LC-stack-queue
232. 用栈实现队列最初写的 1234567891011121314151617181920212223242526272829303132333435363738val stack = Stack<Int>() // 元素栈val tempStack = Stack<Int>() // 备用fun push(x: Int) { stack.push(x
Jon's Blog
PerformanceJank
https://www.bilibili.com/video/BV1T44y1u7g6 6:41 数据到屏幕，渲染机制 https://www.jianshu.com/p/8a296b75d95f https://juejin.cn/post/6844904062610046990 https://testerhome.com/topics/29134 卡顿优化https://blog.csd
PerformanceANR
ANR https://play.google.com/console/u/0/developers/5313279702199603526/app/4975846927718251228/vitals/crashes?installedFrom=PLAY_STORE&days=30 https://developer.android.com/topic/performance/vital
PerformanceMemory
https://developer.android.com/studio/profile/memory-profiler?hl=zh-cn 查看内存限制，下面的命令不起作用 1234adb shell cat/system/build.prop // 需要root权限，没用adb shell getprop // 可以看全部的adb shell getprop dalvik.vm.h
LC-string
344. 反转字符串双指针 123456789101112131415fun reverseString(s: CharArray): Unit { var left = 0 var right = s.size - 1 while (left < right) { swap(s, left, right) left++
location
Location Permission changesBackground locationThe background location precision is the same as the foreground location precision, which depends on the location permissions that your app declares. user
LC-hash
242. 有效的字母异位词1234567891011121314151617fun isAnagram(s: String, t: String): Boolean { val record = IntArray(26) // 存整数，就用整形数 s.toCharArray().forEachIndexed { _, char -> record
fastjson
https://zonghaishang.gitbooks.io/fastjson-source-code-analysis/content/ FastJson为什么快https://tobebetterjavaer.com/gongju/fastjson.html#_05%E3%80%81%E6%88%91%E4%B8%BA%E4%BB%80%E4%B9%88%E5%BF%AB 为什么要进行序