API-TypedArray

TypedArray | Android Developers
https://developer.android.google.cn/reference/android/content/res/TypedArray.html

简介：Container for an array of values that were retrieved with obtainStyledAttributes(AttributeSet, int[], int, int) or obtainAttributes(AttributeSet, int[]). Be sure to call recycle() when done with them. The indices used to retrieve values from this structure correspond to the positions of the attributes given to obtainStyledAttributes.

翻译过来就是:

• 一个用来检索属性值的容器;
• 使用完之后，必须recycle();
• index下标用来检索属性，相当于属性在obtainStyledAttributes（获取样式属性）中的position.

再来看方法：

返回值	方法名
boolean	getBoolean(int index, boolean defValue)
int	getColor(int index, int defValue)
float	getDimension(int index, float defValue)
Drawable	getDrawable(int index)
float	getFloat(int index, float defValue)
int	getInt(int index, int defValue)
int	getInteger(int index, int defValue)
String	getString(int index)
CharSequence	getText(int index)

其他方法：

返回值	方法名	解释
ColorStateList	getColorStateList(int index)
int	getDimensionPixelOffset(int index, int defValue)
int	getDimensionPixelSize(int index, int defValue)
float	getFraction(int index, int base, int pbase, float defValue)
int	getIndex(int at)
int	getIndexCount()
int	getLayoutDimension(int index, int defValue)
int	getLayoutDimension(int index, String name)
String	getNonResourceString(int index)
String	getPositionDescription()
int	getResourceId(int index, int defValue)
Resources	getResources()
CharSequence[] g	etTextArray(int index)
boolean	getValue(int index, TypedValue outValue)
boolean	hasValue(int index)
int	length()
TypedValue	peekValue(int index)
void	recycle()