How to pass AttributeSet to custom View

Question

How do I pass the current AttributeSet to a custom View class? If I use a constructor that only has Context in the arguments, I lose all themes and the ability to use "style" tags in the xml for that custom View.

What I've done is create an activity that contains my custom view already in the xml file, and then programmatically create a new one and add it to the layout. What I find is the one that is made in the xml has the proper styling, and the one I create programmatically doesn't.

The difference between the two as far as I can tell is that the system uses the CustomLayout1(Context context, AttributeSet attrs) constructor. The problem is I can't figure out how to get the AttributeSet for the application to pass to this custom view when I create it programmatically.

Here's the Activity:

import android.app.Activity; import android.os.Bundle; import android.widget.LinearLayout;  public class ThemeOne extends Activity {      @Override     public void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.main);          LinearLayout layout = (LinearLayout) findViewById(R.id.mainlayout);          layout.addView(new CustomLayout1(getApplicationContext()));     } } 

Here's the main xml:

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  android:orientation="vertical"   android:id="@+id/mainlayout"  android:layout_width="fill_parent"  android:layout_height="fill_parent">  <com.clearsync.test.theme1.CustomLayout1 android:id="@+id/maincustom"   android:layout_width="fill_parent"   android:layout_height="wrap_content" /> </LinearLayout> 

The custom view class:

import com.clearsync.test.theme1.R;  import android.content.Context; import android.util.AttributeSet; import android.view.LayoutInflater; import android.widget.LinearLayout;  public class CustomLayout1 extends LinearLayout {  private Context context = null;   public CustomLayout1(Context context) {   super(context);   this.context = context;   create();  }   public CustomLayout1(Context context, AttributeSet attrs) {   super(context, attrs);   this.context = context;   create();  }   private void create(){   LayoutInflater layoutInflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);   layoutInflater.inflate(R.layout.inflateme, this, true);  } } 

and finally, the custom view xml:

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  android:orientation="vertical"   android:layout_width="fill_parent"  android:layout_height="fill_parent">  <TextView android:layout_width="wrap_content"   android:layout_height="wrap_content"    android:text="Oh, Hewroh..."   style="?textview_style1" /> </LinearLayout> 

Answer 1

Instead of building it with layout.addView(new CustomLayout1(getApplicationContext())); inflate it with the LayoutInflater in your Activity.

LayoutInflater inflater = LayoutInflater.from(this); inflater.inflate(R.layout.yourcustomviewxml, layout);