Android GPS位置获取 为什么总是不能运行??!!!

在网上找了各个版本的GPS定位，可是都不能运行！要么是Sorry，the application has stopped unexpectly.Please try agian.要么就是在DDMS send经纬度之后毫无反应……哭……
到底哪里出了问题？请各位大侠们指点！不胜感激！
下面是源码：
MainActivity.java

package com.se7en;

import android.app.Activity;
import android.content.Context;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class MainActivity extends Activity {
/** Called when the activity is first created. */
private Button button = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
button = (Button)findViewById(R.id.locationButtonId);
button.setOnClickListener(new ButtonListener());
}

private class ButtonListener implements OnClickListener{

@Override
public void onClick(View v){
LocationManager locationManager = (LocationManager)MainActivity.this.getSystemService(Context.LOCATION_SERVICE);
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, new TestLocationListener());
}
}

private class TestLocationListener implements LocationListener{


@Override
public void onLocationChanged(Location location) {
// TODO Auto-generated method stub
System.out.println(location.getLongitude());
System.out.println(location.getLatitude());
}

@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
// TODO Auto-generated method stub

}

@Override
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub

}

@Override
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub

}

}
}

manifest 文件

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.se7en"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk android:minSdkVersion="10" />

<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
<activity
android:name=".Location1Activity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />

<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"></uses-permission>
<uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION"></uses-permission>
</manifest>

main.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="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"
/>
<Button
android:id="@+id/locationButtonId"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@+string/绑定监听器"/>
</LinearLayout>