add a new AppOpsManager.setOnOpNotedCallback API (8fd9b5cb) · Commits · e / os / android_frameworks_base

core/api/current.txt

+2 −0

Original line number	Diff line number	Diff line
		@@ -5103,6 +5103,7 @@ package android.app {
		method public int noteProxyOpNoThrow(@NonNull String, @Nullable String, int, @Nullable String, @Nullable String);
		method @Nullable public static String permissionToOp(@NonNull String);
		method public void setOnOpNotedCallback(@Nullable java.util.concurrent.Executor, @Nullable android.app.AppOpsManager.OnOpNotedCallback);
		method @FlaggedApi("android.permission.flags.sync_on_op_noted_api") public void setOnOpNotedCallback(@Nullable java.util.concurrent.Executor, @Nullable android.app.AppOpsManager.OnOpNotedCallback, int);
		method @Deprecated public int startOp(@NonNull String, int, @NonNull String);
		method public int startOp(@NonNull String, int, @Nullable String, @Nullable String, @Nullable String);
		method @Deprecated public int startOpNoThrow(@NonNull String, int, @NonNull String);
		@@ -5157,6 +5158,7 @@ package android.app {
		field public static final String OPSTR_WRITE_CONTACTS = "android:write_contacts";
		field public static final String OPSTR_WRITE_EXTERNAL_STORAGE = "android:write_external_storage";
		field public static final String OPSTR_WRITE_SETTINGS = "android:write_settings";
		field @FlaggedApi("android.permission.flags.sync_on_op_noted_api") public static final int OP_NOTED_CALLBACK_FLAG_IGNORE_ASYNC = 1; // 0x1
		field public static final int WATCH_FOREGROUND_CHANGES = 1; // 0x1
		}

core/java/android/app/AppOpsManager.java

+94 −20

Original line number	Diff line number	Diff line
		@@ -263,6 +263,13 @@ public class AppOpsManager {
		@GuardedBy("sLock")
		private static @Nullable OnOpNotedCallback sOnOpNotedCallback;

		/**
		* Whether OP_NOTED_CALLBACK_FLAG_IGNORE_ASYNC was set when sOnOpNotedCallback was registered
		* last time.
		*/
		@GuardedBy("sLock")
		private static boolean sIgnoreAsyncNotedCallback;

		/**
		* Sync note-ops collected from {@link #readAndLogNotedAppops(Parcel)} that have not been
		* delivered to a callback yet.
		@@ -10111,6 +10118,22 @@ public class AppOpsManager {
		private static final int COLLECT_SYNC = 2;
		private static final int COLLECT_ASYNC = 3;

		/** @hide */
		@Retention(RetentionPolicy.SOURCE)
		@IntDef(flag = true, prefix = { "OP_NOTED_CALLBACK_FLAG_" }, value = {
		OP_NOTED_CALLBACK_FLAG_IGNORE_ASYNC,
		})
		private @interface OpNotedCallbackFlags {}

		/**
		* Ignores async op noted events.
		*
		* @see #setOnOpNotedCallback
		*/
		@FlaggedApi(android.permission.flags.Flags.FLAG_SYNC_ON_OP_NOTED_API)
		public static final int OP_NOTED_CALLBACK_FLAG_IGNORE_ASYNC = 1;
		private static final int OP_NOTED_CALLBACK_FLAG_ALL = OP_NOTED_CALLBACK_FLAG_IGNORE_ASYNC;

		/**
		* Mark an app-op as noted.
		*/
		@@ -10256,6 +10279,12 @@ public class AppOpsManager {
		* <p>There can only ever be one collector per process. If there currently is another callback
		* set, this will fail.
		*
		* <p>Note that if an app has multiple processes registering for this callback, the system would
		* fan out async op noted callbacks to each of the processes, resulting in the same data being
		* delivered multiple times to an app, which is usually undesired. To avoid this, consider
		* listening to async ops only in one process. See
		* {@link #setOnOpNotedCallback(Executor, OnOpNotedCallback, int)} for how to do this.
		*
		* @param asyncExecutor executor to execute {@link OnOpNotedCallback#onAsyncNoted} on, {@code
		* null} to unset
		* @param callback listener to set, {@code null} to unset
		@@ -10264,19 +10293,63 @@ public class AppOpsManager {
		*/
		public void setOnOpNotedCallback(@Nullable @CallbackExecutor Executor asyncExecutor,
		@Nullable OnOpNotedCallback callback) {
		setOnOpNotedCallback(asyncExecutor, callback, /* flag */ 0);
		}

		/**
		* Set a new {@link OnOpNotedCallback}.
		*
		* <p>There can only ever be one collector per process. If there currently is another callback
		* set, this will fail.
		*
		* <p>This API allows the caller to listen only to sync and self op noted events, and ignore
		* async ops. This is useful in the scenario where an app has multiple processes. Consider an
		* example where an app has two processes, A and B. The op noted events are as follows:
		* <ul>
		* <li>op 1: process A, sync
		* <li>op 2: process A, async
		* <li>op 3: process B, sync
		* <li>op 4: process B, async
		* Any process that listens to async op noted events gets events originating from across ALL
		* processes (op 2 and op 4 in this example). So if both process A and B register as listeners,
		* both of them get op 2 and 4 which is not ideal. To avoid duplicates, one of the two processes
		* should set {@link #OP_NOTED_CALLBACK_FLAG_IGNORE_ASYNC}. For example
		* process A sets {@link #OP_NOTED_CALLBACK_FLAG_IGNORE_ASYNC} and would then only get its own
		* sync event (op 1). The other process would then listen to all types of events and get op 2, 3
		* and 4.
		*
		* Note that even with {@link #OP_NOTED_CALLBACK_FLAG_IGNORE_ASYNC},
		* {@link #OnOpNotedCallback.onAsyncNoted} may still be invoked. This happens for sync events
		* that were collected before a callback is registered.
		*
		* @param asyncExecutor executor to execute {@link OnOpNotedCallback#onAsyncNoted} on, {@code
		* null} to unset
		* @param callback listener to set, {@code null} to unset
		* @param flags additional flags to modify the callback behavior, such as
		* {@link #OP_NOTED_CALLBACK_FLAG_IGNORE_ASYNC}
		*
		* @throws IllegalStateException If another callback is already registered
		*/
		@FlaggedApi(android.permission.flags.Flags.FLAG_SYNC_ON_OP_NOTED_API)
		public void setOnOpNotedCallback(@Nullable @CallbackExecutor Executor asyncExecutor,
		@Nullable OnOpNotedCallback callback, @OpNotedCallbackFlags int flags) {
		Preconditions.checkState((callback == null) == (asyncExecutor == null));
		Preconditions.checkFlagsArgument(flags, OP_NOTED_CALLBACK_FLAG_ALL);

		synchronized (sLock) {
		if (callback == null) {
		Preconditions.checkFlagsArgument(flags, 0);
		Preconditions.checkState(sOnOpNotedCallback != null,
		"No callback is currently registered");

		if (!sIgnoreAsyncNotedCallback) {
		try {
		mService.stopWatchingAsyncNoted(mContext.getPackageName(),
		sOnOpNotedCallback.mAsyncCb);
		} catch (RemoteException e) {
		e.rethrowFromSystemServer();
		}
		}

		sOnOpNotedCallback = null;
		} else {
		@@ -10285,8 +10358,10 @@ public class AppOpsManager {

		callback.mAsyncExecutor = asyncExecutor;
		sOnOpNotedCallback = callback;
		sIgnoreAsyncNotedCallback = (flags & OP_NOTED_CALLBACK_FLAG_IGNORE_ASYNC) != 0;

		List<AsyncNotedAppOp> missedAsyncOps = null;
		if (!sIgnoreAsyncNotedCallback) {
		try {
		mService.startWatchingAsyncNoted(mContext.getPackageName(),
		sOnOpNotedCallback.mAsyncCb);
		@@ -10294,6 +10369,7 @@ public class AppOpsManager {
		} catch (RemoteException e) {
		e.rethrowFromSystemServer();
		}
		}

		// Copy pointer so callback can be dispatched out of lock
		OnOpNotedCallback onOpNotedCallback = sOnOpNotedCallback;
		@@ -10305,7 +10381,6 @@ public class AppOpsManager {
		() -> onOpNotedCallback.onAsyncNoted(asyncNotedAppOp));
		}
		}
		synchronized (this) {
		int numMissedSyncOps = sUnforwardedOps.size();
		if (onOpNotedCallback != null) {
		for (int i = 0; i < numMissedSyncOps; i++) {
		@@ -10318,7 +10393,6 @@ public class AppOpsManager {
		}
		}
		}
		}

		// TODO moltmann: Remove
		/**

core/java/android/permission/flags.aconfig

+7 −0

Original line number	Diff line number	Diff line
		@@ -231,6 +231,13 @@ flag {
		}
		}

		flag {
		name: "sync_on_op_noted_api"
		namespace: "permissions"
		description: "New setOnOpNotedCallback API to allow subscribing to only sync ops."
		bug: "372910217"
		}

		flag {
		name: "wallet_role_icon_property_enabled"
		is_exported: true