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activity_player.java
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112 lines (98 loc) · 2.69 KB
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package com.example.tx1;
import android.app.Activity;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.SeekBar;
import android.widget.SeekBar.OnSeekBarChangeListener;
public class activity_player extends Activity {
private MediaPlayer mPlayer;
private Button bt_start;
private Button bt_pause;
private Button bt_stop;
private Button bt_up;
private Button bt_down;
private Button bt_loop;
private SeekBar sb_progress;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_player);
mPlayer = MediaPlayer.create(this, R.raw.music);
initUI();
}
private void initUI() {
bt_start = (Button) findViewById(R.id.bt_start);
bt_pause = (Button) findViewById(R.id.bt_pause);
bt_stop = (Button) findViewById(R.id.bt_stop);
bt_up = (Button) findViewById(R.id.bt_up);
bt_down = (Button) findViewById(R.id.bt_down);
bt_loop = (Button) findViewById(R.id.bt_loop);
sb_progress = (SeekBar) findViewById(R.id.sb_progress);
bt_start.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// 播放
mPlayer.start();
}
});
bt_pause.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// 暂停
mPlayer.pause();
}
});
bt_stop.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// 停止
mPlayer.stop();
}
});
bt_up.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// 增大音量
mPlayer.setVolume(1.0f, 1.0f);
}
});
bt_down.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// 减小音量
mPlayer.setVolume(0.0f, 0.0f);
}
});
bt_loop.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// 设置音乐循环播放
mPlayer.setLooping(true);
}
});
sb_progress.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
// 获取seekbar当前进度值
int progress = seekBar.getProgress();
// 获取音乐总时长
int mMax = mPlayer.getDuration();
// 获取seekbar最大进度值
int sMax = seekBar.getMax();
// 播放当前seekbar进度所对应的内容
mPlayer.seekTo(mMax * progress / sMax);
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
}
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
// TODO Auto-generated method stub
}
});
}
}