/** 对话框 - 显示 */
protected void showLoadingDialog(String text) {
if (text != null) {
mLoadingDialog.setText(text);
}
mLoadingDialog.show();
mLoadingDialog.setCanceledOnTouchOutside(false);
}
/** 对话框-消失 */
protected void dismissLoadingDialog() {
if (mLoadingDialog.isShowing()) {
mLoadingDialog.dismiss();
}
}