TextView 设置属性

设置文字大小setTextSize()

API描述：
public void setTextSize (int unit, float size)

Added in API level 1
Set the default text size to a given unit and value. See TypedValue for the possible dimension units.

Related XML Attributes
android:textSize
Parameters
unit The desired dimension unit.
size The desired size in the given units.
eg.

setTextSize(TypedValue.COMPLEX_UNIT_DIP, dpSize);
setTextSize(TypedValue.COMPLEX_UNIT_PX, pxSize);
setTextSize(TypedValue.COMPLEX_UNIT_SP, spSize);