获取已安装android应用程序的内存和RAM详细信息

Question

我正在制作一个android应用程序，以获取所有应用程序的列表、它们的内存细节和应用程序所用的RAM。我用了这个链接

获取安装的应用程序名称，包名称，版本和图标

现在我想了解android应用程序的内存细节。我试试这个密码

MemoryInfo mi = new MemoryInfo();
ActivityManager activityManager = (ActivityManager) getSystemService(ACTIVITY_SERVICE);
activityManager.getMemoryInfo(mi);
long availableMegs = mi.availMem / 1048576L;

我正在获取应用程序徽标、应用程序名称、版本、更新时间、软件包名称、权限等信息。

但是我想得到每个应用程序的内存使用情况，大小等（硬件信息）。

我搜索了很多，并从ActivityManager得到了答案Public int getMemoryClass（），但它为所有应用程序提供了64mb

Answer 1

获取设备上安装的应用程序信息以及应用程序大小的工作代码。。我为它干杯。执行可能是一个人的要求

import android.content.pm.PackageInfo;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.util.Log;
import android.widget.Toast;

import java.io.File;
import java.util.ArrayList;
import java.util.List;


public class MainActivity extends ActionBarActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    getPackages();
}

private ArrayList<PInfo> getPackages() {
    ArrayList<PInfo> apps = getInstalledApps(false); /* false = no system packages */
    final int max = apps.size();
    for (int i=0; i<max; i++) {
        apps.get(i).prettyPrint();
    }
    return apps;
}

private ArrayList<PInfo> getInstalledApps(boolean getSysPackages) {
    ArrayList<PInfo> res = new ArrayList<PInfo>();
    List<PackageInfo> packs = getPackageManager().getInstalledPackages(0);
    for(int i=0;i<packs.size();i++) {
        PackageInfo p = packs.get(i);
        if ((!getSysPackages) && (p.versionName == null)) {
            continue ;
        }
        PInfo newInfo = new PInfo();
        newInfo.appname = p.applicationInfo.loadLabel(getPackageManager()).toString();
        newInfo.pname = p.packageName;
        newInfo.versionName = p.versionName;
        newInfo.versionCode = p.versionCode;
        newInfo.path = p.applicationInfo.sourceDir;
        newInfo.icon = p.applicationInfo.loadIcon(getPackageManager());

        File file = new File(newInfo.path);
        long sizeinByte = file.length();
        long sizeinMb = sizeinByte / (1024*1024);

        Toast.makeText(this,newInfo.appname + "\t"/*"\t" + newInfo.pname + "\t" + newInfo.versionName + "\t" + newInfo.versionCode + "\t" */+sizeinMb+"Mb",Toast.LENGTH_SHORT).show();


        res.add(newInfo);
    }
    return res;
}
private class PInfo {
    private String appname = "";
    private String pname = "";
    private String versionName = "";
    private int versionCode = 0;
    private String path = "";
    private Drawable icon;

    private void prettyPrint() {
        Log.i("Here",appname + "\t" + pname + "\t" + versionName + "\t" + versionCode + "\t" + path );
    }
}

}

Answer 2

试试这个：-

ActivityManager activityManager = (ActivityManager) context.getSystemService(ACTIVITY_SERVICE);
MemoryInfo memoryInfo = new ActivityManager.MemoryInfo();
activityManager.getMemoryInfo(memoryInfo);

Log.i(TAG, " memoryInfo.availMem " + memoryInfo.availMem + "\n" );
Log.i(TAG, " memoryInfo.lowMemory " + memoryInfo.lowMemory + "\n" );
Log.i(TAG, " memoryInfo.threshold " + memoryInfo.threshold + "\n" );

List<RunningAppProcessInfo> runningAppProcesses = activityManager.getRunningAppProcesses();

Map<Integer, String> pidMap = new TreeMap<Integer, String>();
for (RunningAppProcessInfo runningAppProcessInfo : runningAppProcesses)
{
    pidMap.put(runningAppProcessInfo.pid, runningAppProcessInfo.processName);
}

Collection<Integer> keys = pidMap.keySet();

for(int key : keys)
{
    int pids[] = new int[1];
    pids[0] = key;
    android.os.Debug.MemoryInfo[] memoryInfoArray = activityManager.getProcessMemoryInfo(pids);
    for(android.os.Debug.MemoryInfo pidMemoryInfo: memoryInfoArray)
    {
        Log.i(TAG, String.format("** MEMINFO in pid %d [%s] **\n",pids[0],pidMap.get(pids[0])));
        Log.i(TAG, " pidMemoryInfo.getTotalPrivateDirty(): " + pidMemoryInfo.getTotalPrivateDirty() + "\n");
        Log.i(TAG, " pidMemoryInfo.getTotalPss(): " + pidMemoryInfo.getTotalPss() + "\n");
        Log.i(TAG, " pidMemoryInfo.getTotalSharedDirty(): " + pidMemoryInfo.getTotalSharedDirty() + "\n");
    }
}