android.content.res.Configuration#setToDefaults()源码实例Demo

private static Locale y(Context context) {
    Locale locale = null;
    try {
        Configuration configuration = new Configuration();
        configuration.setToDefaults();
        System.getConfiguration(context.getContentResolver(), configuration);
        if (configuration != null) {
            locale = configuration.locale;
        }
    } catch (Exception e) {
        bv.c(a, "fail to read user config locale");
    }
    if (locale == null) {
        return Locale.getDefault();
    }
    return locale;
}
 

@Override
public Resources getResources() {
    Resources res = super.getResources();
    //强制字体大小不随系统改变而改变：https://blog.csdn.net/xuxian361/article/details/74909602
    if (res.getConfiguration().fontScale != 1f) {
        Configuration newConfig = new Configuration();
        newConfig.setToDefaults();
        res.updateConfiguration(newConfig, res.getDisplayMetrics());
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
            createConfigurationContext(newConfig);
        } else {
            res.updateConfiguration(newConfig, res.getDisplayMetrics());
        }
    }
    return res;
}
 

/**
 * 重写getResources()方法，让APP的字体不受系统设置字体大小影响
 */
@Override
public Resources getResources() {
    Resources res = super.getResources();
    Configuration config = new Configuration();
    config.setToDefaults();
    res.updateConfiguration(config, res.getDisplayMetrics());
    return res;
}
 

@Override
public void onCreate() {
    super.onCreate();
    context = this;
    // 加载系统默认设置，字体不随用户设置变化
    Resources res = super.getResources();
    Configuration config = new Configuration();
    config.setToDefaults();
    res.updateConfiguration(config, res.getDisplayMetrics());


}
 

/**
 * 字体大小不随系统变化而变化 字体待定
 *
 * @return
 */
@Override
public Resources getResources() {
    Resources res = super.getResources();
    try {
        Configuration config = new Configuration();
        config.setToDefaults();
        res.updateConfiguration(config, res.getDisplayMetrics());
    } catch (Exception e) {
        e.printStackTrace();
    }
    return res;
}
 

/**
 * 放大系统字体将导致布局错乱，所以一般可将其屏蔽
 * @return
 */
@Override
public Resources getResources() {
	Resources res = super.getResources();
	if (res.getConfiguration().fontScale != 1) {
		Configuration newConfig = new Configuration();
		newConfig.setToDefaults();
		res.updateConfiguration(newConfig, res.getDisplayMetrics());
	}

	return res;
}
 

@Override
public Resources getResources() {
    Resources res = super.getResources();
    if (res.getConfiguration().fontScale != 1) {//非默认值
        Configuration newConfig = new Configuration();
        newConfig.setToDefaults();//设置默认
        res.updateConfiguration(newConfig, res.getDisplayMetrics());
    }
    return res;
}
 

/**
 * 文本不随系统字体增大儿增大
 *
 * @return
 */
@Override
public Resources getResources() {
    Resources res = super.getResources();
    Configuration config = new Configuration();
    config.setToDefaults();
    res.updateConfiguration(config, res.getDisplayMetrics());
    return res;
}
 

public Resources getResources() {
    Resources res = super.getResources();
    Configuration config = new Configuration();
    config.setToDefaults();
    res.updateConfiguration(config, res.getDisplayMetrics());
    return res;
}
 

public void applyThemeToActivity(Activity activity) {
    if (currentCustomThemePatcher == null && currentCustomTheme != null) {
        ThemeResourceFileBuilder.CustomTheme theme = ThemeResourceFileBuilder
                .createTheme(context, currentCustomTheme);
        currentTheme = theme;
        File themeFile = ThemeResourceFileBuilder.createThemeZipFile(context,
                theme.getResTable());
        currentCustomThemePatcher = new Theme(context, themeFile.getAbsolutePath());
    }
    ThemeResInfo currentBaseTheme = currentTheme;
    if (currentCustomTheme != null)
        currentBaseTheme = currentCustomTheme.baseThemeInfo;
    boolean isThemeDark = currentBaseTheme instanceof BaseTheme &&
            ((BaseTheme) currentBaseTheme).isDark;
    if (currentCustomThemePatcher == null && isThemeDark) {
        currentCustomThemePatcher = new Theme(activity.getAssets());
    }
    if (mNeedsApplyIrcColors) {
        Configuration c = new Configuration();
        c.setToDefaults();
        c.uiMode = Configuration.UI_MODE_TYPE_NORMAL;
        if (currentBaseTheme instanceof BaseTheme && ((BaseTheme) currentBaseTheme).isDark)
            c.uiMode |= Configuration.UI_MODE_NIGHT_YES;
        Resources r = new Resources(currentCustomThemePatcher != null ?
                currentCustomThemePatcher.getAssetManager() : context.getAssets(),
                new DisplayMetrics(), c);
        Resources.Theme t = r.newTheme();
        ThemeResInfo resInfo = currentTheme != null ? currentTheme : fallbackTheme;
        t.applyStyle(resInfo.getThemeResId(), true);
        IRCColorUtils.loadColors(t, resInfo.getIRCColorsResId());
        mNeedsApplyIrcColors = false;
    }
    if (currentCustomThemePatcher != null) {
        currentCustomThemePatcher.applyToActivity(activity);
    }
    if (isThemeDark)
        AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_YES);
    else
        AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_NO);
}
 

/**
 * 重写此方法, 使得app使用统一的默认配置
 */
@Override
public Resources getResources() {
	Resources res = super.getResources();
	Configuration config = new Configuration();
	config.setToDefaults();
	res.updateConfiguration(config, res.getDisplayMetrics());
	return res;
}
 

/**
 * 禁止改变字体大小
 */
@Override
public Resources getResources() {
    Resources res = super.getResources();
    Configuration config = new Configuration();
    config.setToDefaults();
    res.updateConfiguration(config, res.getDisplayMetrics());
    return res;
}
 

/**
 * 禁止改变字体大小
 */
@Override
public Resources getResources() {
    Resources res = super.getResources();
    Configuration config = new Configuration();
    config.setToDefaults();
    res.updateConfiguration(config, res.getDisplayMetrics());
    return res;
}
 

/**
 * 禁止改变字体大小
 */
@Override
public Resources getResources() {
    Resources res = super.getResources();
    Configuration config = new Configuration();
    config.setToDefaults();
    res.updateConfiguration(config, res.getDisplayMetrics());
    return res;
}