Question

我需要将字符串发送到另一个活动。

      long timeSpent = System.currentTimeMillis() - initialTime;
      timeSpent = (long) (timeSpent / 1000.0);
   String string = "Game Over! Time spent " + String.valueOf(timeSpent) + "s";

我使用此代码，但这是错误的。

   Intent intent = new Intent();
   intent.putExtra("timespeent", timeSpent);

Answer 1

您需要像这样更改代码

import android.media.MediaPlayer;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.widget.ImageView;
import android.widget.Toast;

import java.io.IOException;

public class MediaActivity extends AppCompatActivity implements SurfaceHolder.Callback {
static SurfaceView videoSurface;
static SurfaceHolder videoHolder;
static MediaPlayer mediaPlayer;
private ImageView imgPlay;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_media);

    videoSurface = (SurfaceView) findViewById(R.id.surfView);
    videoHolder = videoSurface.getHolder();
    videoHolder.addCallback(this);
    imgPlay = (ImageView) findViewById(R.id.imgPLay);

    final String link = "Your Link here";
    mediaPlayer = new MediaPlayer();
    try {
        mediaPlayer.setDataSource(link);
    } catch (IllegalArgumentException e) {
        Toast.makeText(getApplicationContext(), "You might not set the URI correctly!", Toast.LENGTH_LONG).show();
    } catch (IOException e) {
        e.printStackTrace();
    }

    new Thread(new Runnable() {

        @Override
        public void run() {

            imgPlay.setOnClickListener(new View.OnClickListener() {

                @Override
                public void onClick(View arg0) {
                    try {

                        try {
                            mediaPlayer.prepare();
                        } catch (IllegalStateException e) {
                            Toast.makeText(getApplicationContext(), "You might not set the URI correctly!", Toast.LENGTH_LONG).show();
                        } catch (IOException e) {
                            Toast.makeText(getApplicationContext(), "You might not set the URI correctly!", Toast.LENGTH_LONG).show();
                        }
                        mediaPlayer.start();

                        mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
                            @Override
                            public void onCompletion(MediaPlayer mp) {
                                Log.i("Completion Listener", "Song Complete");
                                mp.stop();
                                mp.reset();
                                try {
                                    mp.prepare();
                                } catch (IOException e) {
                                    e.printStackTrace();
                                }
                                mp.start();
                            }
                        });
                        mediaPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {

                            public void onPrepared(MediaPlayer mp) {
                                mp.start();
                            }

                        });
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                }
            });
        }
    }).start();
}

@Override
public void surfaceCreated(SurfaceHolder holder) {

}

@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {

}

@Override
public void surfaceDestroyed(SurfaceHolder holder) {

}
}

如何将此数据发送到另一个活动

1 个答案: