当Android编译java代码的时候,经常会遇到一些warning,有一些是自己写得不规范,可以根据建议来修改,而有一些是你觉得必要的,不能修改的,比如说某些方法未被使用的warning。
出现这种情况,你可以使用@Suppresswarnings来解决:
而@Suppresswarnings("")里面的字符串""有多种选择,以下是常见的:
name | using |
---|---|
all | to suppress all warnings (将方法块里面所有的warning都取消) |
cast | to suppress warnings relative to cast operations |
dep-ann | to suppress warnings relative to deprecated annotation (取消对已弃用的注释的警告) |
deprecation | to suppress warnings relative to deprecation( 使用了不赞成使用的类或方法时的警告) |
fallthrough | to suppress warnings relative to missing breaks in switch statements(当 Switch 程序块直接通往下一种情况而没有 Break 时的警告。) |
finally | to suppress warnings relative to finally block that don’t return(任何 finally 子句不能正常完成时的警告) |
hiding | to suppress warnings relative to locals that hide variable(取消对隐藏变量的警告) |
incomplete-switch | to suppress warnings relative to missing entries in a switch statement (enum case) (取消对switch里面缺少case条目的警告) |
null | to suppress warnings relative to null analysis(取消对null分析的警告) |
nls | to suppress warnings relative to non-nls string literals (取消对 non-nls字符串的警告) |
path | 在类路径、源文件路径等中有不存在的路径时的警告。 |
rawtypes | to suppress warnings relative to un-specific types when using generics on class params (当在类参数中使用非特定的泛型时,取消警告) |
restriction | to suppress warnings relative to usage of discouraged or forbidden references (取消使用不鼓励或禁止的引用的警告) |
serial | to suppress warnings relative to missing serialVersionUID field for a serializable class(当在可序列化的类上缺少 serialVersionUID 定义时的警告。) |
static-access | to suppress warnings relative to incorrect static access(取消不正常的静态访问的警告) |
synthetic-access | to suppress warnings relative to unoptimized access from inner classes |
unchecked | to suppress warnings relative to unchecked operations(执行了未检查的转换时的警告,例如当使用集合时没有用泛型 (Generics) 来指定集合保存的类型。) |
unqualified-field-access | to suppress warnings relative to field access unqualified |
unused | to suppress warnings relative to unused code (将未使用的方法的warning取消) |
WeakerAccess | 禁止“Access can be private”的警告 |