[英]Android - Dynamically added linearlayout not wrapping to height of children added later, dynamically
我将7个线性布局添加到垂直线性布局中,并且在每个线性布局中,我遍历游标并为游标的每一行添加一个垂直具有两个textview的视图。
一切工作正常,除了线性布局未包装到子视图的内容。
我有一种感觉是因为我在添加子视图之前在layoutparams中设置了wrap_content,但是我只是在将linearlayouts layoutparams添加到主视图之前对其进行了更新,但它仍然没有包装。
动态添加代码
while(c.moveToNext()) {
if(!(c.getString(c.getColumnIndex("date")).equals(startDate))) {
if(thisLin != null) {
LayoutParams thisLinParams = new LayoutParams(
LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
thisLin.setLayoutParams(thisLinParams);
seven_wrapper.addView(thisLin);
}
thisLin = new LinearLayout(getActivity());
// originally I was setting layoutparams here but I removed this
// when I thought it wasn't wrapping properly as there were no child views
// at this stage
//LayoutParams thisLinParams = new LayoutParams(
// LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
//thisLin.setLayoutParams(thisLinParams);
TextView t = new TextView(getActivity());
t.setText(c.getString(c.getColumnIndex("date")));
LayoutParams lparams = new LayoutParams(
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
t.setLayoutParams(lparams);
thisLin.addView(t);
}
sevenItem = inflater.inflate(R.layout.seven_item, container, false);
TextView time = (TextView) sevenItem.findViewById(R.id.seven_item_time);
TextView name = (TextView) sevenItem.findViewById(R.id.seven_item_name);
time.setText(c.getString(c.getColumnIndex("time")));
name.setText(c.getString(c.getColumnIndex("name")));
thisLin.addView(sevenItem);
}
seven_wrapper.addView(thisLin);
c.close();
片段视图
<HorizontalScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:id="@+id/seven_day_rows_wrapper"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"/>
</HorizontalScrollView>
儿童观
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView android:id="@+id/seven_item_time"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"/>
<TextView android:id="@+id/seven_item_name"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@id/seven_item_time"/>
</RelativeLayout>
我是个白痴。
我的孩子视图包装到父级,而父视图包装到孩子,所以它仍然保持原始大小。
在高度上将子级更改为wrap_content,并且一切正常。
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