Android imitation iPhone custom scroll selector

This example shares the specific code of Android imitation iPhone custom scroll selector for your reference. The specific contents are as follows

1、 Many don't say, renderings, get up first

2、 Instance source code

(1) Custom control

(2) Entity class

(3) Main interface

3、 Summary

Let's analyze it first. When sliding the finger, there is a prominent point, which is a bit like the radian of the arc. Therefore, we need to use the parabola method to calculate the size of the word. We also need to calculate the height and width of the control to draw. First, we draw the middle style and draw the words on the upper and lower sides. Of course, We also need to set a gesture monitor to monitor the user's operation when pressing, sliding and lifting. We will judge the displayed text according to the distance of the finger moving up and down, and select the one.

Source download: Android custom scroll selector

The above is the whole content of this article. I hope it will be helpful to your study, and I hope you can support programming tips.