【移动应用开发技术】Android离线Doc文档访问速度慢怎么办

【移动应用开发技术】Android离线Doc文档访问速度慢怎么办

这篇文章主要介绍Android离线Doc文档访问速度慢怎么办，文中介绍的非常详细，具有一定的参考价值，感兴趣的小伙伴们一定要看完！（1）我们在访问Android的离线文档，是非常慢的，由于需要加载一些图片或者是动态的脚本语言js代码，网上的解决方法是删除所有的js含有链接的代码，这种方法不但笨拙，还不可以有效解决；写一个java文件，运行后即可快速访问docimport

java.io.BufferedReader;

import

java.io.BufferedWriter;

import

java.io.File;

import

java.io.FileFilter;

import

java.io.FileNotFoundException;

import

java.io.FileReader;

import

java.io.FileWriter;

import

java.io.IOException;

import

java.util.Map;

import

java.util.UUID;

public

class

AndroidDoc

{

private

static

final

String

ANDROID_SDK_HOME

=

"ANDROID_SDK_HOME";

private

static

final

String

TAG

=

"<script

src=\"/jsapi\"

type=\"text/javascript\"></script>";

private

static

String

androidSDKHome;

public

static

void

main(String[]

args)

{

Map<String,

String>

map

=

System.getenv();

androidSDKHome

=

map.get(ANDROID_SDK_HOME);

if

(androidSDKHome

!=

null)

{

System.out.println("Detected

the

Android

SDK

Installation

path:"

+

androidSDKHome);

File

docs

=

new

File(androidSDKHome

+

"\\docs");

System.out.println("It

will

take

several

minutes,

please

wait...");

traverse(docs);

System.out

.println("Operation

Down!!!

Now

you

can

visit

Android

Doc

without

waiting...");

}

else

{

System.out

.println("Please

configure

the

Android

SDK

Environment

variable

(ANDROID_SDK_HOME)!");

}

}

/**

*

遍历Android

SDK安装目录下的docs目录

*

*

@param

dir

*/

private

static

void

traverse(File

dir)

{

if

(dir.isDirectory())

{

File[]

files

=

dir.listFiles(new

FileFilter()

{

@Override

public

boolean

accept(File

file)

{

if

(file.isFile()

&&

file.getName().endsWith(".html"))

{

BufferedReader

reader

=

null;

try

{

reader

=

new

BufferedReader(new

FileReader(file));

String

buffer;

while

((buffer

=

reader.readLine())

!=

null)

{

if

(buffer.trim().equalsIgnoreCase(TAG))

{

return

true;

}

}

}

catch

(Exception

e)

{

e.printStackTrace();

}

finally

{

try

{

reader.close();

}

catch

(IOException

e)

{

e.printStackTrace();

}

}

}

else

if

(file.isDirectory())

{

return

true;

}

return

false;

}

});

for

(File

file

:

files)

{

if

(file.isDirectory())

{

System.out.println("Scanning

Folder:"

+

file.getAbsolutePath());

traverse(file);

}

else

{

doChange(file);

}

}

}

}

/**

*

注释html中的某行Javascript代码

*

*

@param

file

*

@return

*/

private

static

boolean

doChange(File

file)

{

System.out.println("Extracting

File:"

+

file.getAbsolutePath()

+

"...");

String

desPath

=

file.getParent()

+

"\\"

+

UUID.randomUUID().toString()

+

".html";

File

des

=

new

File(desPath);

BufferedReader

reader

=

null;

BufferedWriter

writer

=

null;

try

{

des.createNewFile();

reader

=

new

BufferedReader(new

FileReader(file));

writer

=

new

BufferedWriter(new

FileWriter(des));

String

buffer;

while

((buffer

=

reader.readLine())

!=

null)

{

if

(buffer.trim().equalsIgnoreCase(TAG))

{

buffer

=

"<!--"

+

TAG

+

"-->";

}

writer.write(buffer

+

"\n");

writer.flush();

}

return

true;

}

catch

(FileNotFoundException

e)

{

e.printStackTrace();

}

catch

(IOException

e)

{

e.printStackTrace();

}

finally

{

try

{

reader.close();

writer.close();

file.delete();

des.renameTo(file);

}

catch

(IOException

e)

{

e.printStackTrace();

}

}

return

false;

}

}编译运行后，即可（2）我的方法是，是有一个单独的游