Java 如何使用 log.d 记录整数值？
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how to log an integer value with log.d?
提问by shan
I am very new to Android and am trying some simple log to get a random background color. I have the code and it returns an integer between 1-256, or so I think. I need to log the value to check if it's OK, but I'm not sure how to log it with Android.. I've been using System.out.println("stuff")to log stuff in the past but I believe that's not how you're supposed to do it in Android.
我对 Android 非常陌生，正在尝试一些简单的日志来获取随机背景颜色。我有代码，它返回一个 1-256 之间的整数，我认为是这样。我需要记录该值以检查它是否正常，但我不确定如何使用 Android 记录它.. 我过去一直在使用System.out.println("stuff")记录内容，但我相信这不是你应该做的在安卓中。
I have my class:
我有我的课：
public static int backgroundColorRandomize()
that returns
返回
return randomRGB;
and I try to log it like this
我试着像这样记录它
Log.d(backgroundColorRandomize(), "value = " + randomRGB);
but I need to convert the returned value from backgroundColorRandomizeto a String in order for it to log.
但我需要将返回的值从backgroundColorRandomize转换为字符串才能记录。
I tried java's .toStringbut I'm not sure I'm using it right.. Any help would be appreciated! Thanks!
我尝试过 java 的，.toString但我不确定我是否正确使用它.. 任何帮助将不胜感激！谢谢！
采纳答案by TheRedFox
Log.d("MYINT", "value: " + randomRGB);
回答by Jared Rummler
private static final String TAG = YourClass.class.getSimpleName();
...
android.util.Log.d(TAG, String.format("value = %d. random color = %d", randomRGB, backgroundColorRandomize()));
More info:
更多信息：
- http://developer.android.com/reference/android/util/Log.html
- https://developer.android.com/tools/debugging/debugging-log.html
- http://developer.android.com/reference/android/util/Log.html
- https://developer.android.com/tools/debugging/debugging-log.html
Logging libraries: https://android-arsenal.com/tag/57
回答by RestInPeace
Log.d(backgroundColorRandomize() + "" /* <-- all you need. */, "value = " + randomRGB);
回答by code monkey
I prefer String.valueOf(value).
我更喜欢String.valueOf(value)。
Log.d(String.valueOf(backgroundColorRandomize()), "value = " + randomRGB);
