定制固件Chrome的主页

1.部分营运商版本的固件&＃xff0c;会定制chrome主页&＃xff0c;实现&＃xff1a;

提供一个authorities&＃61;"com.android.partnerbrowsercustomizations"的ContentProvider即可。

可定义在固件中packages/providers/PartnerBookmarksProviderProvider里

AndroidManifest.xml申明&＃xff1a;

       

            android:authorities&＃61;"com.android.partnerbrowsercustomizations" />

ChromHomepageProvider部分实现代码&＃xff1a;

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.provider.Settings;
import android.net.Uri;
import android.util.Log;


public class ChromHomepageProvider extends ContentProvider {
    private static final String TAG &＃61; "PartnerHomepageProvider";

    //home page
    private static String HOMEPAGE_URI &＃61; "http://www.bing.com/";

    private static final int URI_MATCH_HOMEPAGE &＃61; 0;

    private static final UriMatcher URI_MATCHER &＃61; new UriMatcher(UriMatcher.NO_MATCH);

    // DB table name
    private static final String TABLE_HOMEPAGE &＃61; "homepage";

    static {
        final UriMatcher matcher &＃61; URI_MATCHER;
        final String authority &＃61; "com.android.partnerbrowsercustomizations";
        matcher.addURI(authority, "homepage", URI_MATCH_HOMEPAGE);
    }

    &＃64;Override
    public boolean onCreate() {
        Log.d(TAG, "---oncreate");
        return true;
    }

    &＃64;Override
    public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
        Log.d(TAG, "---query");
        final int match &＃61; URI_MATCHER.match(uri);
        switch (URI_MATCHER.match(uri)) {

            case URI_MATCH_HOMEPAGE:

                //1.此处可添加区分营运商的一些信息

                    MatrixCursor cursor &＃61; new MatrixCursor(new String[]{"homepage"}, 1);

                    cursor.addRow(new Object[]{HOMEPAGE_URI});

                    return cursor;

            default:

                return null;

        }

    }



    &＃64;Override

    public String getType(Uri uri) {

        switch (URI_MATCHER.match(uri)) {

            case URI_MATCH_HOMEPAGE:

                return "vnd.android.cursor.item/partnerhomepage";

            default:

                return null;

        }

    }



    &＃64;Override

    public Uri insert(Uri uri, ContentValues values) {

        throw new UnsupportedOperationException();

    }



    &＃64;Override

    public int delete(Uri uri, String selection, String[] selectionArgs) {

        throw new UnsupportedOperationException();

    }



    &＃64;Override

    public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {

        throw new UnsupportedOperationException();

    }

}

如果query函数中添加区分营运商信息的地方在初始化未设置正确&＃xff08;即返回的是null&＃xff09;然后打开了chrome&＃xff0c;随后设置正确,Chrome只会显示主页按钮。清空chrome数据后可正常显示主页。