java - 如何在没有 "implements LocationListener"的情况下使用 LocationListener？

Question

我终于找到了一个获取用户 GPS 位置的应用程序，但我找到了实现 LocationListener 的应用程序。它工作正常，但我需要在不实现它的情况下执行它，因为我必须创建一个不实现方法的类。

我搜索了很多教程并查看了很多网站，我尝试将我的代码转换为不实现 LocationListener 但我做不到，我测试的每件事都破坏了我的应用程序并停止获取 GPS 位置用户。

拜托，如果这方面的专家可以转换我的代码而不是使用“implements LocationListener”，我会感谢他

这是要转换的代码:

public class GpsMiniActivity extends Activity implements LocationListener{

private LocationManager mLocMgr;
private TextView tv1;
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    FrameLayout rl = new FrameLayout(this.getApplicationContext());
    LinearLayout ll= new LinearLayout(this.getApplicationContext());
    ll.setOrientation(LinearLayout.VERTICAL);

    setContentView(rl);
    rl.addView(ll);

    tv1=new TextView(getApplicationContext());
    ll.addView(tv1);

    //setContentView(R.layout.main);
    mLocMgr = (LocationManager) getSystemService(LOCATION_SERVICE);
    mLocMgr.requestLocationUpdates(LocationManager.GPS_PROVIDER,
            500, 0, this);
}
@Override
public void onLocationChanged(Location location) {
    tv1.setText("Lat " +   location.getLatitude() + " Long " + location.getLongitude());
}
public void onProviderDisabled(String provider) {}
public void onProviderEnabled(String provider) {}
public void onStatusChanged(String provider, int status, Bundle extras) {}
}

Answer 1

public class GpsMiniActivity extends Activity {

private LocationManager mLocMgr;
private TextView tv1;
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    FrameLayout rl = new FrameLayout(this.getApplicationContext());
    LinearLayout ll= new LinearLayout(this.getApplicationContext());
    ll.setOrientation(LinearLayout.VERTICAL);

    setContentView(rl);
    rl.addView(ll);

    tv1=new TextView(getApplicationContext());
    ll.addView(tv1);

    //setContentView(R.layout.main);
    mLocMgr = (LocationManager) getSystemService(LOCATION_SERVICE);
    mLocMgr.requestLocationUpdates(LocationManager.GPS_PROVIDER,
            500, 0, ll);
}
}
private LocationListener ll = new LocationListener(){
public void onLocationChanged(Location location) {
    tv1.setText("Lat " +   location.getLatitude() + " Long " + location.getLongitude());
}
public void onProviderDisabled(String provider) {}
public void onProviderEnabled(String provider) {}
public void onStatusChanged(String provider, int status, Bundle extras) {}
}
}

给你。