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Move LauncherApplication's state and code to LauncherAppState.

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This removes Launcher's static data and other state out of
the Application object. Now LauncherApplication (extends
Application) exists only to instantiate LauncherAppState.

Change-Id: I4e323bd78b77536b92054105536a55c0c2c19ba8
This commit is contained in:
Daniel Sandler
2013-06-11 14:45:48 -04:00
parent ecf33e4819
commit cc8befac35
23 changed files with 230 additions and 175 deletions
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116
src/com/android/launcher3/LauncherApplication.java
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@@ -1,5 +1,5 @@
/*
* Copyright (C) 2008 The Android Open Source Project
* Copyright (C) 2013 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.
@@ -26,126 +26,18 @@ import android.content.res.Configuration;
import android.database.ContentObserver;
import android.os.Handler;
import com.android.launcher3.R;
import java.lang.ref.WeakReference;
public class LauncherApplication extends Application {
private LauncherModel mModel;
private IconCache mIconCache;
private WidgetPreviewLoader.CacheDb mWidgetPreviewCacheDb;
private static boolean sIsScreenLarge;
private static float sScreenDensity;
private static int sLongPressTimeout = 300;
private static final String sSharedPreferencesKey = "com.android.launcher3.prefs";
WeakReference<LauncherProvider> mLauncherProvider;
@Override
public void onCreate() {
super.onCreate();
// set sIsScreenXLarge and sScreenDensity *before* creating icon cache
sIsScreenLarge = getResources().getBoolean(R.bool.is_large_screen);
sScreenDensity = getResources().getDisplayMetrics().density;
mWidgetPreviewCacheDb = new WidgetPreviewLoader.CacheDb(this);
mIconCache = new IconCache(this);
mModel = new LauncherModel(this, mIconCache);
// Register intent receivers
IntentFilter filter = new IntentFilter(Intent.ACTION_PACKAGE_ADDED);
filter.addAction(Intent.ACTION_PACKAGE_REMOVED);
filter.addAction(Intent.ACTION_PACKAGE_CHANGED);
filter.addDataScheme("package");
registerReceiver(mModel, filter);
filter = new IntentFilter();
filter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE);
filter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE);
filter.addAction(Intent.ACTION_LOCALE_CHANGED);
filter.addAction(Intent.ACTION_CONFIGURATION_CHANGED);
registerReceiver(mModel, filter);
filter = new IntentFilter();
filter.addAction(SearchManager.INTENT_GLOBAL_SEARCH_ACTIVITY_CHANGED);
registerReceiver(mModel, filter);
filter = new IntentFilter();
filter.addAction(SearchManager.INTENT_ACTION_SEARCHABLES_CHANGED);
registerReceiver(mModel, filter);
// Register for changes to the favorites
ContentResolver resolver = getContentResolver();
resolver.registerContentObserver(LauncherSettings.Favorites.CONTENT_URI, true,
mFavoritesObserver);
LauncherAppState.getInstance().init(getApplicationContext());
}
/**
* There's no guarantee that this function is ever called.
*/
@Override
public void onTerminate() {
super.onTerminate();
unregisterReceiver(mModel);
ContentResolver resolver = getContentResolver();
resolver.unregisterContentObserver(mFavoritesObserver);
LauncherAppState.getInstance().onTerminate();
}
/**
* Receives notifications whenever the user favorites have changed.
*/
private final ContentObserver mFavoritesObserver = new ContentObserver(new Handler()) {
@Override
public void onChange(boolean selfChange) {
// If the database has ever changed, then we really need to force a reload of the
// workspace on the next load
mModel.resetLoadedState(false, true);
mModel.startLoaderFromBackground();
}
};
LauncherModel setLauncher(Launcher launcher) {
mModel.initialize(launcher);
return mModel;
}
IconCache getIconCache() {
return mIconCache;
}
LauncherModel getModel() {
return mModel;
}
WidgetPreviewLoader.CacheDb getWidgetPreviewCacheDb() {
return mWidgetPreviewCacheDb;
}
void setLauncherProvider(LauncherProvider provider) {
mLauncherProvider = new WeakReference<LauncherProvider>(provider);
}
LauncherProvider getLauncherProvider() {
return mLauncherProvider.get();
}
public static String getSharedPreferencesKey() {
return sSharedPreferencesKey;
}
public static boolean isScreenLarge() {
return sIsScreenLarge;
}
public static boolean isScreenLandscape(Context context) {
return context.getResources().getConfiguration().orientation ==
Configuration.ORIENTATION_LANDSCAPE;
}
public static float getScreenDensity() {
return sScreenDensity;
}
public static int getLongPressTimeout() {
return sLongPressTimeout;
}
}
}