android -------- Data Binding的使用 ( 五) include

 

Data Binding的中 include 标签的使用

inclune使用和原来一样，但要如何使数据也在 include中使用呢？

 

先看看我的布局文件

 

include的布局文件，也要使用 <layout>标签

<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android">

    <data>

        <variable
            name="userInfo"
            type="com.zhangqie.databinding.demo10.UserInfo" />
    </data>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <TextView
            android:id="@+id/tv_tow_mls"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@{userInfo.dataName}" />

        <Button
            android:id="@+id/btn_demo10_include"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="include 下的点击" />
    </LinearLayout>

</layout>

 

来看看主布局

<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <data>

        <variable
            name="userInfo"
            type="com.zhangqie.databinding.demo10.UserInfo" />

    </data>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <TextView
            android:id="@+id/tv_title"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@{userInfo.dataName}" />

        <Button
            android:id="@+id/btn_demo10"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="测试" />

        <include
            android:id="@+id/demo10_ainclude"
            layout="@layout/include_test"
            app:userInfo="@{userInfo}" />

    </LinearLayout>
</layout>

 

include 中需要把 userinfo对象传给他；

也要给include 添加一个id值

来看看java代码：

public class InCludeActivity extends AppCompatActivity {

    Demo10Binding demo10Binding;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        demo10Binding = DataBindingUtil.setContentView(this,R.layout.demo10);
        initView();
    }

    private void initView(){

        UserInfo userInfo = new UserInfo("zhangqie");

        demo10Binding.setUserInfo(userInfo);

        demo10Binding.demo10Ainclude.tvTowMls.setText("访问include 中的id");

        demo10Binding.demo10Ainclude.btnDemo10Include.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Toast.makeText(InCludeActivity.this,"123",Toast.LENGTH_LONG).show();
            }
        });
    }
}

 

通过已上介绍应该可以简单了解databinding中 include的使用了