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Android应用开发性能优化完全分析 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...的原理才可以将该工具使用的得心应手。
2-3-8 使用traces.txt文件进行ANR分析优化
ANR（Application Not Responding）是Android中AMS与WMS监测应用响应超时的表现；之所以把臭名昭著的ANR单独作为UI性能卡顿的分析来说明是因为ANR是直接卡...
Android; Check if file exists without creating a new one
... me:
File file = new File(getApplicationContext().getFilesDir(),"whatever.txt");
if(file.exists()){
//Do something
}
else{
//Nothing
}
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Iterating each character in a string using Python
...anything in python using the for loop construct,
for example, open("file.txt") returns a file object (and opens the file), iterating over it iterates over lines in that file
with open(filename) as f:
for line in f:
# do something with line
If that seems like magic, well it kinda is,...
SQLite error 'attempt to write a readonly database' during insert?
...dy" or "apache". Have your script create a file (file_put_contents('./foo.txt', 'Hello, world');), that will show you who it's running as. Chances are that you'll need to have the script create the SQLite database. This may be an entertaining exercise if you already have data in your current file...
Staging Deleted files
...for me on Ubuntu 12.04, however when I manually do git add -u deleted_file.txt it doens't work. My git is 1.7.9.5
– Dimitry K
Feb 19 '15 at 17:56
...
How can I detect if the user is on localhost in PHP?
...list = false;
$isipallowed = false;
$filename = "resolved-ip-list.txt";
$filename = substr(md5($filename), 0, 8)."_".$filename; // Just a spoon of security or just remove this line
if (file_exists($filename))
{
// If cache file has less than 1 day old use it
if ...
Dependency graph of Visual Studio projects
...ents\MyProject" | Out-File "C:\Users\DanTup\Documents\MyProject\References.txt"
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How to dump a dict to a json file?
...ted to add this (Python 3.7)
import json
with open("dict_to_json_textfile.txt", 'w') as fout:
json_dumps_str = json.dumps(a_dictionary, indent=4)
print(json_dumps_str, file=fout)
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i...
Calculate a MD5 hash from a string
... String");
string hashFile = EasyMD5.Hash(System.IO.File.OpenRead("myFile.txt"));
-
class EasyMD5
{
private static string GetMd5Hash(byte[] data)
{
StringBuilder sBuilder = new StringBuilder();
for (int i = 0; i < data.Length;...
How to clear the cache of nginx?
...se:
expires modified +90d;
E.G.:
location ~* ^.+\.(css|js|jpg|gif|png|txt|ico|swf|xml)$ {
access_log off;
root /path/to/htdocs;
expires modified +90d;
}
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