2011.09.15 ——— android 圆桌面添加快捷方式之判断是否存在无效

2011.09.15 ——— android 桌面添加快捷方式之判断是否存在无效
2011.09.15 ——— android 桌面添加快捷方式之判断是否存在无效

参考：http://maxuefeng.blog.51cto.com/1876326/528645
http://blog.163.com/ethan_518/blog/static/177959139201161934629363/

前面写了如何创建 删除和判断快捷方式的方法 但是后来发现判断快捷方式的方法不是总是很有效 上网查了下 发现大家的为问题都是2.2版本之后的就判断不正确了

在此 将原来的判断方法贴一下

private boolean hasShortCut() {        ContentResolver resolver = getContentResolver();        Cursor cursor = resolver.query(Uri.parse("content://com.android.launcher.settings/favorites?notify=true"), null, "title=?",                        new String[] {getString(R.string.app_name)}, null);        if (cursor != null && cursor.moveToFirst()) {                cursor.close();                return true;        }        return false;	}

后来 我看了一下2.2版本和1.5版本的launcher中的清单文件

1.5的如下：

<!-- Intent received used to install shortcuts from other applications -->        <receiver            android:name=".InstallShortcutReceiver"            android:permission="com.lp.launcher.permission.INSTALL_SHORTCUT">            <intent-filter>                <action android:name="com.lp.launcher.action.INSTALL_SHORTCUT" />            </intent-filter>        </receiver>        <!-- Intent received used to uninstall shortcuts from other applications -->        <receiver            android:name=".UninstallShortcutReceiver"            android:permission="com.lp.launcher.permission.UNINSTALL_SHORTCUT">            <intent-filter>                <action android:name="com.lp.launcher.action.UNINSTALL_SHORTCUT" />            </intent-filter>        </receiver>        <!-- The settings provider contains Home's data, like the workspace favorites -->        <provider            android:name="LauncherProvider"            android:authorities="com.lp.launcher.settings"            android:writePermission="com.lp.launcher.permission.WRITE_SETTINGS"            android:readPermission="com.lp.launcher.permission.READ_SETTINGS" />

2.2的如下：

<!-- Intent received used to install shortcuts from other applications -->        <receiver            android:name="com.android.launcher2.InstallShortcutReceiver"            android:permission="com.android.launcher.permission.INSTALL_SHORTCUT">            <intent-filter>                <action android:name="com.android.launcher.action.INSTALL_SHORTCUT" />            </intent-filter>        </receiver>        <!-- Intent received used to uninstall shortcuts from other applications -->        <receiver            android:name="com.android.launcher2.UninstallShortcutReceiver"            android:permission="com.android.launcher.permission.UNINSTALL_SHORTCUT">            <intent-filter>                <action android:name="com.android.launcher.action.UNINSTALL_SHORTCUT" />            </intent-filter>        </receiver>        <!-- The settings provider contains Home's data, like the workspace favorites -->        <provider            android:name="com.android.launcher2.LauncherProvider"            android:authorities="com.android.launcher2.settings"            android:writePermission="com.android.launcher.permission.WRITE_SETTINGS"            android:readPermission="com.android.launcher.permission.READ_SETTINGS" />

可以看出来 创建和删除快捷方式的receiver没什么变化
但是查询的provider有了变化

android:authorities="com.android.launcher.settings"

android:authorities="com.android.launcher2.settings"

所以说我们的方法用在2.2之后的版本是无效的

现修改代码如下：

public static boolean hasShortCut(Context context) {		String url = "";		System.out.println(getSystemVersion());		if(getSystemVersion() < 8){			url = "content://com.android.launcher.settings/favorites?notify=true";		}else{			url = "content://com.android.launcher2.settings/favorites?notify=true";		}        ContentResolver resolver = context.getContentResolver();        Cursor cursor = resolver.query(Uri.parse(url), null, "title=?",                        new String[] {context.getString(R.string.app_name)}, null);        if (cursor != null && cursor.moveToFirst()) {                cursor.close();                return true;        }        return false;	}private static int getSystemVersion(){		return android.os.Build.VERSION.SDK_INT;	}