Question

我正在尝试列出我服务中前台和后台运行的所有应用程序。我看到的电流似乎只返回我的应用程序的名称，而其他服务没有列出。似乎是因为API的一些变化＆gt; 21.我的目标API是22.有人可以帮助我使用代码列出所有应用程序名称和PID

我目前的代码是

ActivityManager activityManager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
    activityManager.getRunningAppProcesses()

    List<ActivityManager.RunningAppProcessInfo> processInfoList = activityManager.getRunningAppProcesses();
    for (ActivityManager.RunningAppProcessInfo processInfo : processInfoList) {
        Log.d("MyService", "...." + processInfo.processName );
    }

我也尝试了getAppTasks()，但它也返回同样的东西。

Answer 1

试试这个

 if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
            ActivityManager activityManager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
            activityManager.getRunningAppProcesses()

            List<ActivityManager.RunningAppProcessInfo> processInfoList = activityManager.getRunningAppProcesses();
            for (ActivityManager.RunningAppProcessInfo processInfo : processInfoList) {
                Log.d("MyService", "...." + processInfo.processName);
            }
        } else {
            UsageStatsManager usage = (UsageStatsManager) context.getSystemService(Context.USAGE_STATS_SERVICE);
            long time = System.currentTimeMillis();
            List<UsageStats> stats = usage.queryUsageStats(UsageStatsManager.INTERVAL_DAILY, time - 1000 * 1000, time);
            if (stats != null) {
                SortedMap<Long, UsageStats> runningTask = new TreeMap<Long, UsageStats>();
                for (UsageStats usageStats : stats) {
                    runningTask.put(usageStats.getLastTimeUsed(), usageStats);
                }
            }
        }

并在清单中添加此行

 <uses-permission
        android:name="android.permission.PACKAGE_USAGE_STATS"
        tools:ignore="ProtectedPermissions" />
<uses-permission android:name="android.permission.GET_TASKS" />

并且在活动中创建

if (hasPermissionToReadNetworkHistory()) {
            // do your stuff here

        }

最后这个方法

private boolean hasPermissionToReadNetworkHistory() {
        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
            return true;
        }
        final AppOpsManager appOps = (AppOpsManager) getSystemService(Context.APP_OPS_SERVICE);
        int mode = appOps.checkOpNoThrow(AppOpsManager.OPSTR_GET_USAGE_STATS,
                android.os.Process.myUid(), getPackageName());
        if (mode == AppOpsManager.MODE_ALLOWED) {
            return true;
        }
        appOps.startWatchingMode(AppOpsManager.OPSTR_GET_USAGE_STATS,
                getApplicationContext().getPackageName(),
                new AppOpsManager.OnOpChangedListener() {
                    @Override
                    @TargetApi(Build.VERSION_CODES.KITKAT)
                    public void onOpChanged(String op, String packageName) {
                        int mode = appOps.checkOpNoThrow(AppOpsManager.OPSTR_GET_USAGE_STATS,
                                android.os.Process.myUid(), getPackageName());
                        if (mode != AppOpsManager.MODE_ALLOWED) {
                            return;
                        }
                        appOps.stopWatchingMode(this);
                        Intent intent = new Intent(ChildMainActivity.this, ChildMainActivity.class);
                        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK);
                        getApplicationContext().startActivity(intent);
                    }
                });
        requestReadNetworkHistoryAccess();
        return false;
    }

列出所有正在运行的应用前景和背景

1 个答案: