Realize the effect of dynamically adding lines to notepad in Android

This article mainly introduces the contents related to the dynamic addition of lines to Notepad by Android for your reference and learning. Let's take a look at the detailed introduction below:

Look at the renderings first:

This is a question asked by someone in the group yesterday. By the way, we can record this effect here. We can customize EditText, which is not difficult to implement

See the detailed steps:

First: initialize paint. The brush must be used here

Step 2: calculate the offset in OnDraw

OK, that's easy.

All codes:

xml：

summary

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