【Android】数据库:数据封装-ContentValues

数据库:数据封装-ContentValues

Crazy Coding

/**
* 作用: ContentValues(数据库)数据封装
* 用法:
* val values = cvOf("name" to "...",...)
* db.insert("Book", null, values)
*/
fun cvOf(vararg pairs: Pair<String, Any?>) = ContentValues(pairs.size).apply {
for ((key, value) in pairs) {
when (value) {
is Int -> put(key, value)
is Long -> put(key, value)
is Float -> put(key, value)
is Double -> put(key, value)
is Boolean -> put(key, value)
is String -> put(key, value)
is Byte -> put(key, value)
is ByteArray -> put(key, value)
null -> putNull(key)
else -> {
val valueType = value.javaClass.canonicalName
throw IllegalArgumentException("Illegal value type $valueType for key \"$key\"")
}
}
}
}