家庭记账本APP开发准备(二)

今天学习了选项卡，为记账本的分类做了准备。主登录界面进行了优化，但仍未实现各个组件之间的跳转。

选项卡

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_height="wrap_content"
            android:layout_width="match_parent"
            android:id="@android:id/tabs"

            ></TabWidget>
        <FrameLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:id="@android:id/tabcontent"
            ></FrameLayout>
    </LinearLayout>

</TabHost>

　　tab1.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:id="@+id/left"
    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"/>

</LinearLayout>

　　tab2.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:id="@+id/right"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
    <ImageView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:src="@drawable/img"/>

</LinearLayout>

　　MainActivity.java

package com.example.xuanxiang;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.view.LayoutInflater;
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();//初始化 添加标签页
        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("选项一").setContent(R.id.left));
        tabHost.addTab(tabHost.newTabSpec("tab2").setIndicator("选项二").setContent(R.id.right));
    }
}

　　优化美化后的主界面..........