Fragment大全-持续更新....

往容器中添加Fragment

第一步：布局文件

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/container"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity"/>

第二步：MainActivity

package com.example.superapphomeui;

import android.os.Bundle;
import android.widget.FrameLayout;

import androidx.appcompat.app.AppCompatActivity;
import androidx.fragment.app.FragmentManager;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        // 容器
        FrameLayout container = findViewById(R.id.container);
        // 往容器中添加Fragment
        FragmentManager supportFragmentManager = getSupportFragmentManager();
        HomeV2Fragment fragment = new HomeV2Fragment();
        String tag = "HomeV2Fragment";
        supportFragmentManager.beginTransaction()
                .add(R.id.container, fragment, tag)
                .commit();
    }
}

第三步：Fragment

package com.example.superapphomeui;

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

import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;

public class HomeV2Fragment extends Fragment {

    @Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_home_v2, container, false);
        return view;
    }
}