pq36pyhjl
/
miNote2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

java/net/micode/notes/ui/NoteEditText.java

Browse Source
duan
dxj 2 months ago
parent 5efbfb2bb0
commit 3c652b9d11
1 changed files with 62 additions and 58 deletions
Show Stats Download Patch File Download Diff File

112
java/net/micode/notes/ui/NoteEditText.java
Unescape View File

@ -1,17 +1,6 @@
/*
* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* 版权声明： MiCode 开源社区 版权所有
* 本文件遵循 Apache License, Version 2.0 许可协议
*/
package net.micode.notes.ui;
@ -37,15 +26,17 @@ import net.micode.notes.R;
import java.util.HashMap;
import java.util.Map;
// 定义 NoteEditText 类，继承自 EditText，用于笔记编辑文本框
public class NoteEditText extends EditText {
private static final String TAG = "NoteEditText";
private int mIndex;
private int mSelectionStartBeforeDelete;
private static final String TAG = "NoteEditText"; // 日志标签
private int mIndex; // 当前编辑文本的索引
private int mSelectionStartBeforeDelete; // 删除前的光标起始位置
private static final String SCHEME_TEL = "tel:" ;
private static final String SCHEME_HTTP = "http:" ;
private static final String SCHEME_EMAIL = "mailto:" ;
private static final String SCHEME_TEL = "tel:"; // 电话 URI scheme
private static final String SCHEME_HTTP = "http:"; // HTTP URI scheme
private static final String SCHEME_EMAIL = "mailto:"; // 邮件 URI scheme
// 定义 URI scheme 和对应操作资源 ID 的映射关系
private static final Map<String, Integer> sSchemaActionResMap = new HashMap<String, Integer>();
static {
sSchemaActionResMap.put(SCHEME_TEL, R.string.note_link_tel);
@ -54,56 +45,59 @@ public class NoteEditText extends EditText {
}
/**
* Call by the {@link NoteEditActivity} to delete or add edit text
* 由 NoteEditActivity 调用，用于删除或添加编辑文本
*/
public interface OnTextViewChangeListener {
/**
* Delete current edit text when {@link KeyEvent#KEYCODE_DEL} happens
* and the text is null
* 当按下删除键且文本为空时，删除当前编辑文本
*/
void onEditTextDelete(int index, String text);
/**
* Add edit text after current edit text when {@link KeyEvent#KEYCODE_ENTER}
* happen
* 当按下回车键时，添加新的编辑文本
*/
void onEditTextEnter(int index, String text);
/**
* Hide or show item option when text change
* 当文本变化时，隐藏或显示选项菜单项
*/
void onTextChange(int index, boolean hasText);
}
private OnTextViewChangeListener mOnTextViewChangeListener;
private OnTextViewChangeListener mOnTextViewChangeListener; // 编辑文本变化监听器
// 构造函数
public NoteEditText(Context context) {
super(context, null);
mIndex = 0;
mIndex = 0; // 默认索引为 0
}
// 设置编辑文本的索引
public void setIndex(int index) {
mIndex = index;
}
// 设置编辑文本变化监听器
public void setOnTextViewChangeListener(OnTextViewChangeListener listener) {
mOnTextViewChangeListener = listener;
}
// 构造函数
public NoteEditText(Context context, AttributeSet attrs) {
super(context, attrs, android.R.attr.editTextStyle);
}
// 构造函数
public NoteEditText(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
// TODO Auto-generated constructor stub
}
// 处理触摸事件，用于设置文本选择
@Override
public boolean onTouchEvent(MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
// 计算触摸位置相对于文本的偏移量
int x = (int) event.getX();
int y = (int) event.getY();
x -= getTotalPaddingLeft();
@ -112,75 +106,84 @@ public class NoteEditText extends EditText {
y += getScrollY();
Layout layout = getLayout();
int line = layout.getLineForVertical(y);
int off = layout.getOffsetForHorizontal(line, x);
Selection.setSelection(getText(), off);
int line = layout.getLineForVertical(y); // 获取垂直位置对应的行号
int off = layout.getOffsetForHorizontal(line, x); // 获取水平位置对应的偏移量
Selection.setSelection(getText(), off); // 设置文本选择
break;
}
return super.onTouchEvent(event);
return super.onTouchEvent(event); // 调用父类的触摸事件处理方法
}
// 处理键盘按下事件
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
switch (keyCode) {
case KeyEvent.KEYCODE_ENTER:
// 如果设置了编辑文本变化监听器，则不允许处理回车键事件
if (mOnTextViewChangeListener != null) {
return false;
}
break;
case KeyEvent.KEYCODE_DEL:
mSelectionStartBeforeDelete = getSelectionStart();
mSelectionStartBeforeDelete = getSelectionStart(); // 保存删除前的光标起始位置
break;
default:
break;
}
return super.onKeyDown(keyCode, event);
return super.onKeyDown(keyCode, event); // 调用父类的键盘按下事件处理方法
}
// 处理键盘弹起事件
@Override
public boolean onKeyUp(int keyCode, KeyEvent event) {
switch (keyCode) {
case KeyEvent.KEYCODE_DEL:
// 如果设置了编辑文本变化监听器，则处理删除事件
if (mOnTextViewChangeListener != null) {
if (0 == mSelectionStartBeforeDelete && mIndex != 0) {
mOnTextViewChangeListener.onEditTextDelete(mIndex, getText().toString());
if (0 == mSelectionStartBeforeDelete && mIndex != 0) { // 如果光标在起始位置且不是第一个编辑文本
mOnTextViewChangeListener.onEditTextDelete(mIndex, getText().toString()); // 删除当前编辑文本
return true;
}
} else {
Log.d(TAG, "OnTextViewChangeListener was not seted");
Log.d(TAG, "未设置编辑文本变化监听器");
}
break;
case KeyEvent.KEYCODE_ENTER:
// 如果设置了编辑文本变化监听器，则处理回车键事件
if (mOnTextViewChangeListener != null) {
int selectionStart = getSelectionStart();
String text = getText().subSequence(selectionStart, length()).toString();
setText(getText().subSequence(0, selectionStart));
mOnTextViewChangeListener.onEditTextEnter(mIndex + 1, text);
int selectionStart = getSelectionStart(); // 获取光标起始位置
String text = getText().subSequence(selectionStart, length()).toString(); // 获取当前选择的文本
setText(getText().subSequence(0, selectionStart)); // 设置文本为选择位置之前的内容
mOnTextViewChangeListener.onEditTextEnter(mIndex + 1, text); // 添加新的编辑文本
} else {
Log.d(TAG, "OnTextViewChangeListener was not seted");
Log.d(TAG, "未设置编辑文本变化监听器");
}
break;
default:
break;
}
return super.onKeyUp(keyCode, event);
return super.onKeyUp(keyCode, event); // 调用父类的键盘弹起事件处理方法
}
// 处理焦点变化事件
@Override
protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) {
// 如果设置了编辑文本变化监听器，则通知文本变化
if (mOnTextViewChangeListener != null) {
if (!focused && TextUtils.isEmpty(getText())) {
mOnTextViewChangeListener.onTextChange(mIndex, false);
if (!focused && TextUtils.isEmpty(getText())) { // 如果失去焦点且文本为空
mOnTextViewChangeListener.onTextChange(mIndex, false); // 通知文本为空
} else {
mOnTextViewChangeListener.onTextChange(mIndex, true);
mOnTextViewChangeListener.onTextChange(mIndex, true); // 通知文本不为空
}
}
super.onFocusChanged(focused, direction, previouslyFocusedRect);
super.onFocusChanged(focused, direction, previouslyFocusedRect); // 调用父类的焦点变化事件处理方法
}
// 创建上下文菜单
@Override
protected void onCreateContextMenu(ContextMenu menu) {
// 如果文本是 Spanned 类型，则处理 URLSpan
if (getText() instanceof Spanned) {
int selStart = getSelectionStart();
int selEnd = getSelectionEnd();
@ -188,9 +191,10 @@ public class NoteEditText extends EditText {
int min = Math.min(selStart, selEnd);
int max = Math.max(selStart, selEnd);
final URLSpan[] urls = ((Spanned) getText()).getSpans(min, max, URLSpan.class);
if (urls.length == 1) {
final URLSpan[] urls = ((Spanned) getText()).getSpans(min, max, URLSpan.class); // 获取选中文本中的 URLSpan
if (urls.length == 1) { // 如果只有一个 URLSpan
int defaultResId = 0;
// 遍历 URI scheme 和操作资源 ID 的映射关系，找到对应的资源 ID
for (String schema : sSchemaActionResMap.keySet()) {
if (urls[0].getURL().indexOf(schema) >= 0) {
defaultResId = sSchemaActionResMap.get(schema);
@ -198,20 +202,20 @@ public class NoteEditText extends EditText {
}
}
if (defaultResId == 0) {
if (defaultResId == 0) { // 如果未找到对应的资源 ID，则使用默认资源 ID
defaultResId = R.string.note_link_other;
}
// 添加菜单项并设置点击监听器
menu.add(0, 0, 0, defaultResId).setOnMenuItemClickListener(
new OnMenuItemClickListener() {
public boolean onMenuItemClick(MenuItem item) {
// goto a new intent
urls[0].onClick(NoteEditText.this);
urls[0].onClick(NoteEditText.this); // 跳转到对应链接
return true;
}
});
}
}
super.onCreateContextMenu(menu);
super.onCreateContextMenu(menu); // 调用父类的上下文菜单创建方法
}
}
Write Preview
Loading…
Cancel
Save