android.content.res.Resources.Theme#applyStyle()源码实例Demo

private Theme getPreloaderTheme() {
    Object tag = getTag();
    int style = ((tag != null) && (tag instanceof ShortcutInfo) &&
            (((ShortcutInfo) tag).container >= 0)) ? R.style.PreloadIcon_Folder
                    : R.style.PreloadIcon;
    Theme theme = sPreloaderThemes.get(style);
    if (theme == null) {
        theme = getResources().newTheme();
        theme.applyStyle(style, true);
        sPreloaderThemes.put(style, theme);
    }
    return theme;
}
 

private Theme getPreloaderTheme() {
    Object tag = getTag();
    int style = ((tag != null) && (tag instanceof ShortcutInfo) &&
            (((ShortcutInfo) tag).container >= 0)) ? R.style.PreloadIcon_Folder
                    : R.style.PreloadIcon;
    Theme theme = sPreloaderThemes.get(style);
    if (theme == null) {
        theme = getResources().newTheme();
        theme.applyStyle(style, true);
        sPreloaderThemes.put(style, theme);
    }
    return theme;
}
 

@Override
protected void onApplyThemeResource(Theme theme, int resid, boolean first) {
	theme.applyStyle(resid, true);
}
 

private void fillPluginTheme(ActivityPlugin plugin) {

        Theme pluginTheme = plugin.from().pluginRes.newTheme();
        pluginTheme.setTo(super.getTheme());
        plugin.setTheme(pluginTheme);

        PackageInfo packageInfo = plugin.from().pluginPkgInfo;
        String mClass = plugin.getTopActivityName();

        Log.i(TAG, "Before fill Plugin 's Theme,We check the plugin:info = "
                + packageInfo + "topActivityName = " + mClass);

        int defaultTheme = packageInfo.applicationInfo.theme;
        ActivityInfo curActivityInfo = null;
        for (ActivityInfo a : packageInfo.activities) {
            if (a.name.equals(mClass)) {
                curActivityInfo = a;
                if (a.theme != 0) {
                    defaultTheme = a.theme;
                } else if (defaultTheme != 0) {
                    // ignore
                } else {
                    // 支持不同系统的默认Theme
                    if (Build.VERSION.SDK_INT >= 14) {
                        defaultTheme = android.R.style.Theme_DeviceDefault;
                    } else {
                        defaultTheme = android.R.style.Theme;
                    }
                }
                break;
            }
        }

        pluginTheme.applyStyle(defaultTheme, true);

        setTheme(defaultTheme);
        if (curActivityInfo != null) {
            getWindow().setSoftInputMode(curActivityInfo.softInputMode);
        }

        if (CJConfig.usePluginTitle) {
            CharSequence title = null;
            try {
                title = CJTool.getAppName(this, plugin.getPluginPath());
            } catch (PackageManager.NameNotFoundException e) {
                e.printStackTrace();
            }
            if (title != null)
                setTitle(title);
        }

    }