LayoutInflater.Factory 妙用

LayoutInflater.Factory 可以调试 布局，你把下面的代码放到

onCreate里面，然后再里面的下面的onCreateView里面加上断点，然后你就可以知道所有的view构造，所有的view的名字，不管是自定义还是系统的。

感觉挺不错的。

protected void setMenuBackGround() {
        LayoutInflater layoutInflater = getLayoutInflater();
        final LayoutInflater.Factory existingFactory = layoutInflater.getFactory();
// use introspection to allow a new Factory to be set
        try {
            Field field = LayoutInflater.class.getDeclaredField("mFactorySet");
            field.setAccessible(true);
            field.setBoolean(layoutInflater, false);
            getLayoutInflater().setFactory(new LayoutInflater.Factory() {
                @Override
                public View onCreateView(String name, final Context context, AttributeSet attrs) {
                    if (name

                            .equalsIgnoreCase("android.support.v7.internal.view.menu.ListMenuItemView")) {
                        try {
                            LayoutInflater inflater = (LayoutInflater) context   .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
                            final View view = inflater.createView(name,
                                    null, attrs);
                            new Handler().post(new Runnable() {
                                public void run() {
                                    ViewParent parent = view.getParent();
                                    ((ViewGroup) parent).setBackgroundResource(R.color.test);
//                                    view.setBackgroundResource(R.color.test);
                                }
                            });
                            return view;
                        } catch (InflateException e) {
                            e.printStackTrace();
                        } catch (ClassNotFoundException e) {
                            e.printStackTrace();
                        }
                    }
                    // do whatever you want with the null or non-null view
                    // such as expanding 'IconMenuItemView' and changing its style
                    // or anything else...
                    // and return the view
                    return null;
                }
            });
        } catch (NoSuchFieldException e) {
            // ...
        } catch (IllegalArgumentException e) {
            // ...
        } catch (IllegalAccessException e) {
            // ...
        }

    }

然后这个类也很强大，可以做很多事情，向下兼容。等等，替换东西等等。