modes = (android.os.ServiceManager.getService("display").getDisplayInfo(android.view.Display.DEFAULT_DISPLAY)).supportedModes;
s = "";
for (i = 0; i < modes.length; i++) {
    m = modes[i];
    s += "id=" + m.getModeId() + ": " + m.getRefreshRate() + "Hz\n";
}
s.trim();
// 获取当前显示屏支持的刷新率以及对应ID

#MVEL表达式 #Javascript