typedarray

最近项目中经常需要用到自定义控件，因此自定义属性也是经常要用到的，在此说明一下自定义属性的用法： 自定义属性都存在于/value/attr.xml文件中，以如下格式存在。 <resource> <declare-styleable name="自定义属性名称"> <attr name="属性名称" format="属性种类"/> ...... </declare-styleable> </resource> 对于自定义属性中的format的值及其含义如下： format属性值：reference 、color、boolean、 dimension、float、integer、string、fraction、enum、flag 1. reference：参考某一资源ID。 （1）属性定义： <declare-styleable name = "名称"> <attr name = "background" format = "reference" /> </declare-styleable> （2）属性使用： <ImageView android:layout_width = "42dip" android:layout_height = "42dip" android:background = "@drawable/图片ID" /> 2. color：颜色值。 （1）属性定义：

This answer tells me that calling the recycle() method of a TypedArray allows for it to be garbage collected. My question is why TypedArray specifically needs a method for it to be garbage collected? Why can't it just wait to be garbage collected like a regular object? This is required for caching purporse. When you call recycle it means that this object can be reused from this point. Internally TypedArray contains few arrays so in order not to allocate memory each time when TypedArray is used it is cached in Resources class as static field. You can look at TypedArray.recycle() method code: /*

I have a class like public class CountryVO { private String countryCode; private String countryName; private Drawable countryFlag; public String getCountryCode() { return countryCode; } public void setCountryCode(String countryCode) { this.countryCode = countryCode; } public String getCountryName() { return countryName; } public void setCountryName(String countryName) { this.countryName = countryName; } public Drawable getCountryFlag() { return countryFlag; } public void setCountryFlag(Drawable countryFlag) { this.countryFlag = countryFlag; } } and want to store objects of this class in an