获取已安装 Android 应用程序的内存和 RAM 详细信息答案

【问题标题】：Get memory and RAM details of installed android applications获取已安装 Android 应用程序的内存和 RAM 详细信息
【发布时间】：2013-10-18 11:24:58
【问题描述】：

我正在制作一个 android 应用程序来获取所有应用程序的列表、它们的内存详细信息和用于应用程序的 RAM。我用了这个链接

Get installed Applications with Name, Package Name, Version and Icon

现在我想获取 android 应用程序的内存详细信息。我试试这段代码

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、包名称、功能、权限等信息。

但我想获取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 得到答案public int getMemoryClass ()，但它为所有应用程序提供了 64mb

【问题讨论】：

Sunny：检查更新的代码

标签： android package-managers

【解决方案1】：

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");
    }
}

【讨论】：

谢谢，但它提供了系统信息。我想要安装每个应用程序的信息。
嗨，Ameer，如果是，您是否找到任何解决方案，如果是，请发布您的代码

【解决方案2】：

获取有关设备上安装的应用程序以及应用程序大小的信息的工作代码。我已经为它干杯了。实现可以按自己的要求来

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 );
    }
}

}

【讨论】：