先扯兩句
這部分內(nèi)容原本是想寫成一個(gè)附錄的，不過細(xì)想起來，這兩部分內(nèi)容在開發(fā)中還是很好用的偷懶手段，這里也就單獨(dú)開了一篇博客。
還是先上我的Git庫。
MyBaseApplication (https://github.com/BanShouWeng/MyBaseApplication)
并給大家展示個(gè)神器，叫Android知識(shí)點(diǎn)——目錄，好了，閑言少敘，下面進(jìn)入正題。
正文
Log日志輸出顯示不完整
不知道大家在開發(fā)過程中有沒有遇到過這種尷尬，那就是我們想要看打印日志信息的時(shí)候，命名日志信息全都得到了，可是當(dāng)我們?cè)贏ndroid Monitor中查看的時(shí)候，卻在關(guān)鍵的地方戛然而止，那種感覺別提多難受了，如果不是和諧社會(huì)，真想把開發(fā)AS的找來狠狠的揍一頓。
不過轉(zhuǎn)念一想，能不能打得過對(duì)方暫且不論，有找他當(dāng)前在那的時(shí)間成本，我還不如想想怎么解決當(dāng)前的問題，不然領(lǐng)導(dǎo)老板想揍我可不用費(fèi)力找，為了那么點(diǎn)工資，我還真不敢還手。
功夫不負(fù)有心人，終于找到了天才哆啦夢(mèng)在這篇解決AndroidStudio的logcat顯示超長字符串的問題，看到人家名字起得這么專業(yè)，我這小心臟又被狠狠的暴擊了一下，下面是天才哆啦夢(mèng)的分析：
問題描述： 使用Log打印服務(wù)器返回的json數(shù)據(jù)時(shí)，有時(shí)候數(shù)據(jù)過長，在AndroidStudio的logcat只顯示了一部分。沒有完整的json體，首先最尷尬的是沒法使用AndroidStudio的插件一鍵生成對(duì)應(yīng)的數(shù)據(jù)實(shí)體了，哈哈。為了使用插件“偷懶”，我目標(biāo)把數(shù)據(jù)源全部打印在logcat上。
解決思路： 首先，要知道LogCat中的每次打印的message是有上限的，原來logcat在實(shí)現(xiàn)上對(duì)于message的內(nèi)存分配大概是4k左右.所以超過的內(nèi)容都直接被丟棄了。這就是我們使用Log打印長json字符串，結(jié)果不完整的原因。我寫一個(gè)工具類，用遞歸的思想處理這個(gè)問題。
代碼部分，我做了一定的修改，顯示的長度寫死成最大值“3999”至于為什么沒用4000，天才哆啦夢(mèng)博客中說不行，我就沒嘗試，畢竟這部分無關(guān)大雅，其后就是參數(shù)的順序，tag在前，顯示的logContent在后，畢竟原本log的順序就是這樣，這個(gè)順序也舒服一些。當(dāng)然，這所謂的修改與沒修改差別也不大，就是一個(gè)習(xí)慣的調(diào)整罷了。
private static boolean debug = true;
private static int showLength = 3999;
/**
* 分段打印出較長log文本
*
* @param logContent 打印文本
* @param tag 打印log的標(biāo)記
*/
public static void info(String tag, String logContent) {
if (!debug) {
return;
}
if (logContent.length() > showLength) {
String show = logContent.substring(0, showLength);
i(tag, show);
/*剩余的字符串如果大于規(guī)定顯示的長度，截取剩余字符串進(jìn)行遞歸，否則打印結(jié)果*/
if ((logContent.length() - showLength) > showLength) {
String partLog = logContent.substring(showLength, logContent.length());
info(tag, partLog);
} else {
String printLog = logContent.substring(showLength, logContent.length());
i(tag, printLog);
}
} else {
e(tag, logContent);
}
}
這里我貼出的代碼是i的，也就是information，當(dāng)然也可以再封裝一個(gè)error的，這部分也視個(gè)人習(xí)慣而定。其中的debug參數(shù)是為了方便日志管理，只需要在這里做一下修改，就可以控制全局日志的輸出與否，避免發(fā)布的時(shí)候，個(gè)別日志沒有關(guān)閉，導(dǎo)致信息泄漏。
//網(wǎng)絡(luò)訪問代碼
@Override
public void onNext(@NonNull ResponseBody responseBody) {
try {
String responseString = responseBody.string();
Log.i("responseString", responseString);
LogUtil.info("response", responseString);
} catch (IOException e) {
e.printStackTrace();
}
}
修改前后的日志對(duì)比
//修改前
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//修改后
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GsonFormat
打印日志在開發(fā)過程中自然是必不可少的環(huán)節(jié)，可是即便如此，上面的日志部分也不應(yīng)該放這么多的日志，隨便找個(gè)例子不就好了嗎？
可如果大家細(xì)心一些就會(huì)發(fā)現(xiàn)，上面打印出來的日志是json串，而我們?cè)谑褂胘son的時(shí)候，習(xí)慣性網(wǎng)絡(luò)訪問結(jié)束后便用gson或者FastJson將json轉(zhuǎn)換為bean對(duì)象（bean不理解的可以參見我的博客《一個(gè)Android工程的從零開始》-1前期準(zhǔn)備），這個(gè)是大家都知道的常識(shí)了，可是這個(gè)bean的創(chuàng)建卻是痛苦異常的過程，需要分析整個(gè)json的層次機(jī)構(gòu)，還要考慮創(chuàng)建參數(shù)的數(shù)據(jù)類型，小的json還好說，可是上面這一坨，我是有一種要打人的沖動(dòng)。
所以鋪墊了這么多，終于輪到我們的GsonFormat 登場(chǎng)了，插件的集成過程可以參見我的博客ButterKnife以及Android ButterKnife Zelezny中Android ButterKnife Zelezny插件的集成過程。
插件集成成功之后，我們就可以好好玩玩了，首先，我們需要將之前截取成一段一段的json拼接到一起，然后alt + insert快捷鍵，在菜單欄中選擇GsonFormat，在彈出的對(duì)話框中輸入前面拼接好的json串，可以格式化查看，也可以直接點(diǎn)擊ok，隨后讓我們看看有沒有需要修改的數(shù)據(jù)類型，基本不需要修改，再次點(diǎn)擊ok等待片刻就能生成我們所需要的bean對(duì)象。
這里寫圖片描述
