Implement new ephemeral resolver design
In the new design, the ephemeral installer can be returned from
queryIntentActivities which means any intent resolution could potentially
return the installer. Additionally, the new design calls for a platform
defined broadcast receiver that receives the status from the ephemeral
installer. This receiver then starts the final intent -- either to launch
the ephemeral application or to launch the fallback.
For more detail, see go/ephemeral-design
Change-Id: I6644bbb4f180d2d22c63af04b9857577516344a9
diff --git a/services/core/java/com/android/server/am/ActivityStarter.java b/services/core/java/com/android/server/am/ActivityStarter.java
index 399ca9e..2ee6de2 100644
--- a/services/core/java/com/android/server/am/ActivityStarter.java
+++ b/services/core/java/com/android/server/am/ActivityStarter.java
@@ -103,6 +103,7 @@
import android.os.Bundle;
import android.os.IBinder;
import android.os.PowerManagerInternal;
+import android.os.Process;
import android.os.RemoteException;
import android.os.SystemClock;
import android.os.UserHandle;
@@ -132,6 +133,9 @@
private static final String TAG_CONFIGURATION = TAG + POSTFIX_CONFIGURATION;
private static final String TAG_USER_LEAVING = TAG + POSTFIX_USER_LEAVING;
+ // TODO b/30204367 remove when the platform fully supports ephemeral applications
+ private static final boolean USE_DEFAULT_EPHEMERAL_LAUNCHER = false;
+
private final ActivityManagerService mService;
private final ActivityStackSupervisor mSupervisor;
private ActivityStartInterceptor mInterceptor;
@@ -456,39 +460,13 @@
// starts either the intent we resolved here [on install error] or the ephemeral
// app [on install success].
if (rInfo != null && rInfo.ephemeralResolveInfo != null) {
- // Create a pending intent to start the intent resolved here.
- final IIntentSender failureTarget = mService.getIntentSenderLocked(
- ActivityManager.INTENT_SENDER_ACTIVITY, callingPackage,
- Binder.getCallingUid(), userId, null, null, 0, new Intent[]{ intent },
- new String[]{ resolvedType },
- PendingIntent.FLAG_CANCEL_CURRENT | PendingIntent.FLAG_ONE_SHOT
- | PendingIntent.FLAG_IMMUTABLE, null);
-
- // Create a pending intent to start the ephemeral application; force it to be
- // directed to the ephemeral package.
- ephemeralIntent.setPackage(rInfo.ephemeralResolveInfo.getPackageName());
- final IIntentSender ephemeralTarget = mService.getIntentSenderLocked(
- ActivityManager.INTENT_SENDER_ACTIVITY, callingPackage,
- Binder.getCallingUid(), userId, null, null, 0, new Intent[]{ ephemeralIntent },
- new String[]{ resolvedType },
- PendingIntent.FLAG_CANCEL_CURRENT | PendingIntent.FLAG_ONE_SHOT
- | PendingIntent.FLAG_IMMUTABLE, null);
-
- int flags = intent.getFlags();
- intent = new Intent();
- intent.setFlags(flags
- | Intent.FLAG_ACTIVITY_NEW_TASK
- | Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);
- intent.putExtra(Intent.EXTRA_PACKAGE_NAME,
- rInfo.ephemeralResolveInfo.getPackageName());
- intent.putExtra(Intent.EXTRA_EPHEMERAL_FAILURE, new IntentSender(failureTarget));
- intent.putExtra(Intent.EXTRA_EPHEMERAL_SUCCESS, new IntentSender(ephemeralTarget));
-
+ intent = buildEphemeralInstallerIntent(intent, ephemeralIntent,
+ rInfo.ephemeralResolveInfo.getPackageName(), callingPackage, resolvedType,
+ userId);
resolvedType = null;
callingUid = realCallingUid;
callingPid = realCallingPid;
- rInfo = rInfo.ephemeralInstaller;
aInfo = mSupervisor.resolveActivity(intent, rInfo, startFlags, null /*profilerInfo*/);
}
@@ -543,6 +521,60 @@
return err;
}
+ /**
+ * Builds and returns an intent to launch the ephemeral installer.
+ */
+ private Intent buildEphemeralInstallerIntent(Intent launchIntent, Intent origIntent,
+ String ephemeralPackage, String callingPackage, String resolvedType, int userId) {
+ final Intent nonEphemeralIntent = new Intent(origIntent);
+ nonEphemeralIntent.setFlags(nonEphemeralIntent.getFlags() | Intent.FLAG_IGNORE_EPHEMERAL);
+ // Intent that is launched if the ephemeral package couldn't be installed
+ // for any reason.
+ final IIntentSender failureIntentTarget = mService.getIntentSenderLocked(
+ ActivityManager.INTENT_SENDER_ACTIVITY, callingPackage,
+ Binder.getCallingUid(), userId, null /*token*/, null /*resultWho*/, 1,
+ new Intent[]{ nonEphemeralIntent }, new String[]{ resolvedType },
+ PendingIntent.FLAG_CANCEL_CURRENT | PendingIntent.FLAG_ONE_SHOT
+ | PendingIntent.FLAG_IMMUTABLE, null /*bOptions*/);
+
+ final Intent ephemeralIntent;
+ if (USE_DEFAULT_EPHEMERAL_LAUNCHER) {
+ // Force the intent to be directed to the ephemeral package
+ ephemeralIntent = new Intent(origIntent);
+ ephemeralIntent.setPackage(ephemeralPackage);
+ } else {
+ // Success intent goes back to the installer
+ // TODO; do we need any extras for the installer?
+ ephemeralIntent = new Intent(launchIntent);
+ ephemeralIntent.setData(null);
+ }
+
+ // Intent that is eventually launched if the ephemeral package was
+ // installed successfully. This will actually be launched by a platform
+ // broadcast receiver.
+ final IIntentSender successIntentTarget = mService.getIntentSenderLocked(
+ ActivityManager.INTENT_SENDER_ACTIVITY, callingPackage,
+ Binder.getCallingUid(), userId, null /*token*/, null /*resultWho*/, 0,
+ new Intent[]{ ephemeralIntent }, new String[]{ resolvedType },
+ PendingIntent.FLAG_CANCEL_CURRENT | PendingIntent.FLAG_ONE_SHOT
+ | PendingIntent.FLAG_IMMUTABLE, null /*bOptions*/);
+
+ // Finally build the actual intent to launch the ephemeral installer
+ int flags = launchIntent.getFlags();
+ final Intent intent = new Intent();
+ intent.setFlags(flags
+ | Intent.FLAG_ACTIVITY_NEW_TASK
+ | Intent.FLAG_ACTIVITY_CLEAR_TASK
+ | Intent.FLAG_ACTIVITY_NO_HISTORY
+ | Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);
+ intent.putExtra(Intent.EXTRA_PACKAGE_NAME, ephemeralPackage);
+ intent.putExtra(Intent.EXTRA_EPHEMERAL_FAILURE, new IntentSender(failureIntentTarget));
+ intent.putExtra(Intent.EXTRA_EPHEMERAL_SUCCESS, new IntentSender(successIntentTarget));
+ // TODO: Remove when the platform has fully implemented ephemeral apps
+ intent.setData(origIntent.getData());
+ return intent;
+ }
+
void postStartActivityUncheckedProcessing(
ActivityRecord r, int result, int prevFocusedStackId, ActivityRecord sourceRecord,
ActivityStack targetStack) {