Show toasts from system/sysUI to all users am: 0a7ced1dd3 (d6ff4d45) · Commits · e / os / android_frameworks_base

core/java/android/widget/Toast.java

+1 −1

Original line number	Diff line number	Diff line
		@@ -651,7 +651,7 @@ public class Toast {
		}
		};

		presenter.startLayoutParams(mParams);
		presenter.startLayoutParams(mParams, packageName);
		}

		private List<Callback> getCallbacks() {

core/java/android/widget/ToastPresenter.java

+33 −2

Original line number	Diff line number	Diff line
		@@ -18,6 +18,7 @@ package android.widget;

		import android.content.Context;
		import android.content.res.Configuration;
		import android.content.res.Resources;
		import android.graphics.PixelFormat;
		import android.os.IBinder;
		import android.view.Gravity;
		@@ -28,6 +29,7 @@ import android.view.accessibility.AccessibilityEvent;
		import android.view.accessibility.AccessibilityManager;

		import com.android.internal.R;
		import com.android.internal.util.ArrayUtils;

		/**
		* Class responsible for toast presentation inside app's process and in system UI.
		@@ -39,17 +41,19 @@ public class ToastPresenter {
		private static final long LONG_DURATION_TIMEOUT = 7000;

		private final Context mContext;
		private final Resources mResources;
		private final AccessibilityManager mAccessibilityManager;

		public ToastPresenter(Context context, AccessibilityManager accessibilityManager) {
		mContext = context;
		mResources = context.getResources();
		mAccessibilityManager = accessibilityManager;
		}

		/**
		* Initializes {@code params} with default values for toasts.
		*/
		public void startLayoutParams(WindowManager.LayoutParams params) {
		public void startLayoutParams(WindowManager.LayoutParams params, String packageName) {
		params.height = WindowManager.LayoutParams.WRAP_CONTENT;
		params.width = WindowManager.LayoutParams.WRAP_CONTENT;
		params.format = PixelFormat.TRANSLUCENT;
		@@ -60,6 +64,7 @@ public class ToastPresenter {
		params.flags = WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON
		\| WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
		\| WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE;
		setShowForAllUsersIfApplicable(params, packageName);
		}

		/**
		@@ -69,7 +74,7 @@ public class ToastPresenter {
		public void adjustLayoutParams(WindowManager.LayoutParams params, IBinder windowToken,
		int duration, int gravity, int xOffset, int yOffset, float horizontalMargin,
		float verticalMargin) {
		Configuration config = mContext.getResources().getConfiguration();
		Configuration config = mResources.getConfiguration();
		int absGravity = Gravity.getAbsoluteGravity(gravity, config.getLayoutDirection());
		params.gravity = absGravity;
		if ((absGravity & Gravity.HORIZONTAL_GRAVITY_MASK) == Gravity.FILL_HORIZONTAL) {
		@@ -88,6 +93,32 @@ public class ToastPresenter {
		params.token = windowToken;
		}

		/**
		* Sets {@link WindowManager.LayoutParams#SYSTEM_FLAG_SHOW_FOR_ALL_USERS} flag if {@code
		* packageName} is a cross-user package.
		*
		* Implementation note:
		* This code is safe to be executed in SystemUI and the app's process:
		* <li>SystemUI: It's running on a trusted domain so apps can't tamper with it. SystemUI
		* has the permission INTERNAL_SYSTEM_WINDOW needed by the flag, so SystemUI can add
		* the flag on behalf of those packages, which all contain INTERNAL_SYSTEM_WINDOW
		* permission.
		* <li>App: The flag being added is protected behind INTERNAL_SYSTEM_WINDOW permission
		* and any app can already add that flag via getWindowParams() if it has that
		* permission, so we are just doing this automatically for cross-user packages.
		*/
		private void setShowForAllUsersIfApplicable(WindowManager.LayoutParams params,
		String packageName) {
		if (isCrossUserPackage(packageName)) {
		params.privateFlags = WindowManager.LayoutParams.SYSTEM_FLAG_SHOW_FOR_ALL_USERS;
		}
		}

		private boolean isCrossUserPackage(String packageName) {
		String[] packages = mResources.getStringArray(R.array.config_toastCrossUserPackages);
		return ArrayUtils.contains(packages, packageName);
		}

		/**
		* Returns the default text toast view for message {@code text}.
		*/

core/res/res/values/config.xml

+9 −0

Original line number	Diff line number	Diff line
		@@ -4410,4 +4410,13 @@

		<!-- Whether to default to an expanded list of users on the lock screen user switcher. -->
		<bool name="config_expandLockScreenUserSwitcher">false</bool>

		<!-- Toasts posted from these packages will be shown to the current user, regardless of the user
		the process belongs to. This is useful for packages that run under a single user but serve
		multiple users, e.g. the system.
		These packages MUST be able to add flag SYSTEM_FLAG_SHOW_FOR_ALL_USERS to a window. -->
		<string-array name="config_toastCrossUserPackages" translatable="false">
		<item>android</item>
		<item>com.android.systemui</item>
		</string-array>
		</resources>

core/res/res/values/symbols.xml

+2 −0

Original line number	Diff line number	Diff line
		@@ -3903,4 +3903,6 @@
		<java-symbol type="bool" name="config_expandLockScreenUserSwitcher" />

		<java-symbol type="string" name="loading" />

		<java-symbol type="array" name="config_toastCrossUserPackages" />
		</resources>

packages/SystemUI/src/com/android/systemui/toast/ToastUI.java

+3 −3

Original line number	Diff line number	Diff line
		@@ -95,7 +95,7 @@ public class ToastUI extends SystemUI implements CommandQueue.Callbacks {
		hideCurrentToast();
		}
		View view = mPresenter.getTextToastView(text);
		LayoutParams params = getLayoutParams(windowToken, duration);
		LayoutParams params = getLayoutParams(packageName, windowToken, duration);
		mCurrentToast = new ToastEntry(packageName, token, view, windowToken, callback);
		try {
		mWindowManager.addView(view, params);
		@@ -145,9 +145,9 @@ public class ToastUI extends SystemUI implements CommandQueue.Callbacks {
		mCurrentToast = null;
		}

		private LayoutParams getLayoutParams(IBinder windowToken, int duration) {
		private LayoutParams getLayoutParams(String packageName, IBinder windowToken, int duration) {
		WindowManager.LayoutParams params = new WindowManager.LayoutParams();
		mPresenter.startLayoutParams(params);
		mPresenter.startLayoutParams(params, packageName);
		int gravity = mContext.getResources().getInteger(
		com.android.internal.R.integer.config_toastDefaultGravity);
		int yOffset = mContext.getResources().getDimensionPixelSize(R.dimen.toast_y_offset);