/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.launcher3;
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import android.content.Intent;
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import android.os.Bundle;
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import java.io.FileDescriptor;
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import java.io.PrintWriter;
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/**
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* LauncherCallbacks is an interface used to extend the Launcher activity. It includes many hooks
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* in order to add additional functionality. Some of these are very general, and give extending
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* classes the ability to react to Activity life-cycle or specific user interactions. Others
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* are more specific and relate to replacing parts of the application, for example, the search
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* interface or the wallpaper picker.
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*/
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public interface LauncherCallbacks {
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/*
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* Activity life-cycle methods. These methods are triggered after
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* the code in the corresponding Launcher method is executed.
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*/
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void onCreate(Bundle savedInstanceState);
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void onResume();
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void onStart();
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void onStop();
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void onPause();
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void onDestroy();
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void onSaveInstanceState(Bundle outState);
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void onActivityResult(int requestCode, int resultCode, Intent data);
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void onRequestPermissionsResult(int requestCode, String[] permissions,
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int[] grantResults);
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void onAttachedToWindow();
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void onDetachedFromWindow();
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void dump(String prefix, FileDescriptor fd, PrintWriter w, String[] args);
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void onHomeIntent(boolean internalStateHandled);
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boolean handleBackPressed();
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void onTrimMemory(int level);
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/**
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* Called when the launcher state changed
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*/
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default void onStateChanged() { }
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/*
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* Extension points for providing custom behavior on certain user interactions.
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*/
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void onLauncherProviderChange();
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/**
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* Starts a search with {@param initialQuery}. Return false if search was not started.
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*/
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boolean startSearch(
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String initialQuery, boolean selectInitialQuery, Bundle appSearchData);
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}
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