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[英]How to display a length into minutes and seconds with a leading zero using printf()
[英]how to get length of audio in minutes and seconds in android
int duration = mediaPlayer.getDuration();
textView = (TextView) findViewById(R.id.tvduration); textView.setText(duration);
來自媒體播放器:
以毫秒為單位的持續時間,如果沒有可用的持續時間(例如,如果流式傳輸實時內容),則返回 -1。
這就是為什么您將從getDuration()
獲得以毫秒為單位的持續時間。
您可以使用它以字符串形式獲取MediaPlayer
的時間:
int duration = mediaPlayer.getDuration();
String time = String.format("%02d min, %02d sec",
TimeUnit.MILLISECONDS.toMinutes(duration),
TimeUnit.MILLISECONDS.toSeconds(duration) -
TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(duration))
);
然后當你在你的問題中寫道:
TextView textView = (TextView) findViewById(R.id.tvduration);
textView.setText(time);
public static String milliSecondsToTimer(long milliseconds) {
String finalTimerString = "";
String secondsString = "";
//Convert total duration into time
int hours = (int) (milliseconds / (1000 * 60 * 60));
int minutes = (int) (milliseconds % (1000 * 60 * 60)) / (1000 * 60);
int seconds = (int) ((milliseconds % (1000 * 60 * 60)) % (1000 * 60) / 1000);
// Add hours if there
if (hours == 0) {
finalTimerString = hours + ":";
}
// Pre appending 0 to seconds if it is one digit
if (seconds == 10) {
secondsString = "0" + seconds;
} else {
secondsString = "" + seconds;
}
finalTimerString = finalTimerString + minutes + ":" + secondsString;
// return timer string
return finalTimerString;
}
它已經 3 歲了,但沒有人回答正確,然后我會回答
public String format(long millis) {
long allSeconds = millis / 1000;
int allMinutes;
byte seconds, minutes, hours;
if (allSeconds >= 60) {
allMinutes = (int) (allSeconds / 60);
seconds = (byte) (allSeconds % 60);
if (allMinutes >= 60) {
hours = (byte) (allMinutes / 60);
minutes = (byte) (allMinutes % 60);
return String.format(Locale.US, "%d:%d:" + formatSeconds(seconds), hours, minutes, seconds);
} else
return String.format(Locale.US, "%d:" + formatSeconds(seconds), allMinutes, seconds);
} else
return String.format(Locale.US, "0:" + formatSeconds((byte) allSeconds), allSeconds);
}
public String formatSeconds(byte seconds) {
String secondsFormatted;
if (seconds < 10) secondsFormatted = "0%d";
else secondsFormatted = "%d";
return secondsFormatted;
}
毫秒 / 1000 將毫秒轉換為秒。 例子:
allSeconds = 68950 / 1000 = 68 seconds
如果 allSeconds 大於 60,我們會將分鍾與秒分開,然后我們將使用以下方法將 allSeconds = 68 轉換為分鍾:
minutes = allSeconds / 60 = 1 left 8
剩下的數字將是秒
seconds = allSeconds % 60 = 8
如果秒數小於 10,方法 formatSeconds(byte seconds) 添加零。
所以最后會是: 1:08
: 1:08
為什么是字節? Long 的性能很差,那么最好使用字節進行更長的操作。
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