Question

我已经被困在这个问题上将近10天了，我已经在互联网上搜索了一个解决方案，我已经尝试了所有这些，但没有人和我合作。的 Fragment1.cs

public override View OnCreateView(LayoutInflater inflater, ViewGroup 
 container, Bundle savedInstanceState)
  {
base.OnCreate(savedInstanceState);
View view = inflater.Inflate(Resource.Layout.my_layout, container, false);
add.Click += delegate
    {
        Fragment2 fragment2 = new Fragment2();
        FragmentTransaction ft = FragmentManager.BeginTransaction();
        ft.Replace(Resource.Id.content_frame, fragment2);
        ft.Commit();
     };
return view;
}

Fragment2.cs

public override View OnCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
    base.OnCreate(savedInstanceState);
    View view = inflater.Inflate(Resource.Layout.fragment_lay, container, false);

    TextView txt = view.FindViewById<TextView>(Resource.Id.textView1);
    Button btn = view.FindViewById<Button>(Resource.Id.button1);
    listView = view.FindViewById<ListView>(Resource.Id.listView1);
    Toast.MakeText(Activity, "Fragment2 started", ToastLength.Short).Show();
    return view;
   }

my_layout

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/content_frame">
<TextView
    android:text="Text"
    android:layout_width="match_parent"
    android:layout_height="70dp"
    android:id="@+id/total"
    android:textAlignment="center"
    android:textSize="30dp" />
<TextView
    android:text="Text"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/textchangevalue"
    android:textSize="33dip"
    android:textStyle="bold" />
<Button
    android:text="UPDATE"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:id="@+id/updatebtn" />
<Button
    android:text="ADD"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:id="@+id/addbtn" />
<ListView
    android:minWidth="25px"
    android:minHeight="25px"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/portfoliolist"
    android:clickable="true" />

我试图改变Fragment1的布局，而不是<LinearLayout> <FrameLayout>而是didn't。我在toast中添加了Fragment2消息，当我点击add中的Fragment1按钮时，toast消息（位于fragment2中1}}）显示这意味着fragment2开始正常，但它的布局没有显示在屏幕上。请帮我找一个解决方案。

Android - 从另一个片段启动片段

0 个答案: