Question

我在Android Xamarin中创建片段。

这是我到目前为止所做的：

PortfolioFragment.cs

class PortfolioFragment: Fragment
{
    public override View OnCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
    {
        base.OnCreateView(inflater, container, savedInstanceState);

        var view = inflater.Inflate(Resource.Layout.portfolio_fragment, container, false);

        return view;
    }
}

fragment.axml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:minWidth="25px"
    android:minHeight="25px">
    <TextView
        android:text="Large Text"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/textView1" />
</LinearLayout>

Main.cs

 PortfolioFragment pFragment = new PortfolioFragment();
      FragmentTransaction fragmentTx = this.FragmentManager.BeginTransaction().Replace(Resource.Id.fragment_container, pFragment);

但我收到错误：

Error   1   'MyProject.Resource.Id' does not contain a definition for 'fragment_container'

有什么不对？

修改

我尝试改为：

homeactivity.axml

    <?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:minWidth="25px"
    android:minHeight="25px">
    <FrameLayout
        android:minWidth="25px"
        android:minHeight="25px"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/frame_container" />
</LinearLayout>

Main.cs

SetContentView(Resource.Layout.homeactivity);



             HomeFragment hFragment = new HomeFragment(this);
             FragmentTransaction fTx = this.FragmentManager.BeginTransaction().Add(Resource.Id.frame_container, hFragment);

现在我收到一个错误：

 Error  3   The best overloaded method match for 'Android.App.FragmentTransaction.Add(int, Android.App.Fragment)' has some invalid arguments    
Error   4   Argument 2: cannot convert from 'MyProject.Views.HomeFragment' to 'Android.App.Fragment'

Answer 1

Resource.Id.fragment_container名称错误

似乎您的Activity中没有片段容器。创建一个布局（FrameLayout）来保存活动中的片段，并将该布局ID赋予replace方法的第一个参数。

EG。 R.id.fragment_container

请遵循本教程

http://wptrafficanalyzer.in/blog/dynamically-add-fragments-to-an-activity-in-android/

以编程方式创建片段Android Xamarin

1 个答案: