網上找的乙個指令碼，電腦系統為windows 親測 好用。
將下面兩個檔案printhex.ps1、dex-method-count.bat拷貝到乙個資料夾下，檔案名字和字尾都不要變，然後將需要檢測的classes.dex檔案也放在這個資料夾下
開啟命令列並切到當前目錄下，執行命令
dex-method-count.bat
classes.dex
counting methods in dex file classes.dex
number of methods is 63952
方法數沒有超過65535個就可以啦，不然就要分包了
printhex.ps1
<#
.synopsis
outputs the number of methods in a dex file.
.parameter path
specifies the path to a file. wildcards are not permitted.
#>
param(
[parameter(position=0,mandatory=$true)]
[string] $path
)if ( -not (test-path -literalpath $path) )
$item = get-item -literalpath $path -force
if ( -not ($? -and ($item -is [system.io.fileinfo])) )
if ( $item.length -gt [uint32]::maxvalue )
$stream = [system.io.file]::openread($item.fullname)
$buffer = new-object byte 2
$stream.position = 88
$bytesread = $stream.read($buffer, 0, 2)
$output = $buffer[0..1]
#(" ") -f $output
$outputdec = $buffer[1]*256 + $buffer[0]
"number of methods is " + $outputdec
$stream.close()
@echo off
if "%1"=="" goto missingfilenameerror
ifexist "%1" (goto continueprocessing) else (goto filedoesntexist)
:continueprocessing
set filenametoprocess=%1
set filenamefordx=%~n1.dex
if "%~x1"==".dex" goto processwithpowershell
rem preprocess jar with dx
if "%~x1"==".jar" (
echo processing jar %filenametoprocess% with dx!
call dx --dex --output=%filenamefordx%
%filenametoprocess%
set filenametoprocess=%filenamefordx%
iferrorlevel
1goto dxprocessingerror
):processwithpowershell
echo counting methods in dex file %filenametoprocess%
call powershell -noexit -executionpolicy bypass "& ".\printhex.ps1" %filenametoprocess%
goto end
:missingfilenameerror
@echo missing filename for processing
goto end
:dxprocessingerror
@echo error processing file %1% with dx!
goto end
:filedoesntexist
@echo file %1% doesn't exist!
goto end
:end
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