Java反射之反射权限和静态属性的赋值

 fieldName.setAccessible(true);

 itemListField.set(null, arrayList);

// 获取类
Class mediaItemClazz = Class.forName("io.rong.imkit.plugin.image.PictureSelectorActivity$MediaItem");
// 获取属性
Field uriField = mediaItemClazz.getDeclaredField("uri");
// 设置访问权限
uriField.setAccessible(true);
Field mediaTypeField = mediaItemClazz.getDeclaredField("mediaType");
mediaTypeField.setAccessible(true);
// 实例化对象
Object item = mediaItemClazz.newInstance();
// 设置属性
uriField.set(item, this.mTakePictureUri.getPath());
mediaTypeField.set(item, 1);

Class holderClazz = Class.forName("io.rong.imkit.plugin.image.PictureSelectorActivity$PicItemHolder");
// 获取静态属性
Field itemListField = holderClazz.getDeclaredField("itemList");
itemListField.setAccessible(true);
Field itemSelectedListField = holderClazz.getDeclaredField("itemSelectedList");
itemSelectedListField.setAccessible(true);
ArrayList arrayList = new ArrayList();
arrayList.add(item);
// 给静态属性赋值
itemListField.set(null, arrayList);
itemSelectedListField.set(null, null);