下面来配置一下开发环境Build Environment
文档上指出： it's a support library, so you can use it with all Android platform versions back to Android 2.1 (API level 7+)
To use data binding, Android Plugin for Gradle 1.5.0-alpha1 or higher is required.也就是你的gradle插件必须是1.5以上的，相当于你要下载对应的Gradle包
classpath 'com.android.tools.build:gradle:2.1.0' distributionUrl=https\://services.gradle.org/distributions/gradle-2.10-all.zip Use the following code snippet to configure data binding: android { .... dataBinding { enabled = true } }此外，Android Studio 1.3 and later provides support for data binding as described in Android Studio Support for Data Binding
要注意的是：update the Android Plugin for Gradle 的时候Build Tools 23.0.2 or higher.
使用：Data Binding Layout Files
<layout xmlns:android="http://schemas.android.com/apk/res/android">//以layout为最外层标志 <data>//要绑定的数据 <variable name="user" type="com.honglingjin.databindingtest.bean.User" /> </data> <!-- 接下来和平时写的布局文件一样--> <RelativeLayout android:layout_width="match_parent" android:layout_height="match_parent"> <TextView android:id="@+id/tv1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerHorizontal="true" android:text="@{user.firstName}" /> <!-- 绑定的字段@{user.firstName}--> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@id/tv1" android:layout_centerHorizontal="true" android:text="@{user.lastName}" /> </RelativeLayout> </layout> Activity简单使用 Binding Data
@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); ActivityMainBinding binding = DataBindingUtil.setContentView(this, R.layout.activity_main); User user = new User("chen", "jie"); binding.setUser(user); }