效果上沒有什麼特別的，看不出來什麼~~

看看準備工作和原始碼：

MainActivity.java:

package com.iwanghang.databinding;

import android.databinding.DataBindingUtil;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;

import com.iwanghang.databinding.databinding.ActivityMainBinding;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        //setContentView(R.layout.activity_main);
        /**
         * 用DataBinding方式載入layout
         */
        ActivityMainBinding binding = DataBindingUtil.setContentView(this,R.layout.activity_main);

        User user = new User();
        user.setName("使用者名稱");
        user.setNickName("暱稱");
        user.setEmail("
 
[email protected]");
        user.setVip(true);
        binding.setUser(user);
    }
}

package com.iwanghang.databinding;

public class User {
    private String name;
    private String nickName;
    private String email;
    private boolean vip;

    public boolean isVip() {
        return vip;
    }

    public void setVip(boolean vip) {
        this.vip = vip;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getNickName() {
        return nickName;
    }

    public void setNickName(String nickName) {
        this.nickName = nickName;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }
}
 

<?xml version="1.0" encoding="utf-8"?>
<!--改造後的layout-->
<layout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools">
    <!--資料模組-->
    <data>
        <variable
            name="user"
            type="com.iwanghang.databinding.User"/>
    </data>
    <!--樣式模組-->
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical"
        android:gravity="center"
        tools:context="com.iwanghang.databingding.MainActivity">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"

            android:text="@{ user.name }" />
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@{ user.nickName }" />
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@{ user.email }" />
        <TextView
            android:textColor="@{ user.vip ? 0xffff0000 : 0xff0000}"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="VIP" />
    </LinearLayout>
</layout>
 

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