从活动中调用片段

问题描述

我正在尝试使用 startActivity()从活动类扩展片段的情况下调用类.它返回我无法转换为android.app.activity错误.我很困惑如何从活动中打开片段视图.

I am trying to call a class whıch extends fragment from an activity class with startActivity() . It returns me cannot be cast to android.app.activity error. I am confused how can I open fragment vıew from activity.

推荐答案

在活动中，您创建了一个事务来用另一个替换片段:

In the activity, you create an transaction to replace a fragment by another:

    FragmentSelectDate myFragment = new FragmentSelectDate();
    myFragment.setArguments(getIntent().getExtras());
    FragmentTransaction transaction = getSupportFragmentManager()
            .beginTransaction();
    transaction.replace(R.id.containerMain, myFragment,
                "FragmentSelectDate");
    transaction.addToBackStack(null);
    transaction.commit();

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