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使用此媒體播放器播放音樂時，每當有來電時，按下主屏幕按鈕並出現鎖屏並返回到應用程序在上述問題後...應用程序中的播放按鈕不響應....我想暫停音樂，直到我返回到應用程序，並應繼續播放它已停止...... plz幫助.. 。當手機收到來電時暫停音樂，主屏幕按鈕被按下，當手機屏幕關閉時（鎖屏）
ekdanta.java
public class ekdanta extends AppCompatActivity implements Runnable,View.OnClickListener,SeekBar.OnSeekBarChangeListener {
TextView tv4;
Button b9, b10,but19;
int count = 0;
MediaPlayer play;
SeekBar seek_bar;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_ekdanta);
tv4 = (TextView) findViewById(R.id.textView9);
tv4.setTextSize((float)21.5);
tv4.setText(Html.fromHtml(getString(R.string.thirteen)));
b9 = (Button) findViewById(R.id.b9);
b10 = (Button) findViewById(R.id.b10);
seek_bar = (SeekBar) findViewById(R.id.seekBar);
seek_bar.setOnSeekBarChangeListener(this);
seek_bar.setEnabled(false);
but19 = (Button) findViewById(R.id.button19);
but19.setOnClickListener(this);
}
public void run() {
int currentPosition= play.getCurrentPosition();
int total = play.getDuration();
while (play!=null && currentPosition<total) {
try {
Thread.sleep(1000);
currentPosition= play.getCurrentPosition();
} catch (InterruptedException e) {
return;
} catch (Exception e) {
return;
}
seek_bar.setProgress(currentPosition);
}
}
public void onClick(View v) {
if (v.equals(but19)) {
if (play == null) {
play = MediaPlayer.create(getApplicationContext(), R.raw.ekadanta);
seek_bar.setEnabled(true);
}
if (play.isPlaying()) {
play.pause();
but19.setText("Play");
} else {
play.start();
but19.setText("Pause");
seek_bar.setMax(play.getDuration());
new Thread(this).start();
}
}
}
@Override
protected void onPause() {
if(play!=null){
play.stop();
}
super.onPause();
}
public void increase(View inc) {
count++;
if (count == 1) {
tv4.setTextSize(25);
} else if (count == 2) {
tv4.setTextSize(30);
} else if (count >= 3) {
count = 3;
tv4.setTextSize(40);
}
}
public void decrease(View dec) {
count--;
if (count <= 0) {
tv4.setTextSize((float)21.5);
count = 0;
}
if (count == 1) {
tv4.setTextSize(25);
} else if (count == 2) {
tv4.setTextSize(30);
} else if (count == 3) {
tv4.setTextSize(40);
}
}
@Override
public void onProgressChanged(SeekBar seek_bar, int progress, boolean fromUser) {
try{
if(play.isPlaying()||play!=null){
if (fromUser)
play.seekTo(progress);
}
else if(play==null){
Toast.makeText(getApplicationContext(),"First Play",Toast.LENGTH_SHORT).show();
seek_bar.setProgress(0);
}
}
catch(Exception e){
Log.e("seek bar",""+e);
seek_bar.setEnabled(false);
}
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
}
}
試試這個音樂http://www.tutorialsface.com/2015/08/android-custom-notification-tutorial/ –
我想暫停任何來電的音樂，當屏幕關閉，並且當主頁按鈕被按下時....並且應該能夠在應用程序中播放音樂...... – Devk
如果onStop和onStop在其播放和onStart內部播放（如果它暫停播放），則會覆蓋onStop和onStop。在調用這些方法時查看文檔。結帳更多在這裏：https://developer.android.com/training/basics/activity-lifecycle/stopping.html –