/**
* Android将进程分为6个等级,它们按优先级顺序由高到低依次是: 1) 前台进程( FOREGROUND_APP) 2)
* 可视进程(VISIBLE_APP ) 3) 次要服务进程(SECONDARY_SERVER ) 4) 后台进程 (HIDDEN_APP) 5)
* 内容供应节点(CONTENT_PROVIDER) 6) 空进程(EMPTY_APP)。注意:注意值越大说明进程重要程度越低。
*/
public void ClearMemoryAction() {
// final String TAG = "clearMemory";
ActivityManager am = (ActivityManager) context
.getSystemService(Context.ACTIVITY_SERVICE);
List<RunningAppProcessInfo> runnningAppProcessInfo = am
.getRunningAppProcesses(); // 获得正在运行的进程
if (runnningAppProcessInfo != null) {
for (int i = 0; i < runnningAppProcessInfo.size(); ++i) {
RunningAppProcessInfo appProcessInfo = runnningAppProcessInfo
.get(i);
// 一般数值大于RunningAppProcessInfo.IMPORTANCE_VISIBLE的进程都是非可见进程,也就是在后台运行着
if (appProcessInfo.importance > RunningAppProcessInfo.IMPORTANCE_VISIBLE) {
String[] packagesList = appProcessInfo.pkgList; // 运行在该进程下的所有应用程序包名,一个进程里可以运行一个或多个应用程序
for (int j = 0; j < packagesList.length; ++j) {
am.killBackgroundProcesses(packagesList[j]);
Log.i(TAG, "杀死的进程的包名" + packagesList[j]);
}
}
}
}
}
public int getProcessCount() {
// final String TAG = "clearMemory";
ActivityManager am = (ActivityManager) context
.getSystemService(Context.ACTIVITY_SERVICE);
List<RunningAppProcessInfo> runnningAppProcessInfo = am
.getRunningAppProcesses(); // 获得正在运行的进程
int count = 0;
if (runnningAppProcessInfo != null) {
for (int i = 0; i < runnningAppProcessInfo.size(); ++i) {
RunningAppProcessInfo appProcessInfo = runnningAppProcessInfo
.get(i);
// 一般数值大于RunningAppProcessInfo.IMPORTANCE_VISIBLE的进程都是非可见进程,也就是在后台运行着
if (appProcessInfo.importance > RunningAppProcessInfo.IMPORTANCE_VISIBLE) {
String[] packagesList = appProcessInfo.pkgList; // 运行在该进程下的所有应用程序包名,一个进程里可以运行一个或多个应用程序
for (int j = 0; j < packagesList.length; ++j) {
count++;
}
}
}
}
Log.i(TAG, "杀死的进程的数目" + count);
return count;
}