Merge "Add nullability annotations to some InputDevice APIs"

core/api/current.txt

@@ -18530,7 +18530,7 @@ package android.hardware.fingerprint {
 package android.hardware.input {
 
   public final class InputManager {
-    method public android.view.InputDevice getInputDevice(int);
+    method @Nullable public android.view.InputDevice getInputDevice(int);
     method public int[] getInputDeviceIds();
     method @FloatRange(from=0, to=1) public float getMaximumObscuringOpacityForTouch();
     method public void registerInputDeviceListener(android.hardware.input.InputManager.InputDeviceListener, android.os.Handler);
@@ -48166,7 +48166,7 @@ package android.view {
     method @NonNull public android.hardware.BatteryState getBatteryState();
     method public int getControllerNumber();
     method public String getDescriptor();
-    method public static android.view.InputDevice getDevice(int);
+    method @Nullable public static android.view.InputDevice getDevice(int);
     method public static int[] getDeviceIds();
     method public int getId();
     method public android.view.KeyCharacterMap getKeyCharacterMap();

core/java/android/hardware/input/InputManager.java

@@ -346,6 +346,7 @@ public final class InputManager {
      * @param id The device id.
      * @return The input device or null if not found.
      */
+    @Nullable
     public InputDevice getInputDevice(int id) {
         synchronized (mInputDevicesLock) {
             populateInputDevicesLocked();

core/java/android/view/InputDevice.java

@@ -18,6 +18,7 @@ package android.view;
 
 import android.annotation.IntDef;
 import android.annotation.NonNull;
+import android.annotation.Nullable;
 import android.annotation.RequiresPermission;
 import android.annotation.TestApi;
 import android.compat.annotation.UnsupportedAppUsage;
@@ -517,6 +518,7 @@ public final class InputDevice implements Parcelable {
      * @param id The device id.
      * @return The input device or null if not found.
      */
+    @Nullable
     public static InputDevice getDevice(int id) {
         return InputManager.getInstance().getInputDevice(id);
     }