[英]Superpowered Android NDK: get positionPercent to update audio progress seekbar
[英]Android Mediaplayer - based on seekbar progress update the elapsed time of audio in textview
使用Mediaplayer播放音頻文件。
一切正常,但是音頻的播放時間需要在textview中更新。
textview.setText(mediaplayer.getCurrentPosition()/100000.0).toString();
這給出了雙精度值,但是如果結束時間超過一分鍾,並且經過的時間為1分鍾,則顯示0:60 ...但應為1:00 ...
還有其他方法可以根據搜索欄進度顯示經過的時間嗎?
謝謝。
這有效-取自另一篇文章的答案: 如何正確顯示MediaPlayer的位置/持續時間?
DateFormat適用於日期,不適用於時間間隔。 因此,如果位置為1秒,則數據格式會將其解釋為意味着日期/時間是日歷開始后的1秒。
private String getTimeString(long millis) {
StringBuffer buf = new StringBuffer();
int hours = millis / (1000*60*60);
int minutes = ( millis % (1000*60*60) ) / (1000*60);
int seconds = ( ( millis % (1000*60*60) ) % (1000*60) ) / 1000;
buf
.append(String.format("%02d", hours))
.append(":")
.append(String.format("%02d", minutes))
.append(":")
.append(tring.format("%02d", seconds));
return buf.toString();
}
然后做類似的事情
totalTime.setText(getTimeString(duration));
currentTime.setText(getTimeString(position));
音樂示例應用程序具有一個MusicUtils類:
/* Try to use String.format() as little as possible, because it creates a
* new Formatter every time you call it, which is very inefficient.
* Reusing an existing Formatter more than tripled the speed of
* makeTimeString().
* This Formatter/StringBuilder are also used by makeAlbumSongsLabel()
*/
private static StringBuilder sFormatBuilder = new StringBuilder();
private static Formatter sFormatter = new Formatter(sFormatBuilder, Locale.getDefault());
private static final Object[] sTimeArgs = new Object[5];
public static String makeTimeString(Context context, long secs) {
String durationformat = context.getString(
secs < 3600 ? R.string.durationformatshort : R.string.durationformatlong);
/* Provide multiple arguments so the format can be changed easily
* by modifying the xml.
*/
sFormatBuilder.setLength(0);
final Object[] timeArgs = sTimeArgs;
timeArgs[0] = secs / 3600;
timeArgs[1] = secs / 60;
timeArgs[2] = (secs / 60) % 60;
timeArgs[3] = secs;
timeArgs[4] = secs % 60;
return sFormatter.format(durationformat, timeArgs).toString();
}
您可以使用。
但是,如果將getCurrentPosition()的結果除以1000,則carlovv的解決方案也將起作用,因為該方法將返回毫秒。
這就是你的strings.xml
<string translatable="false" name="durationformatshort">
<xliff:g id="format">%2$d:%5$02d</xliff:g>
</string>
<string translatable="false" name="durationformatlong">
<xliff:g id="format">%1$d:%3$02d:%5$02d</xliff:g>
</string>
您可以將getCurrentPosition轉換為date並使用dateFormat設置輸出字符串。
Date d = new Date();
d.setTime(mediaplayer.getCurrentPosition());
private final SimpleDateFormat timeFormat = new SimpleDateFormat("HH.mm");
String time = timeFormat.format(d).toString();
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.