Question

如何获取android 进程信息

Answer 1

如何获取android 进程信息，有需要的朋友可以参考下。

有时候为了完成某些功能比如监测某些程序的运行情况，我们可以通过动态的获取android 进程信息：
1）首先我们定义下进程信息的model：

public class ProcessInfo {
private int pid; // 进程id
private int uid; // 进程所在的用户id
private int memSize; //进程占用的内存,kb
private String processName; // 进程名
public String pkgnameList[] ;//运行在进程里的对应的所有程序的包名
public int getPid() {
return this.pid;
}

public void setPid(int pid) {
this.pid = pid;
}

public int getUid() {
return this.uid;
}

public void setUid(int uid) {
this.uid = uid;
}

public int getMemSize() {
return this.memSize;
}

public void setMemSize(int memSize) {
this.memSize = memSize;
}

public String getProcessName() {
return this.processName;
}

public void setPocessName(String processName) {
this.processName = processName;
}
}

其次，我们通过android API 获取进程信息：
// 获得系统进程信息

private ArrayList<ProcessInfo> getRunningAppProcessInfo(){
ActivityManager mActivityManager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
ArrayList<ProcessInfo> processInfoList = new ArrayList<ProcessInfo>();
List<ActivityManager.RunningAppProcessInfo> appProcessList = mActivityManager.getRunningAppProcesses();
for (ActivityManager.RunningAppProcessInfo appProcessInfo : appProcessList) {
int pid = appProcessInfo.pid;
int uid = appProcessInfo.uid;
String processName = appProcessInfo.processName;
int[] myMempid = new int[] { pid };
Debug.MemoryInfo[] memoryInfo = mActivityManager.gegetProcessMemoryInfo(myMempid);
//kb
int memSize = memoryInfo[0].dalvikPrivateDirty;
ProcessInfo processInfo = new ProcessInfo();
processInfo.setPid(pid);
processInfo.setUid(uid);
processInfo.setMemSize(memSize);
processInfo.setPocessName(processName);
processInfo.pkgnameList = appProcessInfo.pkgList ;
processInfoList.add(processInfo);
return processInfoList;
}

//判断某进程是否存在

private boolean isProcessExisting(String packageName){
ArrayList<ProcessInfo> processInfoList = getRunningAppProcessInfo();
for(ProcessInfo process : processInfoList){
String[] packageList = process.pkgnameList;
for (String pkg : packageList) {
if(pkg.equals(packageName)){
return true;
}
}
}
return false;
}

Answer 2

打开设置>应用>正在运行。