Question

我正在制作一个家庭自动化仪器,使人们能够产生原始看法。

我有以下法典作为概念的证明:

I have created an android library project with the interface for the plugin:

package com.strutton.android.UIPlugInLib;

import android.app.Dialog;

public interface IRDroidInterface  {
    public Dialog buildConfigDialog(int ID);
    // Other method signatures here
}

我得以在一个单独的项目中(并将它出口到猪肉)制造一个小块样本,我向我的档案目录推导:

package com.strutton.android.testloadclass;

import com.strutton.android.UIPlugInLib.IRDroidInterface;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.Context;
import android.content.DialogInterface;
import android.view.View;
import android.widget.Button;

public class MyTestClass_IRDroidUIPlugIn extends Button implements IRDroidInterface{
    public final Activity mActivity;
    public MyTestClass_IRDroidUIPlugIn(Activity activity) {
        super((Context)activity);
        mActivity = activity;
        setText("I was loaded dynamically! (1)");
        setOnClickListener(new View.OnClickListener() {  
            public void onClick(View v) {  
                setText("I was Clicked dynamically! (" + getId() +")");
            }}  
                );
    }

    public Dialog buildConfigDialog(int ID){
        AlertDialog.Builder builder = new AlertDialog.Builder((Context)mActivity);
        builder.setMessage("Click the Button...(1)")
           .setCancelable(false)
           .setPositiveButton("Yes", new DialogInterface.OnClickListener() {
               public void onClick(DialogInterface dialog, int id) {
                    mActivity.dialogDismiss();
               }           
           });
        return builder.create();
    }
}

我可以在操作时装上这一类别,并使用以下代码(载于我的<编码>onCreate():

package com.strutton.android.testplugin;

        try {
        final File filesDir = this.getFilesDir();
        final File tmpDir = getDir("dex", 0);
        final DexClassLoader classloader = new DexClassLoader( filesDir.getAbsolutePath()+"/testloadclass.apk",
                tmpDir.getAbsolutePath(),
                null, this.getClass().getClassLoader());
        final Class<View> classToLoad = 
                (Class<View>) classloader.loadClass("com.strutton.android.testloadclass.MyTestClass_IRDroidUIPlugIn");
        mybutton = (View) classToLoad.getDeclaredConstructor(Context.class).newInstance(this);
        mybutton.setId(2);
        main.addView((View)mybutton);
      } catch (Exception e) {
        e.printStackTrace();
    }

    setContentView(main);
}
protected Dialog onCreateDialog(int id) {
    switch (id) {
        case 1:
                    // this is the offending line 57
            return ((IRDroidInterface) mybutton).buildConfigDialog(id);
    }
    return null;
}

我希望金字节能够显示金字节中定义的组合方言。我请<代码>buildConfigDialog(id) 查阅:

04-20 20:49:45.865: W/System.err(354): java.lang.ClassCastException: com.strutton.android.testloadclass.MyTestClass_IRDroidUIPlugIn
04-20 20:49:45.894: W/System.err(354): at com.strutton.android.testplugin.TestpluginActivity.onCreate(TestpluginActivity.java:57)

我在这里失踪了什么? 一天半以来,我一直在 go,无法找到解决办法。

提前感谢。

Answer 1

我怀疑问题在于,国际复兴开发银行的星座在你的申请中和在装货单上都存在。当你生动地装上MyClass-IRDroidUIPlug 在课堂上,由于从dex文档中提取,它从dex文档中而不是从你的申请中采用接口。

If you can ensure that the interface class doesn t get included in the dex file for the plugin, I believe what you have should work fine.

不幸的是,如果你用ec子或ant子重新建造假肢,这可能会trick。一个(两处)解决办法是,在接合物编造后,将接口类别从文件箱中删除。 I.e.,用锅炉拆组,删除接口的Smali文档,然后重新组装。

Answer 2

you can use your custom implementation of DexClassLoader to solve this problem. override findclass and return only interface that is in your app not library.

package re.execute;

import dalvik.system.DexClassLoader;

public class DexLoader extends DexClassLoader{
    public DexLoader(String dexPath, String optimizedDirectory, String libraryPath, ClassLoader parent) {
    super(dexPath, optimizedDirectory, libraryPath, parent);
}

@Override
protected Class<?> findClass(String name) throws ClassNotFoundException {
    if("re.execute.ILoader".equals(name)){
        return ILoader.class;
    }
    return super.findClass(name);
}
}

友情链接