修复动态代理里面的作业说明.

Author: tiann

classloader-hook/src/main/java/com/weishu/upf/hook_classloader/MainActivity.java

@@ -1,11 +1,12 @@
 package com.weishu.upf.hook_classloader;
 
 import java.io.File;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
 
 import android.app.Activity;
-import android.content.ComponentName;
 import android.content.Context;
-import android.content.Intent;
+import android.net.Uri;
 import android.os.Bundle;
 import android.util.Log;
 import android.view.View;
@@ -44,22 +45,52 @@ protected void onCreate(Bundle savedInstanceState) {
             @Override
             public void onClick(View v) {
                 try {
-                    Intent t = new Intent();
-                    if (HOOK_METHOD == PATCH_BASE_CLASS_LOADER) {
-                        t.setComponent(new ComponentName("com.weishu.upf.dynamic_proxy_hook.app2",
-                                "com.weishu.upf.dynamic_proxy_hook.app2.MainActivity"));
-                    } else {
-                        t.setComponent(new ComponentName("com.weishu.upf.ams_pms_hook.app",
-                                "com.weishu.upf.ams_pms_hook.app.MainActivity"));
-                    }
-                    startActivity(t);
+                    //                    Intent t = new Intent();
+                    //                    if (HOOK_METHOD == PATCH_BASE_CLASS_LOADER) {
+                    //                        t.setComponent(new ComponentName("com.weishu.upf.dynamic_proxy_hook.app2",
+                    //                                "com.weishu.upf.dynamic_proxy_hook.app2.MainActivity"));
+                    //                    } else {
+                    //                        t.setComponent(new ComponentName("com.weishu.upf.ams_pms_hook.app",
+                    //                                "com.weishu.upf.ams_pms_hook.app.MainActivity"));
+                    //                    }
+                    //                    startActivity(t);
+
+                    Uri uri = Uri.fromFile(getFileStreamPath("test.apk"));
+                    boolean ret = (Boolean) invokeMethod(Class.forName("android.provider.DocumentsContract").newInstance(), "isDocumentUri", new Class[] { Context.class, Uri.class },
+                            new Object[] { getApplicationContext(), uri });
+                    Log.d(TAG, "ret" + ret);
                 } catch (Throwable e) {
                     e.printStackTrace();
                 }
             }
         });
     }
 
+    private static Method getDeclaredMethod(Object object, String name, Class<?>[] types) {
+        for (Class<?> superClass = object.getClass(); superClass != Object.class; superClass.getSuperclass()) {
+            try {
+                return superClass.getDeclaredMethod(name, types);
+            } catch (NoSuchMethodException e) {
+
+            }
+        }
+        return null;
+    }
+
+    private static Object invokeMethod(Object obj, String methodName, Class<?>[] argTypes, Object[] args) throws NoSuchMethodException, InvocationTargetException, IllegalAccessException {
+        Method method = getDeclaredMethod(obj, methodName, argTypes);
+        if (method == null) {
+            throw new IllegalAccessException("could not found method:" + methodName);
+        }
+        method.setAccessible(true);
+        try {
+            return method.invoke(obj, args);
+        } catch (IllegalAccessException e) {
+
+        }
+        return null;
+    }
+
     @Override
     protected void attachBaseContext(Context newBase) {
         super.attachBaseContext(newBase);