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问题描述
我创建了一个天气小部件.我将其配置存储在SharedPreferences中.窗口小部件由服务更新.我将天气信息与阵列中的预测一起保留在一起.在手机休息后，我发现阵列值消失，也许系统暂停?服务.有没有办法将数组存储在SharePreferences中，所以它更加粘.
推荐答案
旦上来，可以从一个可以存储在SharedPreference中的字符串中序列化/反序列化对象的方法(如果它是一个简单的数字数组，例如，只需快速分割/加入逗号可能会这样做;基本 json serialization /deserialization可能适用于稍微复杂的数据)，或使用标准 java serialization 将您的对象变成一个bytestream和将数据保存到文件那个你可以在需要时阅读.但是，如果您真的使用了很多结构化数据，请认真考虑使用Android对SQLite的卓越内置支持，虽然这是一点工作.
问题描述
I created a weather widget. I store its configuration in SharedPreferences. The widget is updated by a service. I keep the weather information together with forecasts in an array. After the phone is off for the night i find that the array values are gone,maybe the system suspended? the service. Is there a way to store the array in SharePreferences so it is more sticky.
推荐答案
Sure - either come up with a way to serialize/deserialize your object from a String that you can store in a SharedPreference (if it's a simple array of numbers, for instance, just making a quick split/join on commas might do it; basic JSON serialization/deserialization might work for slightly more complex data), or use standard Java serialization to turn your object into a bytestream and save the data to a File that you can read when needed. If you're really working with a lot of structured data, though, seriously consider using Android's excellent built-in support for SQLite, although that's a little more work.
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