打算打开选项卡式活动的特定选项卡 [英] Intent to open a specific tab of tabbed activity

问题描述

我有一个包含5个标签的标签活动。每个选项卡只有一个Imageview。在上一页中，我有5个按钮，我想创建一个界面，以使每个按钮都启动选项卡式活动，但是第一个可见的选项卡特定于该按钮。例如。画廊应用会打开一个与照片缩略图对应的特定选项卡，并且可以左右互换。

I have a tabbed activity with 5 tabs. Each tab has only one Imageview. On a previous page I have 5 buttons and I want to create an interface such that each button starts the tabbed activity but the first tab which is visible is specific to that button. eg. gallery apps open a specific tab corresponding to the thumnail of the photo and are also left/right swappable.

推荐答案

您可以通过您要打开的标签ID，作为您正在创建的 Intent 的附加标签。然后在选项卡式活动中，假设您使用的是 TabLayout ，则可以执行以下操作-

You can pass the tab id you want to open as an extra to the Intent you are creating. Then in the tabbed Activity, assuming you are using TabLayout, you can do something like this -

TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs);
TabLayout.Tab tab = tabLayout.getTabAt(getIntent().getStringExtra("selected_index"));
tab.select();

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