关于android:使用Data-Ability读取系统设置项

SystemSettingUtil工具类

public class SystemSettingUtil {    private static final int LOG_DOMAIN = 218107648;    private static final String TAG = "SystemSettingUtil";    private static final HiLogLabel LOG_LABEL = new HiLogLabel(0, LOG_DOMAIN, TAG);    private static final String LOG_FORMAT = "%{public}s";    private static final String GET_GLOBAL = "GET_global";    private static final String GET_SECURE = "GET_secure";    private static final String GET_SYSTEM = "GET_system";    private static final String SETTING_VALUE = "value";    private static final String SYSTEM_SETTING = "dataability:///settings";    public static String getGlobal(String key) {        return getSettingValueAsString(key, GET_GLOBAL);    }    public static String getSecure(String key) {        return getSettingValueAsString(key, GET_SECURE);    }    public static String getSystem(String key) {        return getSettingValueAsString(key, GET_SYSTEM);    }    public static String getSettingValueAsString(String key, String method) {        if (TextTool.isNullOrEmpty(key)) {            HiLog.warn(LOG_LABEL, LOG_FORMAT, "getSettingValueAsString -> key is null or empty");            return "";        } else if (TextTool.isNullOrEmpty(method)) {            HiLog.warn(LOG_LABEL, LOG_FORMAT, "getSettingValueAsString -> method is null or empty");            return "";        } else {            try {                return DataAbilityHelper.creator(ContextUtil.getHapGlobalContext()).call(Uri.parse(SYSTEM_SETTING),                        method, key, null).getString(SETTING_VALUE, "");            } catch (IllegalArgumentException | IllegalStateException | DataAbilityRemoteException e) {                HiLog.error(LOG_LABEL, LOG_FORMAT, "getSettingValueAsString -> Exception");                return "";            }        }    }}

ContextUtil工具类

public class ContextUtil {     private static Context sHapGlobalContext;     public static Context getHapGlobalContext() {        return sHapGlobalContext;    }     public static void setHapGlobalContext(Context context) {        if (context != null) {            sHapGlobalContext = context;        }    }}

应用办法：

在MyApplication onInitialize调用ContextUtil.setHapGlobalContext(this)设置全局Context；

调用SystemSettingUtil.getXXX。

注：key常量可应用hdc shell执行以下命令获取。

settings list system

settings list secure

settings list global

代码里怎么辨别用户是否调整了零碎字体大小设置里【显示大小】？

https://developer.huawei.com/...

(出处: 论坛首页)

解决方案：

private static final String INIT_DPI = "init_dpi";private static final String DISPLAY_DENSITY_FORCED = "display_density_forced";SystemSettingUtil.getSecure(INIT_DPI);SystemSettingUtil.getSecure(DISPLAY_DENSITY_FORCED);

display_density_forced为空即显示大小为默认，display_density_forced<init_dpi显示大小为小，display_density_forced>init_dpi显示大小为大，未修改过显示大小时两项都为空。

原文链接：https://developer.huawei.com/...
原作者：