Merge "Improve how we manage the previous app." into ics-mr1 (55e81bd0) · Commits · e / os / android_frameworks_base

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

+12 −1

Original line number	Diff line number	Diff line
		@@ -415,6 +415,11 @@ public final class ActivityManagerService extends ActivityManagerNative
		*/
		ProcessRecord mPreviousProcess;

		/**
		* The time at which the previous process was last visible.
		*/
		long mPreviousProcessVisibleTime;

		/**
		* Packages that the user has asked to have run in screen size
		* compatibility mode instead of filling the screen.
		@@ -8361,6 +8366,12 @@ public final class ActivityManagerService extends ActivityManagerNative
		pw.println();
		pw.println(" mHomeProcess: " + mHomeProcess);
		pw.println(" mPreviousProcess: " + mPreviousProcess);
		if (dumpAll) {
		StringBuilder sb = new StringBuilder(128);
		sb.append(" mPreviousProcessVisibleTime: ");
		TimeUtils.formatDuration(mPreviousProcessVisibleTime, sb);
		pw.println(sb);
		}
		if (mHeavyWeightProcess != null) {
		pw.println(" mHeavyWeightProcess: " + mHeavyWeightProcess);
		}

+6 −0

Original line number	Diff line number	Diff line
		@@ -80,6 +80,7 @@ final class ActivityRecord {
		ThumbnailHolder thumbHolder; // where our thumbnails should go.
		long launchTime; // when we starting launching this activity
		long startTime; // last time this activity was started
		long lastVisibleTime; // last time this activity became visible
		long cpuTimeAtResume; // the cpu time of host process at the time of resuming activity
		Configuration configuration; // configuration activity was last running in
		CompatibilityInfo compat;// last used compatibility mode
		@@ -188,6 +189,10 @@ final class ActivityRecord {
		TimeUtils.formatDuration(launchTime, pw); pw.print(" startTime=");
		TimeUtils.formatDuration(startTime, pw); pw.println("");
		}
		if (lastVisibleTime != 0) {
		pw.print(prefix); pw.print("lastVisibleTime=");
		TimeUtils.formatDuration(lastVisibleTime, pw); pw.println("");
		}
		if (waitingVisible \|\| nowVisible) {
		pw.print(prefix); pw.print("waitingVisible="); pw.print(waitingVisible);
		pw.print(" nowVisible="); pw.println(nowVisible);
		@@ -632,6 +637,7 @@ final class ActivityRecord {
		ActivityManagerService.TAG, "windowsVisible(): " + this);
		if (!nowVisible) {
		nowVisible = true;
		lastVisibleTime = SystemClock.uptimeMillis();
		if (!idle) {
		// Instead of doing the full stop routine here, let's just
		// hide any activities we now can, and let them stop when

+16 −8

Original line number	Diff line number	Diff line
		@@ -949,6 +949,22 @@ final class ActivityStack {
		if (r.configDestroy) {
		destroyActivityLocked(r, true, false, "stop-config");
		resumeTopActivityLocked(null);
		} else {
		// Now that this process has stopped, we may want to consider
		// it to be the previous app to try to keep around in case
		// the user wants to return to it.
		ProcessRecord fgApp = null;
		if (mResumedActivity != null) {
		fgApp = mResumedActivity.app;
		} else if (mPausingActivity != null) {
		fgApp = mPausingActivity.app;
		}
		if (r.app != null && fgApp != null && r.app != fgApp
		&& r.lastVisibleTime > mService.mPreviousProcessVisibleTime
		&& r.app != mService.mHomeProcess) {
		mService.mPreviousProcess = r.app;
		mService.mPreviousProcessVisibleTime = r.lastVisibleTime;
		}
		}
		}
		}
		@@ -1363,14 +1379,6 @@ final class ActivityStack {
		+ ", nowVisible=" + next.nowVisible);
		}
		}

		if (!prev.finishing && prev.app != null && prev.app != next.app
		&& prev.app != mService.mHomeProcess) {
		// We are switching to a new activity that is in a different
		// process than the previous one. Note the previous process,
		// so we can try to keep it around.
		mService.mPreviousProcess = prev.app;
		}
		}

		// Launching this app's activity, make sure the app is no longer