Trait Editable

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pub trait Editable:
    CharSequence
    + JObjRef
    + JObjNew
    + PartialEq
    + Debug {
    const CLASS: &'static str = "android/text/Editable";
    const OBJECT_SIG: &'static str = "Landroid/text/Editable;";
    const DIM: u8 = 0u8;

    // Required methods
    fn replace(
        &self,
        st: i32,
        en: i32,
        source: Self::Cs,
        start: i32,
        end: i32,
    ) -> Self::E;
    fn replace_convenience(&self, st: i32, en: i32, text: Self::Cs) -> Self::E;
    fn insert(
        &self,
        where: i32,
        text: Self::Cs,
        start: i32,
        end: i32,
    ) -> Self::E;
    fn insert_convenience(&self, where: i32, text: Self::Cs) -> Self::E;
    fn delete(&self, st: i32, en: i32) -> Self::E;
    fn append_convenience(&self, text: Self::Cs) -> Self::E;
    fn append(&self, text: Self::Cs, start: i32, end: i32) -> Self::E;
    fn append_char(&self, text: char) -> Self::E;
    fn clear(&self);
    fn clear_spans(&self);
}

Expand description

这是文本的接口，其内容和标记可以更改（与字符串等不可变文本相反）。如果您创建可编辑的 DynamicLayout，则布局将随着文本的更改而重新排列。

Provided Associated Constants§

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const CLASS: &'static str = "android/text/Editable"

android/text/Editable

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const OBJECT_SIG: &'static str = "Landroid/text/Editable;"

Landroid/text/Editable;

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const DIM: u8 = 0u8

数组维度

Required Methods§

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fn replace( &self, st: i32, en: i32, source: Self::Cs, start: i32, end: i32, ) -> Self::E

用源切片 start…end 的副本替换此 Editable 中指定范围 (st…en) 的文本。目标切片可能为空，在这种情况下操作为插入；源切片可能为空，在这种情况下操作为删除。在提交更改之前，使用 setFilters 设置的每个过滤器都有机会修改源文本。如果源是 Spanned，则来自源的跨度将保留到 Editable 中。Editable 中完全覆盖替换范围的现有跨度将被保留，但严格在替换范围内的任何跨度将被删除。如果源包含带有 Spanned.SPAN_PARAGRAPH 标志的跨度，并且它不满足段落边界约束，则不会保留它。作为特殊情况，即使替换了光标所在的整个范围，光标位置也会保留。返回：对此对象的引用。

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