38.883 6390-6390/com.future.xyz.multimediacenter I/DeviceListActivity: zs, processName: system
三、结尾
对于persist进程（自启动），以及一些流氓APP（杀死后还自己起来的），还得想别的办法处理。
