android file path

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问题出现的异常为:java.lang.IllegalArgumentException: File /mnt/sdcard/crazyit.bin contains a pathseparator. 主要是由于在打开文件的输出流时使用的openFileOutput()方法的第一参数用于指定文件名称,不能包含路径分隔符“/” 解决方法 // FileInputStream fis =openFileInput(sdCardDir.getCanonicalPath()+FILE_N…

安卓各文件存储路径汇总（Android file path)

写下来,省得以后不记得到处翻: Environment.getDataDirectory() = /data Environment.getDownloadCacheDirectory() = /cache Environment.getExternalStorageDirectory() = /mnt/sdcard Environment.getExternalStoragePublicDirectory(“test”) = /mnt/sdcard/test Environment.getRo…

《ArcGIS Runtime SDK for Android开发笔记》——问题集：Error:Error: File path too long on Windows, keep below 240 characters

1.前言在使用Android Studio开发环境时,经常会爆出以下错误,虽然具体细节内容各有不同,但是说明的都是同一个问题,在windows中使用过长的路径,超过240字符. Error:Error: File path too long on Windows, keep below 240 characters : C:\Users\admin\Work\3-Code\4-ArcGIS Android Sample Code\ArcGISAndroidQuartzSample\vector…

Android File Hierarchy : System Structure Architecture Layout

Most of the Android user are using their Android phone just for calls, SMS, browsing and basic apps, But form the development prospective, we should know about Android internal structure. Android uses several partitions (like boot, system, recovery,…

[LeetCode] Longest Absolute File Path 最长的绝对文件路径

Suppose we abstract our file system by a string in the following manner: The string "dir\n\tsubdir1\n\tsubdir2\n\t\tfile.ext" represents: dir subdir1 subdir2 file.ext The directory dir contains an empty sub-directory subdir1 and a sub-directory …

Android中Path类的lineTo方法和quadTo方法画线的区别

转载:http://blog.csdn.net/stevenhu_223/article/details/9229337 当我们需要在屏幕上形成画线时,Path类的应用是必不可少的,而Path类的lineTo和quadTo方法实现的绘制线路形式也是不一样的,下面就以代码的实现来直观的探究这两个方法的功能实现区别: 1. Path--->quadTo(float x1, float y1, float x2, float y2): 该方法的实现是当我们不仅仅是画一条线甚至是画弧线时会形成平滑的曲线…