title: Add a Button dynamically to a LinearLayout in Android
body: <p>I am working on a project that needs to add buttons dynamically. But whenever I run my application the application force closes. I've learned that the problem is when I try to add buttons.</p>
  
  <pre><code>package com.Feras.TestProject;
  import android.app.Activity;
  import android.os.Bundle;
  import android.view.LayoutInflater;
  import android.view.View;
  import android.view.View.OnClickListener;
  import android.view.ViewGroup.LayoutParams;
  import android.widget.Button;
  import android.widget.LinearLayout;
  
  public class TestProject extends Activity {
      /** Called when the activity is first created. */
      @Override
      public void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
  
      setContentView(R.layout.main);
      AddAll();
      // Set Text for the button in the Old Testament
  
  
  
  }
  public void AddAll() {
      LinearLayout linearLayout = (LinearLayout)findViewById(R.id.layout1);
      Button btn = new Button(this); 
      btn.setText("MyButton"); 
      linearLayout.addView(btn); 
  
  
      }
  }
  </code></pre>