Android版本号比较

AndroidVersionCompare.java

 public static int compareVersion(String version1, String version2) {

        if (TextUtils.isEmpty(version1)) {
            return -1;
        }
        if (TextUtils.isEmpty(version2)) {
            return -1;
        }
        if (!TextUtils.isEmpty(version1) && !TextUtils.isEmpty(version2)) {
            try {
                String[] version1Array = version1.split("\\.");
                String[] version2Array = version2.split("\\.");
                int len = Math.min(version1Array.length, version2Array.length);
                for (int i = 0; i < len; i++) {

                    int num1 = Integer.parseInt(version1Array[i]);
                    int num2 = Integer.parseInt(version2Array[i]);
                    if (num1 > num2) {
                        return 1;
                    } else if (num1 < num2) {
                        return -1;
                    } else {
                        continue;
                    }
                }
                return version1Array.length - version2Array.length;
            } catch (Exception e) {

            }
        }
        return 1;
    }