interface KeyListener<T> |
Package: | dji.v5.common.callback |
It is used to listen the change from a key value.
void onValueChange(@Nullable T oldValue, @Nullable T newValue) |
Package: | dji.v5.common.callback |
It will be called when a key value is changed.
@Nullable T oldValue | Return a old value. Returnnull if there is no old value. |
@Nullable T newValue | Return a new value. Returnnull if there is no new value. |
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