Is it possible to show the first view in a LinearLayout overlapping the second?
I would like to layout my views like so:
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_alignParentRight="true" >
<TextView
android:id="@+id/firstTextView"
android:layout_width="wrap_content"
android:layout_height="wrapContent" />
<TextView
android:id="@+id/secondTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
But I need my first view from the layout, firstTextView, to be placed on top of (overlapping) secondTextView. Is this possible? I am using the LinearLayout because I'm also playing with the margins to get an overlapping effect.
What worked for me and probably will work for you is that:
- Wrap your 2 TextViews with RelativeLayout instead of LinearLayout and set android:clipChildren="false". This will prevent the overlapping portion from being clipped.
- Layout the 2nd TextView below the first TextView
- In the code, call bringToFront() on the first TextView. By default, the first textview is drawn first and will be below the second textview. Calling bringToFront() will change that order.
So the layout can be something like this:
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:clipChildren="false">
<TextView
android:id="@+id/firstTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#00000000"
android:text="First View" />
<TextView
android:id="@+id/secondTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/firstTextView"
android:background="#00000000"
android:layout_marginTop="-13dp"
android:text="Second View"/>
</RelativeLayout>
and:
TextView firstTextView = (TextView)findViewById(R.id.firstTextView);
firstTextView.bringToFront();
If all you want is to overlap the two views vertically, then use this XML:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical" >
<TextView
android:id="@+id/firstTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#00000000"
android:text="First View" />
<TextView
android:id="@+id/secondTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#00000000"
android:layout_marginTop="-13dp"
android:text="Second View"/>
</LinearLayout>
![](https://www.eimg.top/images/2020/03/07/22febeeac6ce216ef9b4baad2e0f2873.jpg)
Or you can stick with Linear Layout, but place a RelativeLayout within it, as a child. You can than place your TextViews withing the RelativeLayout, so they'll inheret properties from RelativeLayout. You can then still use your LinearLayout for other views. http://developer.android.com/reference/android/widget/RelativeLayout.html
By assigning margin value "<0" we can overlap the views. But Relative layout is preferable when we need o overlap views.
I know this is an old question, but in case anyone is looking for this again as I was today - I have a dynamically build layout so I don't really have a specific xml rather a separate view I want to add ontop of my stack depending on certain settings; @GabeSechan 's comment let me in the right direction, I used -bottom margin to bring the second view up, inserted the new view at position 0
LinearLayout stack = (LinearLayout) findViewById(R.id.mystackview);//get your stack
stack.addView(getView(count), 0); //place it at the top
public View getView(){
TextView view = menuLayout.findViewById(R.id.myview);
LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(size, size);
layoutParams.setMargins(0, 0, 0, -size));//this pulls the view back up to overlap evenly
layoutParams.setMarginEnd(0);
layoutParams.setMarginStart(size);
if (view.getParent() != null)
((ViewGroup) view.getParent()).removeView(view);
view.setLayoutParams(layoutParams);
view.setZ(1);//this then sets the zindex above the other layout and hey presto, almost a simple css style fix
return view;
}
来源:https://stackoverflow.com/questions/16973327/first-view-above-overlapping-second-in-linearlayout