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Commit 853c0f31 authored by Charles Chen's avatar Charles Chen
Browse files

Release Context#isUiContext(Context) 

The purpose of this API is to verify whether a context is an
UI context or not. We can also leverage the jetpack WindowManager
to all kinds of UI contexts v.s. Activities only currently by
release this API.

Bug: 170275820
Test: atest ContextIsUiContextTest
Change-Id: I334b63e555331e46d0a94ec9f721bd675f1ab331
parent 857df8d6

core/api/current.txt

+1 −0
Original line number Diff line number Diff line
@@ -10158,6 +10158,7 @@ package android.content { 
    method public abstract void grantUriPermission(String, android.net.Uri, int);

    method public abstract boolean isDeviceProtectedStorage();

    method public boolean isRestricted();

    method public static boolean isUiContext(@NonNull android.content.Context);

    method public abstract boolean moveDatabaseFrom(android.content.Context, String);

    method public abstract boolean moveSharedPreferencesFrom(android.content.Context, String);

    method @NonNull public final android.content.res.TypedArray obtainStyledAttributes(@NonNull @StyleableRes int[]);

core/java/android/content/Context.java

+15 −0
Original line number Diff line number Diff line
@@ -6285,4 +6285,19 @@ public abstract class Context { 
    public boolean isUiContext() {

        throw new RuntimeException("Not implemented. Must override in a subclass.");

    }



    /**

     * Returns {@code true} if the context is a UI context which can access UI components such as

     * {@link WindowManager}, {@link android.view.LayoutInflater LayoutInflater} or

     * {@link android.app.WallpaperManager WallpaperManager}.

     * <p>

     * Examples of UI contexts are

     * an {@link android.app.Activity Activity}, a context created from

     * {@link #createWindowContext(int, Bundle)} or

     * {@link android.inputmethodservice.InputMethodService InputMethodService}

     * </p>

     */

    public static boolean isUiContext(@NonNull Context context) {

        return context.isUiContext();

    }

}