TextView设置行间距和字间距

一、设置行间距

• android:lineSpacingExtra

  设置行间距，尺寸值是一个浮点数，后跟一个单位，例如“ 14.5sp”
  Extra spacing between lines of text. Must be a dimension value, which is a floating point number appended with a unit such as “14.5sp”.Available units are: px (pixels), dp (density-independent pixels), sp (scaled pixels based on preferred font size), in (inches), mm (millimeters).

• android:lineSpacingMultiplier

  设置行间距乘数。必须为浮点值，例如“ 1.2”
  Extra spacing between lines of text, as a multiplier.Must be a floating point value, such as “1.2”.

二、设置字间距

• android：letterSpacing

  设置字母间距乘数。必须为浮点值，例如“ 1.2”
  Text letter-spacing.Must be a floating point value, such as “1.2”.

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