Question

我正在尝试实施Android应用，在主要活动中它显示谷歌地图，我试图在同一布局上实现视频视图。因此，在主地图活动中（当地图显示时）我试图实现一个线程，该线程将同时在地图视图下方调用视频视图活动（进行录制）。

这可能吗？因为我得到了很多错误。请任何人帮助我..？感谢

公共类MainActivity扩展MapActivity实现Runnable {

private MapView mapView;
private MyLocationOverlay myLocationOverlay;
private Button playerbtn;//button to start player
private Button recorderbtn;//button for recorder
private VideoView mVideoView;
private Uri mVideoUri;

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    mVideoView = (VideoView) findViewById(R.id.videoview);
    playerbtn= (Button)findViewById(R.id.playback);
    recorderbtn = (Button)findViewById(R.id.recording);

    // main.xml contains a MapView
    setContentView(R.layout.main); 

    // extract MapView from layout
    mapView = (MapView) findViewById(R.id.mapview);
    mapView.setBuiltInZoomControls(true);

    // create an overlay that shows our current location
    myLocationOverlay = new FixedMyLocationOverlay(this, mapView);

    // add this overlay to the MapView and refresh it
    mapView.getOverlays().add(myLocationOverlay);
    mapView.postInvalidate();

    // call convenience method that zooms map on our location
    zoomToMyLocation();



}

//--videoview

public void recordingListner(View view) {

    Thread toRun = new Thread()
       {
              public void run()
              {

                 final Intent intent = new Intent(MainActivity.this, VideoRecorder.class);
                handleCameraVideo(intent);
                startActivity(intent);    

              }
       };
       toRun.start();

}

private void handleCameraVideo(Intent intent) {
    mVideoUri = intent.getData();
    mVideoView.setVideoURI(mVideoUri);
    mVideoView.setVisibility(View.VISIBLE);
}

Answer 1

setContentView(R.layout.main);之后将super.onCreate(savedInstanceState);移至右侧。在调用findViewById之前，必须调用setContentView。

在android地图中创建线程

1 个答案: