1. There are two ways to set the strikethrough in TextView:
(Recommended) Method 1:
Set the TextView's original Flags property and strikethrough by bitwise or operator|. The TextView will be redrawn in setPaintFlags.
(() | Paint.STRIKE_THRU_TEXT_FLAG);
Method 2:
After obtaining the brush, set the properties and redraw the TextView. There is a problem with this method, which will replace the original Flags attribute of TextView, such as anti-aliasing, etc. If you look closely, you will find that in this way, the text has jagged teeth.
().setFlags(Paint.STRIKE_THRU_TEXT_FLAG); ();
2. TextView has two ways to cancel the strikethrough:
(Recommended) Method 1:
First, the Paint.STRIKE_THRU_TEXT_FLAG attribute is inverted, and then the bitwise and operator& is used to remove the delete line attribute and retain the TextView's original Flags attribute. The TextView will be redrawn in setPaintFlags.
(() & (~Paint.STRIKE_THRU_TEXT_FLAG));
Method 2:
After obtaining the brush, clear the Flags property and then redraw the TextView. There is a problem with this method, which will clear all the original Flags properties of the TextView, such as anti-aliasing, etc. If you look closely, you will find that in this way, the text has jagged teeth;
().setFlags(0); ();
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