android.support.design.widget.TabLayout以编程方式选择标签 [英] android.support.design.widget.TabLayout select Tab Programmatically

问题描述

我正在使用android.support.design.widget.TabLayout. 它有两个标签， 如果用户选择第二个选项卡在特定条件下，我希望用户重定向到第一个选项卡，并禁止他进入第二个选项卡，直到条件匹配为止. 为此，我尝试过

I am using android.support.design.widget.TabLayout. It has two tabs, If user selects second tab On particular condition I want user to redirect to first tab and disallow him to go to sencond tab until condition matches. To achieve this I tried,

tabLayout.getTabAt(0).select(); 

但不会重新选择第一个标签

but it does not reselect first tab

推荐答案

这是因为该视图仍未正确初始化，并且您正在尝试执行某些操作.

This is because that view is still not initialized properly, and you are trying to perform some action.

作为解决方案，您只需要在选择垂直"选项卡之前先放置一个 hadler .

As a solution you just need to put one hadler before selecting perticular tab.

new Handler().postDelayed(
    new Runnable(){
        @Override
        public void run() {
            tabLayout.getTabAt(yourTabIndex).select();
        }
}, 100);

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