申请会员ID：a807603044【冒充他人作品申请】
1、申 请 I D：a8076030442、个人邮箱：807603044@qq.com
3、原创技术文章：
大家好，今天给大家分享一下Android中的拿来主义，我们时常会碰到一个自己觉得很漂亮很帅气的应用(apk),所以我们会尝试用WinRAR等之类工具查看，而一般的应用程序打包后的目录通常是这样的如下图：http://hi.csdn.net/attachment/201007/6/0_127842027099yj.gif当然res里的图片是可以拿来就用的(笔者的好多应用的图片都是从别人的apk里扣出来的)，而诸如layout里的布局及权限文件(AndroidManifest.xml)已经是一堆乱码了，完全看不懂，想看看别人是怎么布局的都不容易。还有源代码都被编译成了classes.dex，完全看不出什么线索。基于以上的困惑，笔者给大家分享一下Android中的拿来主义。二、所需工具(点击各自连接进入下载页面)：1.AXMLPrinter2.jar2.baksmali.jar3.smali.jar三、准备工作为了方便起见，作者把AXMLPrinter2.jar,还有baksmali.jar,还有smali.jar(下下来为了方便重命名)，放在Android SDK tools文件夹中如下图所示:http://hi.csdn.net/attachment/201007/6/0_1278422814OtL8.gif为了便于大家更容易程序比对，作者写了一个简单的应用(叫APKInstaller)目录结构如下图所示:http://hi.csdn.net/attachment/201007/6/0_1278423065QDw8.gif四、开始拿来主义1.用AXMLPrinter2.jar查看apk中的布局xml文件:将ApkInstaller应用生成的ApkInstaller.apk(为了方便起见放到tools目录里)用WinRAR等工具打开，将res/layout/main.xml解压出来(也还是放在tools目录里哦)打开main.xml文件，内容如下(一堆天文):http://hi.csdn.net/attachment/201007/6/0_12784234694nns.gif这时候AXMLPrinter2.jar派上用场了，打开cmd终端，一直进入到tools目录下，输入如下命令:java -jar AXMLPrinter2.jar main.xml > main.txt. (如下图所示)http://hi.csdn.net/attachment/201007/6/0_12784239040J8s.gif打开main.txt代码如下(是不是有个123了呵呵~):
为了比对打开源程序中的main.xml代码如下(大家比对一下吧):
2.用baksmali.jar反编译classes.dex:将ApkInstaller.apk里的classes.dex解压到tools目录里，然后baksmali.jar就派上用场了，在cmd命令行里输入如下命令:java -jar baksmali.jar -o classout/ classes.dex.(如下图所示:)http://hi.csdn.net/attachment/201007/9/0_1278689088FZzB.gif你将会发现在tools里多一个classout文件夹里面(我代码的包目录结构清晰可见呀),如下图所示:
http://hi.csdn.net/attachment/201007/9/0_1278689230oeZ2.gif从上面看出除了Android本身资源的类R开头的，我的源程序里只有一个ApkInstaller.java，完全吻合，真TMD的猥琐呵呵~下面我们看一下ApkInstaller.smali内容是什么，如以下代码：
view plaincopy to clipboardprint?
[*].class public Lcom/tutor/apkinstaller/ApkInstaller;
[*].super Landroid/app/Activity;
[*].source "ApkInstaller.java"# instance fields
[*].field private apkWeb:Landroid/webkit/WebView;
[*]# direct methods
[*].method public constructor <init>()V
[*] .registers 1 .prologue
[*] .line 8 invoke-direct {p0}, Landroid/app/Activity;-><init>()V
[*] return-void.end method
[*]# virtual methods
[*].method public onCreate(Landroid/os/Bundle;)V
[*] .registers 5 .parameter "savedInstanceState" .prologue
[*] .line 13 invoke-super {p0, p1}, Landroid/app/Activity;->onCreate(Landroid/os/Bundle;)V
[*] .line 14 const/high16 v2, 0x7f03 invoke-virtual {p0, v2}, Lcom/tutor/apkinstaller/ApkInstaller;->setContentView(I)V
[*] .line 15 const/high16 v2, 0x7f05 invoke-virtual {p0, v2}, Lcom/tutor/apkinstaller/ApkInstaller;->findViewById(I)Landroid/view/View;
[*] move-result-object v2
[*] check-cast v2, Landroid/webkit/WebView;
[*] iput-object v2, p0, Lcom/tutor/apkinstaller/ApkInstaller;->apkWeb:Landroid/webkit/WebView;
[*] .line 16 iget-object v2, p0, Lcom/tutor/apkinstaller/ApkInstaller;->apkWeb:Landroid/webkit/WebView;
[*] invoke-virtual {v2}, Landroid/webkit/WebView;->getSettings()Landroid/webkit/WebSettings;
[*] move-result-object v1
[*] .line 17 .local v1, webSettings:Landroid/webkit/WebSettings;
[*] const/4 v2, 0x1 invoke-virtual {v1, v2}, Landroid/webkit/WebSettings;->setJavaScriptEnabled(Z)V
[*] .line 19 const-string v0, "http://frankiewei.net/apk/demos/main/index.html#home" .line 20 .local v0, apkUrl:Ljava/lang/String;
[*] iget-object v2, p0, Lcom/tutor/apkinstaller/ApkInstaller;->apkWeb:Landroid/webkit/WebView;
[*] invoke-virtual {v2, v0}, Landroid/webkit/WebView;->loadUrl(Ljava/lang/String;)V
[*] .line 21 return-void.end method
[*]
view plaincopy
[*].class public Lcom/tutor/apkinstaller/ApkInstaller;
[*].super Landroid/app/Activity;
[*].source "ApkInstaller.java"
[*]# instance fields
[*].field private apkWeb:Landroid/webkit/WebView;
[*]# direct methods
[*].method public constructor <init>()V
[*] .registers 1
[*] .prologue
[*] .line 8
[*] invoke-direct {p0}, Landroid/app/Activity;-><init>()V
[*] return-void
[*].end method
[*]# virtual methods
[*].method public onCreate(Landroid/os/Bundle;)V
[*] .registers 5
[*] .parameter "savedInstanceState"
[*] .prologue
[*] .line 13
[*] invoke-super {p0, p1}, Landroid/app/Activity;->onCreate(Landroid/os/Bundle;)V
[*] .line 14
[*] const/high16 v2, 0x7f03
[*] invoke-virtual {p0, v2}, Lcom/tutor/apkinstaller/ApkInstaller;->setContentView(I)V
[*] .line 15
[*] const/high16 v2, 0x7f05
[*] invoke-virtual {p0, v2}, Lcom/tutor/apkinstaller/ApkInstaller;->findViewById(I)Landroid/view/View;
[*] move-result-object v2
[*] check-cast v2, Landroid/webkit/WebView;
[*] iput-object v2, p0, Lcom/tutor/apkinstaller/ApkInstaller;->apkWeb:Landroid/webkit/WebView;
[*] .line 16
[*] iget-object v2, p0, Lcom/tutor/apkinstaller/ApkInstaller;->apkWeb:Landroid/webkit/WebView;
[*] invoke-virtual {v2}, Landroid/webkit/WebView;->getSettings()Landroid/webkit/WebSettings;
[*] move-result-object v1
[*] .line 17
[*] .local v1, webSettings:Landroid/webkit/WebSettings;
[*] const/4 v2, 0x1
[*] invoke-virtual {v1, v2}, Landroid/webkit/WebSettings;->setJavaScriptEnabled(Z)V
[*] .line 19
[*] const-string v0, "http://frankiewei.net/apk/demos/main/index.html#home"
[*] .line 20
[*] .local v0, apkUrl:Ljava/lang/String;
[*] iget-object v2, p0, Lcom/tutor/apkinstaller/ApkInstaller;->apkWeb:Landroid/webkit/WebView;
[*] invoke-virtual {v2, v0}, Landroid/webkit/WebView;->loadUrl(Ljava/lang/String;)V
[*] .line 21
[*] return-void
[*].end method
同样为了比对我们看一下ApkInstaller.java的源代码如下:
view plaincopy to clipboardprint?
[*]package com.tutor.apkinstaller;
[*]import android.app.Activity;
[*]import android.os.Bundle;
[*]import android.webkit.WebSettings;
[*]import android.webkit.WebView;
[*]public class ApkInstaller extends Activity {
[*]
[*]private WebView apkWeb;
[*] @Override public void onCreate(Bundle savedInstanceState) {
[*] super.onCreate(savedInstanceState);
[*] setContentView(R.layout.main);
[*] apkWeb = (WebView)findViewById(R.id.apk_web);
[*] WebSettings webSettings = apkWeb.getSettings();
[*] webSettings.setJavaScriptEnabled(true);
[*]
[*] String apkUrl = "http://frankiewei.net/apk/demos/main/index.html#home";
[*] apkWeb.loadUrl(apkUrl);
[*] }
[*]}
view plaincopy
[*]package com.tutor.apkinstaller;
[*]import android.app.Activity;
[*]import android.os.Bundle;
[*]import android.webkit.WebSettings;
[*]import android.webkit.WebView;
[*]public class ApkInstaller extends Activity {
[*]
[*] private WebView apkWeb;
[*] @Override
[*] public void onCreate(Bundle savedInstanceState) {
[*] super.onCreate(savedInstanceState);
[*] setContentView(R.layout.main);
[*] apkWeb = (WebView)findViewById(R.id.apk_web);
[*] WebSettings webSettings = apkWeb.getSettings();
[*] webSettings.setJavaScriptEnabled(true);
[*]
[*] String apkUrl = "http://frankiewei.net/apk/demos/main/index.html#home";
[*] apkWeb.loadUrl(apkUrl);
[*] }
[*]}
我相信大家 已经能看出来门道来了吧，hoho~3.用smali.jar编译classout成classes.dex:我们上一步已经将classes.dex反编译成了.smali文件，好了，我们看看smali文件看够了，在偿试把它编译成classes.dex吧，输入如下命令:java -jar smali.jar classout/ -o classes.dex.如下图所示:http://hi.csdn.net/attachment/201007/9/0_1278691360fK0g.gif我们可以将新生成的classes.dex塞入ApkInstaller.apk里覆盖原来的classes.dex文件，这样我们的apk还是一样能用的哦~Ok~今天就暂时写到这里，这片文章真是不容易呀，写了这么长时间，希望能够通过
搜索了下到处都是这文章，是你原创？http://blog.csdn.net/baolong47/article/details/7411462
页:
[1]