[英]How do I make a linear layout appear in a gridview?
Here is the code. 这是代码。
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<LinearLayout
android:id="@+id/grid_cell_color"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#80A9A9A9"
android:orientation="vertical" >
</LinearLayout>
<ImageView
android:id="@+id/imageView1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="@drawable/grid_cell_border" />
<RelativeLayout
android:id="@+id/grid_cell_background"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
</RelativeLayout>
</FrameLayout>
The adapter code is: 适配器代码为:
@Override
public int getCount() {
return titles.length;
}
@Override
public Object getItem(int position) {
return titles[position];
}
@Override
public long getItemId(int position) {
return 0;
}
@Override
public View getView(int position, View row, ViewGroup parent) {
if (inflater == null)
inflater = (LayoutInflater) view.getContext().getSystemService(
Context.LAYOUT_INFLATER_SERVICE);
row = inflater.inflate(R.layout.grid_view_single_cell, parent, false);
LinearLayout gridCell1= (LinearLayout) row.findViewById(R.id.grid_cell_color);
if(position == 0 || position == 1 || position == 5){
gridCell1.setVisibility(View.GONE);
Log.i("GRID", "ENTERED");
}
RelativeLayout gridCell = (RelativeLayout) row.findViewById(R.id.grid_cell_background);
gridCell.setBackgroundResource(titles[position]);
return row;
}
}
I want to put a gray colored linear layout in some of the cells. 我想在某些单元格中放置一个灰色的线性布局。 But it doesn't appear.
但是它没有出现。 How do I do it?
我该怎么做? My references seems right but still the gray colored layout doesn't show up.
我的参考文献似乎正确,但是灰色布局仍然没有显示。
The reason is the item of a ListView will be reused. 原因是ListView的项目将被重用。
After this code: 此代码后:
if(position == 0 || position == 1 || position == 5){
gridCell1.setVisibility(View.GONE);
Log.i("GRID", "ENTERED");
}
You should add the else clause: 您应该添加else子句:
else{
gridCell1.setVisibility(View.VISIBLE);
}
There may be another reason: change the height of the Linearlayout to 1dp. 可能还有另一个原因:将Linearlayout的高度更改为1dp。
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