SensorList.java :  » Samples » krvarma-android-samples » com » varma » samples » sensorsample » ui » Android Open Source

package com.varma.samples.sensorsample.ui;

import java.util.List;

import com.varma.samples.sensorsample.app.AppLog;
import com.varma.samples.sensorsample.app.R;
import com.varma.samples.sensorsample.app.SensorSampleApp;

import android.app.ListActivity;
import android.content.Context;
import android.content.Intent;
import android.hardware.Sensor;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;

public class SensorList extends ListActivity {
  SensorListAdapter adapter = null;
  SensorSampleApp app = null;
  
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        app = (SensorSampleApp)getApplication();
        adapter = new SensorListAdapter(this, R.layout.listitem, app.getSensorList());
        
        setListAdapter(adapter);
    }
    
    @Override
  protected void onListItemClick(ListView l, View v, int position, long id) {
    super.onListItemClick(l, v, position, id);
    
    AppLog.log(app.getSensorList().get(position).getName());
    
    startSensorTestActivity(position);
  }

  private void startSensorTestActivity(int position) {
    Intent intent = new Intent(this, SensorTestActivity.class);
    
    intent.putExtra(SensorSampleApp.SENSOR_INDEX, position);
    
    startActivity(intent);
  }

  private class SensorListAdapter extends ArrayAdapter<Sensor>{
      private List<Sensor> objects = null;
      
    public SensorListAdapter(Context context, int textviewid, List<Sensor> objects) {
      super(context, textviewid, objects);
      
      this.objects = objects;
    }
    
    @Override
    public int getCount() {
      return ((null != objects) ? objects.size() : 0);
    }
    
    @Override
    public long getItemId(int position) {
      return position;
    }
    
    @Override
    public Sensor getItem(int position) {
      return ((null != objects) ? objects.get(position) : null);
    }
    
    public View getView(int position, View convertView, ViewGroup parent) {
      View view = convertView;
      
      if(null == view)
      {
        LayoutInflater vi = (LayoutInflater)SensorList.this.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        view = vi.inflate(R.layout.listitem, null);
      }
      
      Sensor sensor = objects.get(position);
      
      if(null != sensor)
      {
        TextView txtName = (TextView)view.findViewById(R.id.txtName);
        TextView txtVendor = (TextView)view.findViewById(R.id.txtVendor);
        TextView txtVersion = (TextView)view.findViewById(R.id.txtVersion);
        
        txtName.setText(sensor.getName());
        txtVendor.setText("Vendor: " + sensor.getVendor());
        txtVersion.setText("Version: " + sensor.getVersion());
      }
      
      return view;
    }
    }
}