java 反射调用反射�Ҏ��

天宇恒星 — Fri, 18 Dec 2015 01:42:00 GMT

使用�Q?br />

(Boolean) invokeMethod(LockPatternUtils.class, mLockutils,
"savedPasswordExists", new Class[] {int.class}, new Object[] {UserHandle.myUserId()});

(Boolean) invokeMethod(LockPatternUtils.class, mLockutils, "checkPattern",
new Class[] {List.class, int.class}, new Object[] {null, UserHandle.myUserId()});

�Ҏ��实现�Q?br />

    public static Method getMethod(Class cls, String methodName, Class parameterTypes) {
        try {
            return cls.getDeclaredMethod(methodName, parameterTypes);
        } catch (NoSuchMethodException e) {
            Log.e(TAG, "getMethod() Exception: ", e);
            try {
                return cls.getMethod(methodName, parameterTypes);
            } catch (NoSuchMethodException ex) {
                Log.e(TAG, "getMethod() Exception: ", ex);
                return null;
            }
        }
    }

    public static Object invokeStaticMethod(Class cls, String methodName) {
        return invokeMethod(cls, null, methodName, null, null);
    }

    public static Object invokeStaticMethod(Class cls, String methodName, Class[] parasTypes,
            Object[] parasObjs) {
        return invokeMethod(cls, null, methodName, parasTypes, parasObjs);
    }

    public static Object invokeMethod(Class cls, Object obj, String methodName) {
        return invokeMethod(cls, obj, methodName, null, null);
    }

    public static Object invokeMethod(Class cls, Object obj, String methodName, Class[] parasTypes,
            Object[] parasObjs) {
        Method method = getMethod(cls, methodName, parasTypes);
        try {
            if (method != null) {
                method.setAccessible(true);
                return method.invoke(obj, parasObjs);
            }
        } catch (Exception e) {
            Log.e(TAG, "invokeStaticMethod() Exception: ", e);
        }
        return null;
    }

天宇恒星 2015-12-18 09:42 发表评论

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java 反射调用反射�Ҏ��