Android Canvas的drawText()与文字居中方案详解

自定义View是绘制文本有三类方法 // 第一类 public void drawText (String text, float x, float y, Paint paint) public void drawText (String text, int start, int end, float x, float y, Paint paint) public void drawText (CharSequence text, int start, int end, float x, float y, Paint paint) public void drawText (char[] t