Android custom ring loadingview effect

A circular progress bar is used in recent projects. GitHub has a similar dashedcircularprogress control, but the progress he draws is separated by setting the dotted line effect of the brush: progresspaint. Setpatheffect (New dashpatheffect (new float [] {dashwith, dashspace}, dashspace)); If there is a ring in the inner layer, there is a slight deviation between the inner layer and the outer layer during dynamic setting. Therefore, I changed one on the original basis to achieve the effect I want (you can choose to add animation or not when setting the progress):

Control implementation:

This control inherits relativelayout and does two things during OnDraw:

1. First draw the black circle at the bottom; 2. Draw the corresponding proportion of the outer green ring according to the progress value at that time

Provide an interface to call back the current progress value:

Core drawing class:

Internalcirclepainterimpo2, draw the black ring of the inner layer:

Progresspainterinp2, draw the black ring of the inner layer:

Customizable properties:

Call:

main_ activity.xml:

MainActivity:

GitHub address: https://github.com/506954774/AndroidCircularLoadingView

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