简单记一下，以前没怎么用过。
EditText View的getText直接返回的就是 Editable
而 TextView则是getEditableText才返回 Editable。
还有就是注释所说,
* Replaces the specified range (<code>st…en</code>) of text in this
* Editable with a copy of the slice <code>start…end</code> from
* <code>source</code>. The destination slice may be empty, in which case
* the operation is an insertion, or the source slice may be empty,
* in which case the operation is a deletion.
replace 在 没有选中内容时 表现为 insert操作,
replace/insert 的String 参数 不能为空.
android.text
接口 Editable
所有超级接口：
-
Appendable, CharSequence, GetChars, Spannable, Spanned
所有已知实现类：
-
SpannableStringBuilder
public interface Editable
extends CharSequence, GetChars, Spannable, Appendable
This is the interface for text whose content and markup can be changed (as opposed to immutable text like Strings). If you make a DynamicLayout of an Editable, the layout will be reflowed as the text is changed.
| 嵌套类摘要 |
|---|
static class | Editable.Factory
Factory used by TextView to create new Editables. |
| 从接口 android.text.Spanned 继承的字段 |
|---|
SPAN_COMPOSING, SPAN_EXCLUSIVE_EXCLUSIVE, SPAN_EXCLUSIVE_INCLUSIVE, SPAN_INCLUSIVE_EXCLUSIVE, SPAN_INCLUSIVE_INCLUSIVE, SPAN_INTERMEDIATE, SPAN_MARK_MARK, SPAN_MARK_POINT, SPAN_PARAGRAPH, SPAN_POINT_MARK, SPAN_POINT_MARK_MASK, SPAN_POINT_POINT, SPAN_PRIORITY, SPAN_PRIORITY_SHIFT, SPAN_USER, SPAN_USER_SHIFT |
| 方法摘要 |
|---|
Editable | append(char text)
Convenience for append(String.valueOf(text)). |
Editable | append(CharSequence text)
Convenience for replace(length(), length(), text, 0, text.length()) |
Editable | append(CharSequence text, int start, int end)
Convenience for replace(length(), length(), text, start, end) |
void | clear()
Convenience for replace(0, length(), "", 0, 0) |
void | clearSpans()
Removes all spans from the Editable, as if by calling Spannable.removeSpan(java.lang.Object) on each of them. |
Editable | delete(int st, int en)
Convenience for replace(st, en, "", 0, 0) |
InputFilter[] | getFilters()
Returns the array of input filters that are currently applied to changes to this Editable. |
Editable | insert(int where, CharSequence text)
Convenience for replace(where, where, text, 0, text.length()); |
Editable | insert(int where, CharSequence text, int start, int end)
Convenience for replace(where, where, text, start, end) |
Editable | replace(int st, int en, CharSequence text)
Convenience for replace(st, en, text, 0, text.length()) |
Editable | replace(int st, int en, CharSequence source, int start, int end)
Replaces the specified range (st…en) of text in this Editable with a copy of the slice start…end from source. |
void | setFilters(InputFilter[] filters)
Sets the series of filters that will be called in succession whenever the text of this Editable is changed, each of which has the opportunity to limit or transform the text that is being inserted. |
| 从接口 android.text.GetChars 继承的方法 |
|---|
getChars |
| 从接口 android.text.Spannable 继承的方法 |
|---|
removeSpan, setSpan |
| 从接口 android.text.Spanned 继承的方法 |
|---|
getSpanEnd, getSpanFlags, getSpans, getSpanStart, nextSpanTransition |
| 从接口 java.lang.CharSequence 继承的方法 |
|---|
charAt, length, subSequence, toString |
replace
Editable replace(int st,
int en,
CharSequence source,
int start,
int end)
-
Replaces the specified range (
st…en) of text in this Editable with a copy of the slice
start…end from
source. The destination slice may be empty, in which case the operation is an insertion, or the source slice may be empty, in which case the operation is a deletion.
Before the change is committed, each filter that was set with setFilters(android.text.InputFilter[]) is given the opportunity to modify the source text.
If source is Spanned, the spans from it are preserved into the Editable. Existing spans within the Editable that entirely cover the replaced range are retained, but any that were strictly within the range that was replaced are removed. As a special case, the cursor position is preserved even when the entire range where it is located is replaced.
-
返回：
-
a reference to this object.
replace
Editable replace(int st,
int en,
CharSequence text)
-
Convenience for replace(st, en, text, 0, text.length())
-
另请参见：
-
replace(int, int, CharSequence, int, int)
insert
Editable insert(int where,
CharSequence text,
int start,
int end)
-
Convenience for replace(where, where, text, start, end)
-
另请参见：
-
replace(int, int, CharSequence, int, int)
insert
Editable insert(int where,
CharSequence text)
-
Convenience for replace(where, where, text, 0, text.length());
-
另请参见：
-
replace(int, int, CharSequence, int, int)
delete
Editable delete(int st,
int en)
-
Convenience for replace(st, en, "", 0, 0)
-
另请参见：
-
replace(int, int, CharSequence, int, int)
append
Editable append(CharSequence text)
-
Convenience for replace(length(), length(), text, 0, text.length())
-
指定者：
-
接口
Appendable 中的
append
-
参数：
-
text - the character sequence to append.
返回：
-
this
Appendable.
另请参见：
-
replace(int, int, CharSequence, int, int)
append
Editable append(CharSequence text,
int start,
int end)
-
Convenience for replace(length(), length(), text, start, end)
-
指定者：
-
接口
Appendable 中的
append
-
参数：
-
text - the character sequence to append.
-
start - the first index of the subsequence of
csq that is appended.
-
end - the last index of the subsequence of
csq that is appended.
返回：
-
this
Appendable.
另请参见：
-
replace(int, int, CharSequence, int, int)
append
Editable append(char text)
-
Convenience for append(String.valueOf(text)).
-
指定者：
-
接口
Appendable 中的
append
-
参数：
-
text - the character to append.
返回：
-
this
Appendable.
另请参见：
-
replace(int, int, CharSequence, int, int)
clear
void clear()
-
Convenience for replace(0, length(), "", 0, 0)
-
另请参见：
-
Note that this clears the text, not the spans; use {@link #clearSpans} if you need that.
clearSpans
void clearSpans()
-
Removes all spans from the Editable, as if by calling Spannable.removeSpan(java.lang.Object) on each of them.
setFilters
void setFilters(InputFilter[] filters)
-
Sets the series of filters that will be called in succession whenever the text of this Editable is changed, each of which has the opportunity to limit or transform the text that is being inserted.
getFilters
InputFilter[] getFilters()
Returns the array of input filters that are currently appliedto changes to this Editable.
本文内容由网友自发贡献，版权归原作者所有，本站不承担相应法律责任。如您发现有涉嫌抄袭侵权的内容，请联系:hwhale#tublm.com(使用前将#替换为@)
