Pick an item from a data source

<?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"
  >
  <EditText android:id="@+id/type"
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content"
    android:cursorVisible="true"
    android:editable="true"
    android:singleLine="true"
    android:text="content://contacts/people"
  />
  <Button
    android:id="@+id/pick"
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent"
    android:text="Gimme!"
    android:layout_weight="1"
  />
</LinearLayout>

/***// w  w  w .j av  a  2 s .  c  o m
  Copyright (c) 2008-2009 CommonsWare, LLC
  
  Licensed under the Apache License, Version 2.0 (the "License"); you may
  not use this file except in compliance with the License. You may obtain
  a copy of the License at
    http://www.apache.org/licenses/LICENSE-2.0
  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
*/


import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;


public class MainActivity extends Activity {
  static final int PICK_REQUEST=1337;
  private EditText type;

  @Override
  public void onCreate(Bundle icicle) {
    super.onCreate(icicle);
    setContentView(R.layout.main);
    type=(EditText)findViewById(R.id.type);
    
    Button btn=(Button)findViewById(R.id.pick);
    
    btn.setOnClickListener(new View.OnClickListener() {
      public void onClick(View view) {
        Intent i=new Intent(Intent.ACTION_PICK,
                    Uri.parse(type.getText().toString()));

        startActivityForResult(i, PICK_REQUEST);
      }
    });
  }

  @Override
  protected void onActivityResult(int requestCode, int resultCode,
                                    Intent data) {
    if (requestCode==PICK_REQUEST) {
      if (resultCode==RESULT_OK) {
          startActivity(new Intent(Intent.ACTION_VIEW,
                                    data.getData()));
      }
    }
  }
}