Android: Change absolute position of a view programmatically

Pascal Klein picture Pascal Klein · Aug 9, 2010 · Viewed 67.1k times · Source

If you use an AbsoluteLayout (I know that it is deprecated, but it was the only way to solve my problem) you can give the childViews the tag android:layout_x and android:layout_y to set their absolute position within the AbsoluteLayout.

However I don't want to set these information in the xml, because I only know them at runtime. So how can I set these parameters at runtime programmatically? I don't see any method on the View like view.setLayoutX(int x) or something.

Here is my XML, which works fine, when I set the layout_x and layout_y values:

<?xml version="1.0" encoding="utf-8"?>
<AbsoluteLayout
 xmlns:android="http://schemas.android.com/apk/res/android"
 android:id="@+id/myLayout"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content">

    <ImageView
     android:src="@drawable/myImageView"
     android:layout_width="1298px"
     android:layout_height="945px"
     android:layout_x="0px"
  android:layout_y="0px" />
 <Button  
  android:id="@+id/myButton1"
  android:text="23"
  android:layout_width="wrap_content" 
  android:layout_height="wrap_content"
  android:layout_x="50px"
  android:layout_y="300px"
  android:tag="23"/>


 <Button  
  android:id="@+id/myButton2"
  android:text="48"
  android:layout_width="wrap_content" 
  android:layout_height="wrap_content"
  android:layout_x="50px"
  android:layout_y="300px"
  android:tag="48"/>

</AbsoluteLayout>

In fact, I don't want to set any button within the xml anymore, but rather retrieve some information via remote and add buttons depending on that information.

Here is the part the code I'm using so in my onCreateMethod to add these buttons:

  for (MyRemoteObject remoteObject: list)  {
   Button button = new Button(this);
   button.setOnClickListener (listener);
   button.setTag(remoteObject.id);
   button.setText(remoteObject.id);
   // button.setLayoutX(remoteObject.x) ????
   // button.setLayoutY(remoteObject.y) ????
   myLayout.addView(button);
  }

Answer

Cheryl Simon picture Cheryl Simon · Aug 9, 2010

Use the version of addView that takes LayoutParams:

LayoutParams params = mLayout.generateLayoutParams();
params.x = remoteObject.x;
params.y = remoteObject.y;
mLayout.addView(button, params);