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author | Sunny Goyal <sunnygoyal@google.com> | 2017-10-02 12:45:10 -0700 |
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committer | Sunny Goyal <sunnygoyal@google.com> | 2017-10-02 14:50:09 -0700 |
commit | 326403e958344751539cefec62ecbc6d28abd2ce (patch) | |
tree | f85bf31497e8addcc28542990d897cb234b5fb0d /src/com/android/launcher3/util | |
parent | ec21a599f4cf68c74a2f7aad6797c0ba6d7409ad (diff) | |
download | android_packages_apps_Trebuchet-326403e958344751539cefec62ecbc6d28abd2ce.tar.gz android_packages_apps_Trebuchet-326403e958344751539cefec62ecbc6d28abd2ce.tar.bz2 android_packages_apps_Trebuchet-326403e958344751539cefec62ecbc6d28abd2ce.zip |
Moving some calls off the UI thread
This saves ~5ms in onNewIntent
Bug: 67305604
Change-Id: Ic97727b1c526e50bd3c8a1d8f511e1d7fd5e05e7
Diffstat (limited to 'src/com/android/launcher3/util')
-rw-r--r-- | src/com/android/launcher3/util/UiThreadHelper.java | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/src/com/android/launcher3/util/UiThreadHelper.java b/src/com/android/launcher3/util/UiThreadHelper.java new file mode 100644 index 000000000..27140a113 --- /dev/null +++ b/src/com/android/launcher3/util/UiThreadHelper.java @@ -0,0 +1,76 @@ +/* + * Copyright (C) 2017 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package com.android.launcher3.util; + +import android.content.Context; +import android.os.Handler; +import android.os.HandlerThread; +import android.os.IBinder; +import android.os.Looper; +import android.os.Message; +import android.os.Process; +import android.view.inputmethod.InputMethodManager; + +/** + * Utility class for offloading some class from UI thread + */ +public class UiThreadHelper { + + private static HandlerThread sHandlerThread; + private static Handler sHandler; + + private static final int MSG_HIDE_KEYBOARD = 1; + + public static Looper getBackgroundLooper() { + if (sHandlerThread == null) { + sHandlerThread = + new HandlerThread("UiThreadHelper", Process.THREAD_PRIORITY_FOREGROUND); + sHandlerThread.start(); + } + return sHandlerThread.getLooper(); + } + + private static Handler getHandler(Context context) { + if (sHandler == null) { + sHandler = new Handler(getBackgroundLooper(), + new UiCallbacks(context.getApplicationContext())); + } + return sHandler; + } + + public static void hideKeyboardAsync(Context context, IBinder token) { + Message.obtain(getHandler(context), MSG_HIDE_KEYBOARD, token).sendToTarget(); + } + + private static class UiCallbacks implements Handler.Callback { + + private final InputMethodManager mIMM; + + UiCallbacks(Context context) { + mIMM = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE); + } + + @Override + public boolean handleMessage(Message message) { + switch (message.what) { + case MSG_HIDE_KEYBOARD: + mIMM.hideSoftInputFromWindow((IBinder) message.obj, 0); + return true; + } + return false; + } + } +} |