Android教程網 >> Android技術 >> Android開發實例 >> Andorid 啟用另一個程序某些方法

Andorid 啟用另一個程序某些方法

編輯：Android開發實例

DexFile df = new DexFile(new File("/data/app/my_downloaded_lib.apk"));
ClassLoader cl = getClassLoader();
Class clazz = df.loadClass("com/my/lib/MyClass", cl);

2.cl = new DexClassLoader("/full/path/com.example.apk",
getFilesDir().getAbsolutePath(),// /data/data/foo/files
null, // native lib path, I haven't used this
MyClass.class.getClassLoader());
// This doesn't make Class.forName() work, instead I do this:
Class<?> foo = cl.loadClass("com.example.foo");
3.

PathClassLoader("/data/app/org.startsmall.myapp.apk", ClassLoader.getSystemClassLoader());


final String apkFiles = 
            "/data/app/org.startsmall.myapp.apk:" + // myself 
            // handlers defined by other developers 
            "/data/app/" + handlerClassName.substring(0, lastDotPos) + ".apk"; 
  
        dalvik.system.PathClassLoader myClassLoader = 
            new dalvik.system.PathClassLoader( 
                apkFiles, 
                ClassLoader.getSystemClassLoader()); 
  
         // ... 
  
        try { 
            Class<?> handler = 
                Class.forName(handlerClassName, true, classLoader); 
  
            // Call reflective APIs. 
  
       } catch (ClassNotFoundException e) { 
            // .....