ui-笔记编辑文本框注释

pull/3/head
weichunyi 2 months ago
parent 2d18da5c3d
commit 35994ace47

@ -37,15 +37,22 @@ import net.micode.notes.R;
import java.util.HashMap;
import java.util.Map;
/**
*
* EditText
*
*/
public class NoteEditText extends EditText {
private static final String TAG = "NoteEditText";
private int mIndex;
private int mSelectionStartBeforeDelete;
private int mIndex; // 当前编辑框在列表中的索引位置
private int mSelectionStartBeforeDelete; // 记录删除操作前的光标位置
// 支持的链接协议
private static final String SCHEME_TEL = "tel:" ;
private static final String SCHEME_HTTP = "http:" ;
private static final String SCHEME_EMAIL = "mailto:" ;
// 链接协议与菜单项文本资源的映射
private static final Map<String, Integer> sSchemaActionResMap = new HashMap<String, Integer>();
static {
sSchemaActionResMap.put(SCHEME_TEL, R.string.note_link_tel);
@ -54,38 +61,43 @@ public class NoteEditText extends EditText {
}
/**
* Call by the {@link NoteEditActivity} to delete or add edit text
*
* NoteEditActivity
*/
public interface OnTextViewChangeListener {
/**
* Delete current edit text when {@link KeyEvent#KEYCODE_DEL} happens
* and the text is null
*
*/
void onEditTextDelete(int index, String text);
/**
* Add edit text after current edit text when {@link KeyEvent#KEYCODE_ENTER}
* happen
*
*/
void onEditTextEnter(int index, String text);
/**
* Hide or show item option when text change
*
*/
void onTextChange(int index, boolean hasText);
}
private OnTextViewChangeListener mOnTextViewChangeListener;
private OnTextViewChangeListener mOnTextViewChangeListener; // 文本变化监听器
public NoteEditText(Context context) {
super(context, null);
mIndex = 0;
}
/**
*
*/
public void setIndex(int index) {
mIndex = index;
}
/**
*
*/
public void setOnTextViewChangeListener(OnTextViewChangeListener listener) {
mOnTextViewChangeListener = listener;
}
@ -96,14 +108,13 @@ public class NoteEditText extends EditText {
public NoteEditText(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
// TODO Auto-generated constructor stub
}
@Override
public boolean onTouchEvent(MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
// 计算触摸位置对应的文本偏移量并设置光标位置
int x = (int) event.getX();
int y = (int) event.getY();
x -= getTotalPaddingLeft();
@ -125,11 +136,13 @@ public class NoteEditText extends EditText {
public boolean onKeyDown(int keyCode, KeyEvent event) {
switch (keyCode) {
case KeyEvent.KEYCODE_ENTER:
// 回车键事件处理,由监听器处理
if (mOnTextViewChangeListener != null) {
return false;
}
break;
case KeyEvent.KEYCODE_DEL:
// 记录删除操作前的光标位置
mSelectionStartBeforeDelete = getSelectionStart();
break;
default:
@ -142,7 +155,9 @@ public class NoteEditText extends EditText {
public boolean onKeyUp(int keyCode, KeyEvent event) {
switch(keyCode) {
case KeyEvent.KEYCODE_DEL:
// 删除键事件处理
if (mOnTextViewChangeListener != null) {
// 如果光标在文本开头且不是第一个编辑框,则删除当前编辑框
if (0 == mSelectionStartBeforeDelete && mIndex != 0) {
mOnTextViewChangeListener.onEditTextDelete(mIndex, getText().toString());
return true;
@ -152,7 +167,10 @@ public class NoteEditText extends EditText {
}
break;
case KeyEvent.KEYCODE_ENTER:
// 回车键事件处理
if (mOnTextViewChangeListener != null) {
// 获取光标位置之后的文本,将当前文本截断到光标位置
// 并在后面添加新的编辑框
int selectionStart = getSelectionStart();
String text = getText().subSequence(selectionStart, length()).toString();
setText(getText().subSequence(0, selectionStart));
@ -169,6 +187,7 @@ public class NoteEditText extends EditText {
@Override
protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) {
// 焦点变化时通知监听器文本状态
if (mOnTextViewChangeListener != null) {
if (!focused && TextUtils.isEmpty(getText())) {
mOnTextViewChangeListener.onTextChange(mIndex, false);
@ -181,15 +200,19 @@ public class NoteEditText extends EditText {
@Override
protected void onCreateContextMenu(ContextMenu menu) {
// 处理上下文菜单(长按菜单)
if (getText() instanceof Spanned) {
// 获取选中的文本范围
int selStart = getSelectionStart();
int selEnd = getSelectionEnd();
int min = Math.min(selStart, selEnd);
int max = Math.max(selStart, selEnd);
// 检查选中的文本中是否包含URLSpan
final URLSpan[] urls = ((Spanned) getText()).getSpans(min, max, URLSpan.class);
if (urls.length == 1) {
// 根据URL协议设置菜单项文本
int defaultResId = 0;
for(String schema: sSchemaActionResMap.keySet()) {
if(urls[0].getURL().indexOf(schema) >= 0) {
@ -202,10 +225,11 @@ public class NoteEditText extends EditText {
defaultResId = R.string.note_link_other;
}
// 添加菜单项并设置点击事件
menu.add(0, 0, 0, defaultResId).setOnMenuItemClickListener(
new OnMenuItemClickListener() {
public boolean onMenuItemClick(MenuItem item) {
// goto a new intent
// 打开链接
urls[0].onClick(NoteEditText.this);
return true;
}
@ -214,4 +238,4 @@ public class NoteEditText extends EditText {
}
super.onCreateContextMenu(menu);
}
}
}
Loading…
Cancel
Save