Android的动作条：显示/隐藏标签动态？ [英] Android ActionBar: show/hide tabs dynamically?

问题描述

是否可以删除/恢复，从动态的操作栏上的标签栏？

Is it possible to remove/restore the tab bar from the action bar dynamically?

到现在为止我通过改变操作栏的导航模式这样做。我用下面的code删除和恢复标签栏：

Up to now I did this by changing the navigation mode of the action bar. I used following code to remove and restore the tab bar:

@Override 
public void restoreTabs() {     
    getSupportActionBar()
    .setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
    this.supportInvalidateOptionsMenu();
}

@Override
public void removeTabs() {      
    getSupportActionBar()
    .setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD);
    this.supportInvalidateOptionsMenu();
}

这是工作，但有一个很大的问题：每次我打电话 setNavigationMode ， onTabSelected 是所谓的 TabListener 和当前运行结束标签被重新建立。

That works, but there is a big problem: Everytime I call setNavigationMode, onTabSelected is called in the TabListener and the currently opend tab gets recreated.

推荐答案

要动态删除动作条的标签，只需要：

To remove the actionbar tabs dynamically, you simply need:

getActionBar().setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD);

要添加它们的飞行，简单地做：

To add them on the fly, simply do:

getActionBar().setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);

对于第二种情况，假设是设置在导航模式后，您还可以添加标签，到动作栏中，类似这样的：

For the second case, the assumption is that after setting the navigation mode, you will also add tabs, to the action bar, similar to this:

for (int resourceId : tabs) {
        actionBar.addTab(actionBar.newTab().setText(resourceId)
                .setTabListener(this));
}

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