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/*
* Copyright (C) 2016 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;
import android.content.Intent;
import android.os.Bundle;
import java.io.FileDescriptor;
import java.io.PrintWriter;
/**
* LauncherCallbacks is an interface used to extend the Launcher activity. It includes many hooks
* in order to add additional functionality. Some of these are very general, and give extending
* classes the ability to react to Activity life-cycle or specific user interactions. Others
* are more specific and relate to replacing parts of the application, for example, the search
* interface or the wallpaper picker.
*/
public interface LauncherCallbacks {
/*
* Activity life-cycle methods. These methods are triggered after
* the code in the corresponding Launcher method is executed.
*/
void onCreate(Bundle savedInstanceState);
void onResume();
void onStart();
void onStop();
void onPause();
void onDestroy();
void onSaveInstanceState(Bundle outState);
void onActivityResult(int requestCode, int resultCode, Intent data);
void onRequestPermissionsResult(int requestCode, String[] permissions,
int[] grantResults);
void onAttachedToWindow();
void onDetachedFromWindow();
void dump(String prefix, FileDescriptor fd, PrintWriter w, String[] args);
void onHomeIntent(boolean internalStateHandled);
boolean handleBackPressed();
void onTrimMemory(int level);
/**
* Called when the launcher state changed
*/
default void onStateChanged() { }
/*
* Extension points for providing custom behavior on certain user interactions.
*/
void onLauncherProviderChange();
/**
* Starts a search with {@param initialQuery}. Return false if search was not started.
*/
boolean startSearch(
String initialQuery, boolean selectInitialQuery, Bundle appSearchData);
}
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