Android和IOS移动设备:计算浏览器屏幕高度，不包括地址栏和导航栏高度

int screenHeight = getResources().getDisplayMetrics().heightPixels;
Rect rectangle = new Rect();
Window window = getWindow();
window.getDecorView().getWindowVisibleDisplayFrame(rectangle);
int statusBarHeight = rectangle.top;
int navigationBarHeight = 0;
int resourceId = getResources().getIdentifier("navigation_bar_height", "dimen", "android");
if (resourceId > 0) {
    navigationBarHeight = getResources().getDimensionPixelSize(resourceId);
}
int browserHeight = screenHeight - statusBarHeight - navigationBarHeight;

CGFloat screenHeight = [[UIScreen mainScreen] bounds].size.height;
CGFloat statusBarHeight = [UIApplication sharedApplication].statusBarFrame.size.height;
CGFloat navigationBarHeight = self.navigationController.navigationBar.frame.size.height;
CGFloat browserHeight = screenHeight - statusBarHeight - navigationBarHeight;