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我从数据库中得到一个数字作为字符串。我想将此数字(例如 3 或 4)设置为评分栏。但它说评级栏只接受float变量。
float
我该怎么办?
使用Float.parseFloat,例如:
Float.parseFloat
float val = Float.parseFloat("4");
您需要将该字符串解析为 Float。您可以这样做->
float rating = Float.parseFloat(string); ratingBar.setRating(rating);