Mitglieder Vorgänger.
Kürzlich lernen, einfache Anwendungen zu machen.
Willst du fragen, wie man Musik im Web liest?
Wie kann der Fortschritt der Suchleistenanzeige erhöht werden?
Und dann erhöhen Sie die Anzeige der aktuellen Spielzeit und der Gesamtzeit.Erhöhen Sie die Wiedergabezeit der Suchbalkenmusikwiedergabe
Mein Code:
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.os.Handler;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import java.io.IOException;
import static tw.edu.ctust.f10308023.mismediaplayer.R.id.btnBackward;
import static tw.edu.ctust.f10308023.mismediaplayer.R.id.btnPlay;
public class Player_one extends AppCompatActivity {
private ImageButton ib1, ib2, ib3;
ImageView iv;
private MediaPlayer mediaPlayer;
private Handler myHandler = new Handler();
private int forwardTime = 5000;
private int backwardTime = 5000;
private double startTime = 0;
private double finalTime = 0;
private TextView tx1, tx2, tx3;
private int seekForwardTime = 5000; // 5000 milliseconds
private int seekBackwardTime = 5000; // 5000 milliseconds
String AudioURL = "http://k003.kiwi6.com/hotlink/hyzvh0ugcl/cytussaika.mp3";
MediaPlayer mediaplayer;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_player_one);
iv = (ImageView) findViewById(R.id.imageView);
ib1 = (ImageButton) findViewById(btnPlay);//播放
ib2 = (ImageButton) findViewById(btnBackward);//倒轉
ib3 = (ImageButton) findViewById(R.id.btnForward);//快轉
tx1 = (TextView) findViewById(R.id.songCurrentDurationLabel);
tx2 = (TextView) findViewById(R.id.songTotalDurationLabel);
tx3 = (TextView) findViewById(R.id.songTitle);
tx3.setText("Cytus-saika");
View v = findViewById(R.id.player_footer_bg);
v.getBackground().setAlpha(75);//0~255透明度值
mediaplayer = new MediaPlayer();
mediaplayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
ib1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated catch block
if (mediaplayer.isPlaying()) {
mediaplayer.pause();
ib1.setImageResource(R.drawable.play);
} else {
mediaplayer.start();
ib1.setImageResource(R.drawable.pause);
}
try {
mediaplayer.setDataSource(AudioURL);
mediaplayer.prepare();
} catch (IllegalArgumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SecurityException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
});
ib2.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
// get current song position
int currentPosition =mediaplayer.getCurrentPosition();
// check if seekBackward time is greater than 0 sec
if(currentPosition - seekBackwardTime >= 0){
// forward song
mediaplayer.seekTo(currentPosition - seekBackwardTime);
}else{
// backward to starting position
mediaplayer.seekTo(0);
}
}
});
ib3.setOnClickListener(new View.OnClickListener()
{
@Override
public void onClick (View arg0){
// get current song position
int currentPosition = mediaplayer.getCurrentPosition();
// check if seekForward time is lesser than song duration
if (currentPosition + seekForwardTime <= mediaplayer.getDuration()) {
// forward song
mediaplayer.seekTo(currentPosition + seekForwardTime);
} else {
// forward to end position
mediaplayer.seekTo(mediaplayer.getDuration());
Toast.makeText(getApplicationContext(), "無法快轉", Toast.LENGTH_SHORT).show();
}
}
});
}
}