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项目中经常会遇到客户要求打开chrome浏览器默认进他们的官网，修改方法如下：
1. 在packages\providers\PartnerBookmarksProvider\src\com\android\providers\partnerbookmarks目录添加PartnerHomepageProviderExample.java文件，并修改文件中HOMEPAGE_URI变量为你自己想设置的网址，java文件内容如下：
// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.// Package path can be changed, but should match <manifest package="..."> in AndroidManifest.xml.
package com.android.providers.partnerbookmarks;import android.content.ContentProvider;
import android.content.ContentValues;
import android.content.UriMatcher;
import android.database.Cursor;
import android.database.MatrixCursor;
import android.net.Uri;// Class name can be changed, but should match <provider android:name="..."> in AndroidManifest.xml.
public class PartnerHomepageProviderExample extends ContentProvider {// "http://www.android.com/" is just an example. Please replace this to actual homepage.// Other strings in this class must remain as it is.private static String HOMEPAGE_URI = "http://www.contixo.com";private static final int URI_MATCH_HOMEPAGE = 0;private static final UriMatcher URI_MATCHER = new UriMatcher(UriMatcher.NO_MATCH);static {URI_MATCHER.addURI("com.android.partnerbrowsercustomizations", "homepage",URI_MATCH_HOMEPAGE);}@Overridepublic boolean onCreate() {return true;}@Overridepublic String getType(Uri uri) {// In fact, Chrome does not call this.// Just a recommaned ContentProvider practice in general.switch (URI_MATCHER.match(uri)) {case URI_MATCH_HOMEPAGE:return "vnd.android.cursor.item/partnerhomepage";default:return null;}}@Overridepublic Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,String sortOrder) {switch (URI_MATCHER.match(uri)) {case URI_MATCH_HOMEPAGE:MatrixCursor cursor = new MatrixCursor(new String[] { "homepage" }, 1);cursor.addRow(new Object[] { HOMEPAGE_URI });return cursor;default:return null;}}@Overridepublic Uri insert(Uri uri, ContentValues values) {throw new UnsupportedOperationException();}@Overridepublic int delete(Uri uri, String selection, String[] selectionArgs) {throw new UnsupportedOperationException();}@Overridepublic int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {throw new UnsupportedOperationException();}}
2. 在AndroidManifest.xml清单文件中注册内容提供者，也就是注册PartnerHomepageProviderExample.java这个组件，清单文件内容如下：
<?xml version="1.0" encoding="utf-8"?>
<!--Copyright (C) 2012 The Android Open Source ProjectLicensed 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 athttp://www.apache.org/licenses/LICENSE-2.0Unless required by applicable law or agreed to in writing, softwaredistributed 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 andlimitations under the License.
-->
<manifest xmlns:android="http://schemas.android.com/apk/res/android"package="com.android.providers.partnerbookmarks"><!-- We add an application tag here just to indicate the authorities --><application><provider android:name="PartnerBookmarksProvider"android:authorities="com.android.partnerbookmarks" /><provider android:name="PartnerHomepageProviderExample"android:authorities="com.android.partnerbrowsercustomizations" /></application><uses-sdk android:minSdkVersion="14" android:targetSdkVersion="14" />
</manifest>
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