An application to present a phone dialer so the user can enter the numbers and make a call through the UI
package com.java2s.app; import android.app.Activity; import android.content.Intent; import android.os.Bundle; import android.view.View; import android.view.ViewGroup.LayoutParams; import android.widget.Button; import android.widget.LinearLayout; //w w w.j a v a2 s . co m public class MainActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); LinearLayout parentContainer = new LinearLayout(this); parentContainer.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT)); parentContainer.setOrientation(LinearLayout.VERTICAL); Button button = new Button(this); parentContainer.addView(button); button.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { Intent i = new Intent(android.content.Intent.ACTION_DIAL); startActivity(i); } }); setContentView(parentContainer); } }