Android custom component to get local pictures and camera pictures

There are encapsulated pictures in IOS. After long pressing, the animation deletion effect appears. The effect is as follows

Android hasn't found a third-party component with this effect for a long time. Finally, it's too lazy to find it. Let's realize this effect by ourselves

After selecting a picture, you can also clip the picture

Of course, there are still many imperfections in the code. I will continue to improve this component, which has been uploaded to the open source community. Welcome to star~

Demo source code: Portal

Some problems and solutions in design

1. How to display the plus sign image at the back of GridView

First, load the plus sign image when calling the gridadapter constructor

 /**
 * 图片适配器
 * @param context 上下文
 * @param imagesum 最大可添加图片数
 */
 public GridAdapter(Context context,int imagesum) {
 this.context = context;
 this.imageSum = imagesum;
 // 加号图片
 mAddBitmap = BitmapFactory.decodeResource(context.getResources(),R.drawable.ic_add_image);
 }