我已经使用代码将一个布局添加到另一个布局,但在这种特殊情况下,我无法让它为我工作。如果在xml文件中使用include添加它们,它可以正常工作,它会尝试在代码中复制.xml文件的包含。布局如下:
父布局(parent.xml):
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/parent"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginHorizontal="@dimen/activity_horizontal_margin"
android:orientation="vertical">
<!--<include layout="@layout/child_1" /> this work fine -->
</LinearLayout>
</ScrollView>
第一个孩子(child_1.xml)
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/child_1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<android.support.v7.widget.CardView
android:id="@+id/media_card_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="75dp"
app:cardCornerRadius="15dp"
app:cardElevation="2dp"
app:cardUseCompatPadding="true">
<LinearLayout
android:id="@+id/child_1_2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:orientation="vertical">
<!-- First row: header -->
<LinearLayout
android:id="@+id/header_row"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
... />
<TextView
... />
</LinearLayout>
<!-- Second row: ... -->
<!-- <include layout="@layout/child_2" /> this work fine -->
include child_2 programmatically here. This does not work,
</LinearLayout>
</android.support.v7.widget.CardView>
</LinearLayout>
第二个孩子
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/child_2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
... />
</LinearLayout>
我尝试复制之前的java代码包括:
LinearLayout parent = (LinearLayout) lyInflater.inflate(R.layout.parent, (ViewGroup) findViewById(R.id.parent));
LinearLayout child_1 = (LinearLayout) lyInflater.inflate(R.layout.child_1, (ViewGroup) findViewById(R.id.child_1));
LinearLayout child_1_2 = (LinearLayout) lyInflater.inflate(R.layout.child_1, (ViewGroup) findViewById(R.id.child_1_2));
LinearLayout child_2 = (LinearLayout) lyInflater.inflate(R.layout.child_2, (ViewGroup) findViewById(R.id.child_2));
child_1_2.addView(child_2);
parent.addView(child_1);
父级布局正确添加到child_1,但child_1未显示child_2。
答案 0 :(得分:0)
您需要在此处展示1个布局: child_2 。
和 child_1_2 应根据 child_1 定义
LinearLayout child_1_2 = child_1.findViewById(R.id.child_1_2);