Android选项卡学习

什么是选项卡

顶部的导航条就是选项卡了。

Android开发中添加选项卡的步骤

图片不太懂上代码:

activity_main.xml

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

<TabHost xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:app="http://schemas.android.com/apk/res-auto"

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:id="@android:id/tabhost"

    tools:context=".MainActivity">

    <LinearLayout

        android:layout_width="match_parent"

        android:layout_height="match_parent"

        android:orientation="vertical">

        <TabWidget

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            android:id="@android:id/tabs"></TabWidget>

        <FrameLayout

            android:id="@android:id/tabcontent"

            android:layout_width="match_parent"

            android:layout_height="match_parent">

        </FrameLayout>

    </LinearLayout>

</TabHost>

tab1.xml

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

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:id="@+id/left"

    android:orientation="vertical"

    android:layout_width="match_parent"

    android:layout_height="match_parent">

    <ImageView

        android:layout_width="match_parent"

        android:layout_height="match_parent"

        android:src="@drawable/bg_left"></ImageView>

</LinearLayout>

tab2.xml文件和tab1几号一样就是改个id和改个图片就好了。

MainActivity.java

package com.example.selectitem;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;

import android.view.LayoutInflater;

import android.view.View;

import android.widget.TabHost;

public class MainActivity extends AppCompatActivity {

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        TabHost tabHost = (TabHost) findViewById(android.R.id.tabhost);

        tabHost.setup();

        LayoutInflater inflater = LayoutInflater.from(this);

        inflater.inflate(R.layout.tab1,tabHost.getTabContentView());

        inflater.inflate(R.layout.tab2,tabHost.getTabContentView());

        tabHost.addTab(tabHost.newTabSpec("tab1").setIndicator("性感服装").setContent(R.id.left));

        tabHost.addTab(tabHost.newTabSpec("tab2").setIndicator("清纯服装").setContent(R.id.right));

    }

}

效果: