我遇到了seekbar拇指的问题，虽然我已经添加了所有必要的代码以便它工作。仍然，搜索栏拇指没有从用户拖动的点播放。相反，拇指将自己定位回到最后一次播放的位置。任何帮助将不胜感激。
plus = (ImageButton) findViewById(R.id.imageButton2);
minus = (ImageButton) findViewById(R.id.imageButton4);
player = MediaPlayer.create(this, R.raw.songnames);
player.setLooping(false);
im = (ImageButton) this.findViewById(R.id.imageButton3);
seekbar = (SeekBar) findViewById(R.id.mantraProgressBar);
seekbar.setVisibility(ProgressBar.VISIBLE);
seekbar.setProgress(0);
seekbar.setMax(player.getDuration());
new Thread(this).start();
im.setOnClickListener(this);
player.start();
im.setImageResource(R.drawable.pause_tran);
Toast.makeText(this, isPlaying, Toast.LENGTH_LONG).show();
plus.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
int cu = player.getCurrentPosition();
player.seekTo(cu - 5000);
}
});
minus.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
int cu = player.getCurrentPosition();
player.seekTo(cu + 5000);
}
});
}
@Override
public void onClick(View arg0) {
if (arg0.getId() == R.id.imageButton3) {
if (player.isPlaying()) {
player.pause();
Toast.makeText(this, notPlaying, Toast.LENGTH_LONG).show();
ImageButton img1 = (ImageButton) this.findViewById(R.id.imageButton3);
img1.setImageResource(R.drawable.play_tran);
} else {
player.start();
Toast.makeText(this, isPlaying, Toast.LENGTH_LONG).show();
ImageButton img1 = (ImageButton) this.findViewById(R.id.imageButton3);
img1.setImageResource(R.drawable.pause_tran);
}
}
}
@Override
public void run() {
int currentPosition = 0;
String s;
int total = player.getDuration();
while (player != null && currentPosition < total) {
try {
Thread.sleep(1000);
currentPosition = player.getCurrentPosition();
} catch (InterruptedException e) {
return;
} catch (Exception e) {
return;
}
seekbar.setProgress(currentPosition);
}
}
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
if (fromUser) {
player.seekTo(progress);
seekbar.setProgress(progress);
}
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
}
}
答案 0 :(得分：0)
公共类MainActivity扩展了AppCompatActivity {
private MyVideoView mVV;
private Handler mhandler;
private SeekBar seekbar;
private int duration;
private int backPositon = 0;
private int currentPosition;
private SharedPreferences sp;
private MediaController controller;
private TextView tv_curr;
private TextView tv_duration;
private Handler handler;
private boolean mExit;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mVV = (MyVideoView) findViewById(R.id.vv);
seekbar = (SeekBar) findViewById(R.id.seekbar);
tv_curr = (TextView) findViewById(R.id.tv_currtime);
tv_duration = (TextView) findViewById(R.id.tv_duration);
//get duration of video
getDuration();
//video start
playVideo();
//get current time
getCurrentDuration();
//listener
initEvent();
}
private void initHanlder() {
handler=new Handler(){
@Override
public void handleMessage(Message msg) {
if (msg.what==0x123){
tv_curr.setText(timeFormat(mVV.getCurrentPosition()));
seekbar.setProgress(mVV.getCurrentPosition());
}
if(msg.what==0x133){
int changedProgress = msg.arg1;
tv_curr.setText(timeFormat(changedProgress));
mVV.seekTo(changedProgress);
seekbar.setProgress(changedProgress);
mVV.start();
}
}
};
new Thread(new Runnable() {
@Override
public void run() {
while (mVV.getCurrentPosition()<duration){
Message message = Message.obtain();
message.what=0x123;
handler.sendMessage(message);
SystemClock.sleep(1000);
if(mExit){
break;
}
}
}
}).start();
}
private void getDuration() {
mVV.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
@Override
public void onPrepared(MediaPlayer mp) {
duration = mVV.getDuration();
timeFormat(duration);
Log.d("TAG", "---duration" + timeFormat(duration));
seekbar.setMax(duration);
//TextView time
tv_duration.setText(timeFormat(duration));
//init handler
initHanlder();
}
});
}
private String timeFormat(int time) {
StringBuilder mFormatBuilder;
Formatter mFormatter;
mFormatBuilder = new StringBuilder();
mFormatter = new Formatter(mFormatBuilder, Locale.getDefault());
int totalSeconds = time / 1000;
int seconds = totalSeconds % 60;
int minutes = (totalSeconds / 60) % 60;
int hours = totalSeconds / 3600;
mFormatBuilder.setLength(0);
if (hours > 0) {
return mFormatter.format("%d:%02d:%02d", hours, minutes, seconds).toString();
} else {
return mFormatter.format("%02d:%02d", minutes, seconds).toString();
}
}
private void playVideo() {
File file = new File(Environment.getExternalStorageDirectory(), "cgx_video/db.mp4");
if (!file.exists()) {
file.mkdir();
}
Log.d("TAG", file.toString());
mVV.setVideoPath(file.getPath());
mVV.start();
}
private void initEvent() {
seekbar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
currentPosition=progress;
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
mVV.pause();
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
if(handler!=null){
Message message = Message.obtain();
message.what=0x133;
message.arg1=currentPosition;
handler.sendMessage(message);
}
}
});
}
@Override
protected void onPause() {
super.onPause();
Log.d("TAG", "---onPause");
mVV.pause();
backPositon = mVV.getCurrentPosition();
Log.d("TAG", "backPositon:" + backPositon);
}
@Override
protected void onStop() {
super.onStop();
Log.d("TAG", "---onStop");
}
@Override
protected void onResume() {
super.onResume();
Log.d("TAG", backPositon + "---backPositon");
mVV.seekTo(backPositon);
mVV.start();
}
@Override
protected void onDestroy() {
//in case of leak of memeroy
mExit=true;
super.onDestroy();
}
}