Android Context in non-activity Class – The Secret of ContextWrapper
One of most frustrating issues I had to figure out when I’ve started to develop for Android was the Context.
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Android preference multiple dependency is not out-of-the-box feature until api level 14 introduced us with SwitchPreference (extends TwoStatePreference) to implement such feature. the old CheckBoxPreference can’t do that.
If your app is designed for newer systems only, (min-api equal or higher than 14) that won’t be a problem for you – because you can use the new SwitchPreference element to get at least 2 states, but if your app designed to work with older api support, or more than 2 dependencies on one element – you need another method.
Note: you can always implement both ways! use the ‘/xml-v14‘ directory to create multiple version of your XML, better with include, one for API 14 with SwitchPreference, and one for the old API’s with the following solution.
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