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app/src/main/java/com/gh/common/util/SpeedUtils.java

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+package com.gh.common.util;
+
+public class SpeedUtils {
+
+	public static String getSpeed(long kSpeed) {
+		if (kSpeed >= 1000) {
+			float mSpeed = kSpeed / 1024f;
+			String str = mSpeed + "";
+			if (str.length() > 4) {
+				str = str.substring(0, 4);
+			}
+			return str + "MB/s";
+		}
+		return kSpeed + "K/s";
+	}
+
+	public static String getRemainTime(long totalSize, long currentSize,
+			long speed) {
+		long remainSize = totalSize - currentSize;
+		long remainTime = 0;
+		if (speed != 0) {
+			remainTime = remainSize / speed;
+		} else {
+			return "0分0秒";
+		}
+		int hour = (int) (remainTime / 3600);
+		remainTime = (remainTime - hour * 3660);
+		int minute = (int) (remainTime / 60);
+		int second = (int) (remainTime - minute * 60);
+		if (hour != 0) {
+			return hour + "时" + minute + "分" + second + "秒";
+		} else if (minute != 0) {
+			return minute + "分" + second + "秒";
+		} else {
+			return second + "秒";
+		}
+	}
+}