ContextWrapper

/*
* Copyright (C) 2006 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 android.content;

import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.content.res.AssetManager;
import android.content.res.Resources;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteDatabase.CursorFactory;
import android.graphics.Bitmap;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.os.Looper;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;

/**
* Proxying implementation of Context that simply delegates all of its calls to
* another Context. Can be subclassed to modify behavior without changing
* the original Context.
*/
public class ContextWrapper extends Context {
Context mBase;

public ContextWrapper(Context base) {
mBase = base;
}

/**
* Set the base context for this ContextWrapper. All calls will then be
* delegated to the base context. Throws
* IllegalStateException if a base context has already been set.
*
* @param base The new base context for this wrapper.
*/
protected void attachBaseContext(Context base) {
if (mBase != null) {
throw new IllegalStateException("Base context already set");
}
mBase = base;
}

/**
* @return the base context as set by the constructor or setBaseContext
*/
public Context getBaseContext() {
return mBase;
}

@Override
public AssetManager getAssets() {
return mBase.getAssets();
}

@Override
public Resources getResources()
{
return mBase.getResources();
}

@Override
public PackageManager getPackageManager() {
return mBase.getPackageManager();
}

@Override
public ContentResolver getContentResolver() {
return mBase.getContentResolver();
}

@Override
public Looper getMainLooper() {
return mBase.getMainLooper();
}

@Override
public Context getApplicationContext() {
return mBase.getApplicationContext();
}

@Override
public void setTheme(int resid) {
mBase.setTheme(resid);
}

@Override
public Resources.Theme getTheme() {
return mBase.getTheme();
}

@Override
public ClassLoader getClassLoader() {
return mBase.getClassLoader();
}

@Override
public String getPackageName() {
return mBase.getPackageName();
}

@Override
public ApplicationInfo getApplicationInfo() {
return mBase.getApplicationInfo();
}

@Override
public String getPackageResourcePath() {
return mBase.getPackageResourcePath();
}

@Override
public String getPackageCodePath() {
return mBase.getPackageCodePath();
}

/** @hide */
@Override
public File getSharedPrefsFile(String name) {
return mBase.getSharedPrefsFile(name);
}

@Override
public SharedPreferences getSharedPreferences(String name, int mode) {
return mBase.getSharedPreferences(name, mode);
}

@Override
public FileInputStream openFileInput(String name)
throws FileNotFoundException {
return mBase.openFileInput(name);
}

@Override
public FileOutputStream openFileOutput(String name, int mode)
throws FileNotFoundException {
return mBase.openFileOutput(name, mode);
}

@Override
public boolean deleteFile(String name) {
return mBase.deleteFile(name);
}

@Override
public File getFileStreamPath(String name) {
return mBase.getFileStreamPath(name);
}

@Override
public String[] fileList() {
return mBase.fileList();
}

@Override
public File getFilesDir() {
return mBase.getFilesDir();
}

@Override
public File getExternalFilesDir(String type) {
return mBase.getExternalFilesDir(type);
}

@Override
public File getCacheDir() {
return mBase.getCacheDir();
}

@Override
public File getExternalCacheDir() {
return mBase.getExternalCacheDir();
}

@Override
public File getDir(String name, int mode) {
return mBase.getDir(name, mode);
}

@Override
public SQLiteDatabase openOrCreateDatabase(String name, int mode, CursorFactory factory) {
return mBase.openOrCreateDatabase(name, mode, factory);
}

@Override
public boolean deleteDatabase(String name) {
return mBase.deleteDatabase(name);
}

@Override
public File getDatabasePath(String name) {
return mBase.getDatabasePath(name);
}

@Override
public String[] databaseList() {
return mBase.databaseList();
}

@Override
public Drawable getWallpaper() {
return mBase.getWallpaper();
}

@Override
public Drawable peekWallpaper() {
return mBase.peekWallpaper();
}

@Override
public int getWallpaperDesiredMinimumWidth() {
return mBase.getWallpaperDesiredMinimumWidth();
}

@Override
public int getWallpaperDesiredMinimumHeight() {
return mBase.getWallpaperDesiredMinimumHeight();
}

@Override
public void setWallpaper(Bitmap bitmap) throws IOException {
mBase.setWallpaper(bitmap);
}

@Override
public void setWallpaper(InputStream data) throws IOException {
mBase.setWallpaper(data);
}

@Override
public void clearWallpaper() throws IOException {
mBase.clearWallpaper();
}

@Override
public void startActivity(Intent intent) {
mBase.startActivity(intent);
}

@Override
public void startIntentSender(IntentSender intent,
Intent fillInIntent, int flagsMask, int flagsValues, int extraFlags)
throws IntentSender.SendIntentException {
mBase.startIntentSender(intent, fillInIntent, flagsMask,
flagsValues, extraFlags);
}

@Override
public void sendBroadcast(Intent intent) {
mBase.sendBroadcast(intent);
}

@Override
public void sendBroadcast(Intent intent, String receiverPermission) {
mBase.sendBroadcast(intent, receiverPermission);
}

@Override
public void sendOrderedBroadcast(Intent intent,
String receiverPermission) {
mBase.sendOrderedBroadcast(intent, receiverPermission);
}

@Override
public void sendOrderedBroadcast(
Intent intent, String receiverPermission, BroadcastReceiver resultReceiver,
Handler scheduler, int initialCode, String initialData,
Bundle initialExtras) {
mBase.sendOrderedBroadcast(intent, receiverPermission,
resultReceiver, scheduler, initialCode,
initialData, initialExtras);
}

@Override
public void sendStickyBroadcast(Intent intent) {
mBase.sendStickyBroadcast(intent);
}

@Override
public void sendStickyOrderedBroadcast(
Intent intent, BroadcastReceiver resultReceiver,
Handler scheduler, int initialCode, String initialData,
Bundle initialExtras) {
mBase.sendStickyOrderedBroadcast(intent,
resultReceiver, scheduler, initialCode,
initialData, initialExtras);
}

@Override
public void removeStickyBroadcast(Intent intent) {
mBase.removeStickyBroadcast(intent);
}

@Override
public Intent registerReceiver(
BroadcastReceiver receiver, IntentFilter filter) {
return mBase.registerReceiver(receiver, filter);
}

@Override
public Intent registerReceiver(
BroadcastReceiver receiver, IntentFilter filter,
String broadcastPermission, Handler scheduler) {
return mBase.registerReceiver(receiver, filter, broadcastPermission,
scheduler);
}

@Override
public void unregisterReceiver(BroadcastReceiver receiver) {
mBase.unregisterReceiver(receiver);
}

@Override
public ComponentName startService(Intent service) {
return mBase.startService(service);
}

@Override
public boolean stopService(Intent name) {
return mBase.stopService(name);
}

@Override
public boolean bindService(Intent service, ServiceConnection conn,
int flags) {
return mBase.bindService(service, conn, flags);
}

@Override
public void unbindService(ServiceConnection conn) {
mBase.unbindService(conn);
}

@Override
public boolean startInstrumentation(ComponentName className,
String profileFile, Bundle arguments) {
return mBase.startInstrumentation(className, profileFile, arguments);
}

@Override
public Object getSystemService(String name) {
return mBase.getSystemService(name);
}

@Override
public int checkPermission(String permission, int pid, int uid) {
return mBase.checkPermission(permission, pid, uid);
}

@Override
public int checkCallingPermission(String permission) {
return mBase.checkCallingPermission(permission);
}

@Override
public int checkCallingOrSelfPermission(String permission) {
return mBase.checkCallingOrSelfPermission(permission);
}

@Override
public void enforcePermission(
String permission, int pid, int uid, String message) {
mBase.enforcePermission(permission, pid, uid, message);
}

@Override
public void enforceCallingPermission(String permission, String message) {
mBase.enforceCallingPermission(permission, message);
}

@Override
public void enforceCallingOrSelfPermission(
String permission, String message) {
mBase.enforceCallingOrSelfPermission(permission, message);
}

@Override
public void grantUriPermission(String toPackage, Uri uri, int modeFlags) {
mBase.grantUriPermission(toPackage, uri, modeFlags);
}

@Override
public void revokeUriPermission(Uri uri, int modeFlags) {
mBase.revokeUriPermission(uri, modeFlags);
}

@Override
public int checkUriPermission(Uri uri, int pid, int uid, int modeFlags) {
return mBase.checkUriPermission(uri, pid, uid, modeFlags);
}

@Override
public int checkCallingUriPermission(Uri uri, int modeFlags) {
return mBase.checkCallingUriPermission(uri, modeFlags);
}

@Override
public int checkCallingOrSelfUriPermission(Uri uri, int modeFlags) {
return mBase.checkCallingOrSelfUriPermission(uri, modeFlags);
}

@Override
public int checkUriPermission(Uri uri, String readPermission,
String writePermission, int pid, int uid, int modeFlags) {
return mBase.checkUriPermission(uri, readPermission, writePermission,
pid, uid, modeFlags);
}

@Override
public void enforceUriPermission(
Uri uri, int pid, int uid, int modeFlags, String message) {
mBase.enforceUriPermission(uri, pid, uid, modeFlags, message);
}

@Override
public void enforceCallingUriPermission(
Uri uri, int modeFlags, String message) {
mBase.enforceCallingUriPermission(uri, modeFlags, message);
}

@Override
public void enforceCallingOrSelfUriPermission(
Uri uri, int modeFlags, String message) {
mBase.enforceCallingOrSelfUriPermission(uri, modeFlags, message);
}

@Override
public void enforceUriPermission(
Uri uri, String readPermission, String writePermission,
int pid, int uid, int modeFlags, String message) {
mBase.enforceUriPermission(
uri, readPermission, writePermission, pid, uid, modeFlags,
message);
}

@Override
public Context createPackageContext(String packageName, int flags)
throws PackageManager.NameNotFoundException {
return mBase.createPackageContext(packageName, flags);
}

@Override
public boolean isRestricted() {
return mBase.isRestricted();
}
}

转载于:https://www.cnblogs.com/flyingsir/p/3958207.html