Fragment 选项卡

た入场券 2022-08-27 05:59 183阅读 0赞

选项卡的主要的思路就是通过FragmentManager这个类来进行replace的方法的调用。替换需要的Fragment来显示。

android:layout\_width="match\_parent"

android:layout\_height="match\_parent"

android:orientation="vertical" >

android:layout\_width="fill\_parent"

android:layout\_height="60dp"

android:orientation="horizontal">

android:id="@+id/left"

android:layout\_width="0dp"

android:layout\_height="fill\_parent"

android:layout\_weight="1"

android:text="左边"

android:gravity="center"/>

android:id="@+id/right"

android:layout\_width="0dp"

android:layout\_height="fill\_parent"

android:layout\_weight="1"

android:text="右边"

android:gravity="center"/>

android:id="@+id/content"

android:layout\_width="fill\_parent"

android:layout\_height="fill\_parent"

android:orientation="vertical">

package com.demo.activity;

import android.os.Bundle;

import android.support.v4.app.FragmentActivity;

import android.support.v4.app.FragmentManager;

import android.support.v4.app.FragmentTransaction;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.TextView;

public class MainActivity extends FragmentActivity implements OnClickListener \{

private TextView leftView, rightView;

private FragmentManager fragmentManager;

private FragmentTransaction ft;

@Override

protected void onCreate(Bundle arg0) \{

super.onCreate(arg0);

setContentView(R.layout.main\_activity);

leftView = (TextView)findViewById(R.id.left);

rightView = (TextView)findViewById(R.id.right);

leftView.setOnClickListener(this);

rightView.setOnClickListener(this);

fragmentManager = getSupportFragmentManager();

ft = fragmentManager.beginTransaction();

ft.replace(R.id.content, new FragmentLeft());

ft.commit();

@Override

public void onClick(View v) \{

ft = fragmentManager.beginTransaction();

switch (v.getId()) \{

case R.id.left:

leftView.setBackgroundResource(R.drawable.ic\_launcher);

rightView.setBackgroundResource(R.drawable.an);

ft.replace(R.id.content, new FragmentLeft());

break;

case R.id.right:

rightView.setBackgroundResource(R.drawable.ic\_launcher);

leftView.setBackgroundResource(R.drawable.an);

ft.replace(R.id.content, new FragmentRight());

break;

default:

break;

ft.commit();

package com.demo.activity;

import android.os.Bundle;

import android.support.v4.app.Fragment;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

public class FragmentLeft extends Fragment\{

@Override

public View onCreateView(LayoutInflater inflater, ViewGroup container,

Bundle savedInstanceState) \{

View view = inflater.inflate(R.layout.fragment\_left, null);

return view;

package com.demo.activity;

import android.os.Bundle;

import android.support.v4.app.Fragment;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

public class FragmentRight extends Fragment\{

@Override

public View onCreateView(LayoutInflater inflater, ViewGroup container,

Bundle savedInstanceState) \{

View view = inflater.inflate(R.layout.fragment\_right, null);

return view;

Fragment 选项卡

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