Android中系统应用适配未知来源的管理权限

来源：互联网发布：苹果之家淘宝烂到爆编辑：程序博客网时间：2024/05/18 03:30

Android中为了防止一些不良应用的随便静默安装，设置了未知来源应用的开关，在不同的android版本中使上会有所区别

 /**     * 打开未知来源权限     * @param context     */    public static void openNonMarketAppsPerm(Context context){        if (Build.VERSION.SDK_INT < 17) {            int flag = Settings.Secure.getInt(context.getContentResolver(),                    Settings.Secure.INSTALL_NON_MARKET_APPS, 0);            if(flag == 0){                Settings.Secure.putInt(context.getContentResolver(),                        Settings.Secure.INSTALL_NON_MARKET_APPS, 1);            }        } else {            int flag = Settings.Global.getInt(context.getContentResolver(),                    Settings.Global.INSTALL_NON_MARKET_APPS, 0);            if(flag == 0){                Settings.Global.putInt(context.getContentResolver(),                        Settings.Global.INSTALL_NON_MARKET_APPS, 1);            }        }    } /**     * 关闭未知来源权限     * @param context     */    public static void closeNonMarketAppsPerm(Context context){        if (Build.VERSION.SDK_INT < 17) {            int flag = Settings.Secure.getInt(context.getContentResolver(),                    Settings.Secure.INSTALL_NON_MARKET_APPS, 1);            if(flag == 1) {                Settings.Secure.putInt(context.getContentResolver(),                        Settings.Secure.INSTALL_NON_MARKET_APPS, 0);            }        } else {            int flag= Settings.Global.getInt(context.getContentResolver(),                    Settings.Global.INSTALL_NON_MARKET_APPS, 1);            if (flag==1){                Settings.Global.putInt(context.getContentResolver(),                        Settings.Global.INSTALL_NON_MARKET_APPS, 0);            }        }    }    /**     * 检查状态是否打开     * @param context     */    public static boolean checkNonMarketAppsPermStatus(Context context){        boolean unKnowSource=false;        if (Build.VERSION.SDK_INT<17){            unKnowSource=Settings.Secure.getInt(context.getContentResolver(),                    Settings.Secure.INSTALL_NON_MARKET_APPS, 0)==1;        }else{            unKnowSource=Settings.Global.getInt(context.getContentResolver(),                    Settings.Global.INSTALL_NON_MARKET_APPS, 0)==1;        }        return unKnowSource;    }

如果兼容4.0以下版本则需要把Settings.Secure 和Settings.Global 改为：Settings.System方式获取未知来源的状态或修改状态

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