我正在尝试从列表视图的OnItemClickListener事件开始片段,但未显示任何内容。为了检查OnItemClickListener是否正常运行,我提供了一个Toast来显示一些文本及其正常工作。
这是我的代码

这是主要活动的ItemClickListener的代码

        listView.setOnItemClickListener(new AdapterView.OnItemClickListener(){
        public void onItemClick(AdapterView<?> parent, View view, int position, long id){

            Fragment fragment = new Friendtilefragment();
            FragmentTransaction transaction = getFragmentManager().beginTransaction();
            transaction.replace(R.id.friendtilefragment, fragment);
            transaction.addToBackStack(null);
            transaction.commit();

            Toast.makeText(getApplicationContext(), "An item of the ListView is clicked.", Toast.LENGTH_LONG).show();
        }
    });


友谊片段代码

package com.example.xxxxxxxx.socialoid;

import android.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

public class Friendtilefragment extends Fragment {

@Override
public View onCreateView(LayoutInflater inflater,ViewGroup container, Bundle savedInstanceState) {
    return inflater.inflate(R.layout.friendtilefragment_layout, container, false);
}
}


mainactivity_layout.xml

<android.support.v4.widget.SwipeRefreshLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/swipe_refresh_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content">

<ListView
android:id="@+id/list"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:divider="@color/list_divider"
android:dividerHeight="1dp"
android:listSelector="@drawable/list_row_selector" />

<fragment
    android:id="@+id/friendtilefragment"
    android:name="com.example.xxxxxxxx.socialoid.Friendtilefragment"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    />
</android.support.v4.widget.SwipeRefreshLayout>


friendtilefragment_layout.xml

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="vertical"
android:layout_gravity="center"
android:layout_width="match_parent"
android:layout_height="match_parent">
        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="This is textview"/>

</LinearLayout>

最佳答案

您必须在MainActivity中创建一个FrameLayout并将android:id="@+id/friendtilefragment"移至FrameLayout

您的mian_activity中的示例

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout 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/friendtilefragment">

<android.support.v4.widget.SwipeRefreshLayout
android:id="@+id/swipe_refresh_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content">

.....


之间,将Fragment fragment = new Friendtilefragment();更改为Friendtilefragment fragment = new Friendtilefragment();

检查this

关于android - 无法从onListItemClick开始 fragment ,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/34367480/

10-13 03:00