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Commit 3d4f604a authored by Chenjie Yu's avatar Chenjie Yu
Browse files

Log when app move to foreground or background. 

Together with screen state change, we will have appusage info.

Test: manually test on device
Change-Id: Ie9cfe0376cf0d6339be5e8e96f7b360c3f0771d6
parent c76ca488

cmds/statsd/src/stats_events.proto

+18 −0
Original line number Diff line number Diff line
@@ -71,6 +71,7 @@ message StatsEvent { 
        PhoneSignalStrengthChanged phone_signal_strength_changed = 40;

        SettingChanged setting_changed = 41;

        KernelWakelockPulled kernel_wakelock_pulled = 42;

        ActivityForegroundStateChanged activity_foreground_state_changed = 43;

        // TODO: Reorder the numbering so that the most frequent occur events occur in the first 15.

    }

}
@@ -693,3 +694,20 @@ message KernelWakelockPulled { 
    optional int64 total_time = 3;

    optional string name = 4;

}



/*

 * Logs activity going to foreground or background

 *

 * Logged from:

  *   frameworks/base/services/core/java/com/android/server/am/ActivityRecord.java

 */

message ActivityForegroundStateChanged {

    enum Activity {

        MOVE_TO_BACKGROUND = 0;

        MOVE_TO_FOREGROUND = 1;

    }

    optional int32 uid = 1;

    optional string pkg_name = 2;

    optional string class_name = 3;

    optional Activity activity = 4;

}

services/core/java/com/android/server/am/ActivityManagerService.java

+4 −0
Original line number Diff line number Diff line
@@ -4043,10 +4043,14 @@ public class ActivityManagerService extends IActivityManager.Stub 
        if (DEBUG_SWITCH) Slog.d(TAG_SWITCH,

                "updateUsageStats: comp=" + component + "res=" + resumed);

        final BatteryStatsImpl stats = mBatteryStatsService.getActiveStatistics();

        StatsLog.write(StatsLog.ACTIVITY_FOREGROUND_STATE_CHANGED,

            component.userId, component.realActivity.getPackageName(),

            component.realActivity.getShortClassName(), resumed ? 1 : 0);

        if (resumed) {

            if (mUsageStatsService != null) {

                mUsageStatsService.reportEvent(component.realActivity, component.userId,

                        UsageEvents.Event.MOVE_TO_FOREGROUND);















            }















            synchronized (stats) {















                stats.noteActivityResumedLocked(component.app.uid);