Android 安卓span点击事件
嗯。这些是我的问题Android 安卓span点击事件,android,position,tooltip,html,clickable,Android,Position,Tooltip,Html,Clickable,嗯。这些是我的问题 我需要使用正则表达式将除字母以外的所有内容归档,然后我需要将找到的单词封装在$word标记中。 使用此str=str.replaceAll(模式“$0”);。 现在我正在过滤所有正确的元素(标点符号、数字等),但它将每个单词中的每个字母都封装在一个a标记中,而不是单词。那么如何使用正则表达式将字母分组到一个单词中呢 从(标签打开)t(关闭)(标签打开)h(关闭)(标签打开)i(关闭)(标签打开)s(关闭)(标签打开)i(关闭)(标签打开)s(关闭)(标签打开)w(关闭)(标签
public String text = "This is just a sentence to test you. 23 this is another number23!g?";
public TextView tv;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
text = explode(text);
tv = (TextView) findViewById(R.id.tv1);
tv.setLinksClickable(true);
tv.setMovementMethod(LinkMovementMethod.getInstance());
Spanned article = Html.fromHtml(text, null, null);
setHTML(article);
}
public void setHTML(Spanned html) {
SpannableString message = new SpannableString(html.toString());
Object[] spans = html.getSpans(0, html.length(), Object.class);
for (Object span : spans) {
int start = html.getSpanStart(span);
int end = html.getSpanEnd(span);
int flags = html.getSpanFlags(span);
if (span instanceof URLSpan) {
URLSpan urlSpan = (URLSpan) span;
span = new CallbackSpan(urlSpan.getURL());
}
message.setSpan(span, start, end, flags);
}
tv.setText(message);
}
public String explode(String str){
String pattern = "([a-zA-Z])";
str = str.replaceAll(pattern, "<a href=\"$0\">$0</a>");
return str;
}
private final class CallbackSpan extends ClickableSpan {
private String m_data;
private String url_main;
public CallbackSpan(String url) {
m_data = url.substring(0);
url_main = url;
}
public void onClick(View view) {
TextView item = (TextView)findViewById(R.id.tv2);
item.setText(url_main + " was clicked.");
Log.d("item", url_main);
}
}
publicstringtext=“这只是一个测试你的句子。23这是另一个数字23!g?”;
公共图文电视;
@凌驾
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
文本=分解(文本);
tv=(TextView)findviewbyd(R.id.tv1);
tv.setLinksClickable(true);
setMovementMethod(LinkMovementMethod.getInstance());
span article=Html.fromHtml(text,null,null);
setHTML(文章);
}
公共void setHTML(跨html){
SpannableString message=新的SpannableString(html.toString());
Object[]span=html.getspan(0,html.length(),Object.class);
用于(对象跨度:跨度){
int start=html.getSpanStart(span);
int end=html.getSpanEnd(span);
int flags=html.getSpanFlags(span);
if(URLSpan的span实例){
URLSpan URLSpan=(URLSpan)span;
span=newcallbackspan(urlSpan.getURL());
}
message.setSpan(范围、开始、结束、标志);
}
tv.setText(消息);
}
公共字符串分解(字符串str){
字符串模式=“([a-zA-Z])”;
str=str.replaceAll(模式“”);
返回str;
}
私有final类CallbackSpan扩展了ClickableSpan{
私有字符串m_数据;
私有字符串url_main;
公共CallbackSpan(字符串url){
m_data=url.substring(0);
url_main=url;
}
公共void onClick(视图){
TextView项=(TextView)findViewById(R.id.tv2);
item.setText(url_main+“已单击”);
Log.d(“项目”,url\u main);
}
}
}假设您想要单击文本视图?上的单个单词?。我不明白你评论中所有的字母都转换成了单词 以下内容可用于单击单个作品,并以toast的形式显示
public class MainActivity extends Activity {
TextView _tv;
String[] each;
SpannableString ss1;
Button b;
EditText et;
String s;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
b= (Button) findViewById(R.id.button1);
et = (EditText) findViewById(R.id.ed);
_tv = (TextView) findViewById( R.id.tv );
b.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
s=et.getText().toString();
_tv.setText("");
for(int i=0;i<s.length();i++)
{
each = s.split("\\s+");
}
for(int i=0;i<each.length;i++)
{
System.out.println("................"+each[i]);
ss1= new SpannableString(each[i]);
//StyleSpan boldSpan = new StyleSpan( Typeface.BOLD );
//spannable.setSpan( boldSpan, 41, 52, Spannable.SPAN_INCLUSIVE_INCLUSIVE );
ss1.setSpan(new MyClickableSpan(each[i]), 0, ss1.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
_tv.append(ss1);
_tv.append(" ");
}
_tv.setMovementMethod(LinkMovementMethod.getInstance());
}
});
}
class MyClickableSpan extends ClickableSpan{
String clicked;
public MyClickableSpan(String string) {
// TODO Auto-generated constructor stub
clicked =string;
}
//clickable span
public void onClick(View textView) {
//do something
Toast.makeText(MainActivity.this,clicked ,
Toast.LENGTH_SHORT).show();
}
@Override
public void updateDrawState(TextPaint ds) {
ds.setColor(Color.BLACK);//set text color
ds.setUnderlineText(false); // set to false to remove underline
}
}
}
公共类MainActivity扩展活动{
图文电视;
字符串[]每个;
展弦ss1;
按钮b;
编辑文本;
字符串s;
@凌驾
创建时的公共void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
b=(按钮)findViewById(R.id.button1);
et=(编辑文本)findViewById(R.id.ed);
_tv=(TextView)findviewbyd(R.id.tv);
b、 setOnClickListener(新的OnClickListener()
{
@凌驾
公共void onClick(视图v){
//TODO自动生成的方法存根
s=et.getText().toString();
_tv.setText(“”);
有关(int i=0;i最新代码,请参见
在设置新跨距之前,需要删除原点跨距。
请参见下文
编辑
通过extends LinkMovementMethod
import android.os.Handler;
import android.os.Message;
import android.text.Layout;
import android.text.Selection;
import android.text.Spannable;
import android.text.method.LinkMovementMethod;
import android.text.method.MovementMethod;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.widget.TextView;
import java.lang.ref.WeakReference;
public class LinkMovementMethodExt extends LinkMovementMethod {
public static final int LinkMovementMethod_Down = 1001;
public static final int LinkMovementMethod_Up = 2002;
private static LinkMovementMethod sInstance;
private Class mSpanClass = null;
private WeakReference<Handler> mWeakReference = null;
public static MovementMethod getInstance(Handler handler, Class spanClass) {
if (sInstance == null) {
sInstance = new LinkMovementMethodExt();
((LinkMovementMethodExt) sInstance).mWeakReference = new WeakReference<>(handler);
((LinkMovementMethodExt) sInstance).mSpanClass = spanClass;
}
return sInstance;
}
@Override
public boolean onTouchEvent(TextView widget, Spannable buffer,
MotionEvent event) {
int action = event.getAction();
if (action == MotionEvent.ACTION_UP ||
action == MotionEvent.ACTION_DOWN) {
int x = (int) event.getX();
int y = (int) event.getY();
x -= widget.getTotalPaddingLeft();
y -= widget.getTotalPaddingTop();
x += widget.getScrollX();
y += widget.getScrollY();
Layout layout = widget.getLayout();
int line = layout.getLineForVertical(y);
int off = layout.getOffsetForHorizontal(line, x);
/**
* get you interest span
*/
Object[] spans = buffer.getSpans(off, off, mSpanClass);
if (spans.length != 0) {
if (action == MotionEvent.ACTION_DOWN) {
Selection.setSelection(buffer, buffer.getSpanStart(spans[0]), buffer.getSpanEnd(spans[0]));
MessageSpan obj = new MessageSpan();
obj.setObj(spans);
obj.setView(widget);
Handler handler = mWeakReference.get();
if (handler != null) {
Message message = handler.obtainMessage();
message.obj = obj;
message.what = LinkMovementMethod_Down;
message.sendToTarget();
return true;
}
return false;
} else if (action == MotionEvent.ACTION_UP) {
Handler handler = mWeakReference.get();
if (handler != null) {
MessageSpan obj = new MessageSpan();
obj.setView(widget);
Message message = handler.obtainMessage();
message.obj = obj;
message.what = LinkMovementMethod_Up;
message.sendToTarget();
return true;
}
return false;
}
}
}
return super.onTouchEvent(widget, buffer, event);
}
public boolean canSelectArbitrarily() {
return true;
}
public boolean onKeyUp(TextView widget, Spannable buffer, int keyCode,
KeyEvent event) {
return false;
}
您可以在处理程序类中使用预期的处理程序。这可能是一种灵活的处理方式。
希望能帮助你
上面的文本视图文本是123456
- MainActivity具有color属性,您可以根据需要指定颜色值
怎么办
- 步骤1,获取当前单击范围
- 步骤2,为当前单击范围设置BackgroundColorSpan
我不能清楚地理解这个问题。你有字符串,你想点击文本视图中的文本。首先我有字符串“这是一个带有数字238 66和?PUNC BL BLA”我想把它转换成“这是一个带有数字238 66和?PUNC BL BLA”但我得到的是“这是…”那么,我如何将字母分组到您想要的单词中,使单个工作在textview中可单击?是的,但我已经用上面的代码实现了。我可以记录每个不同的单词以及每个单击项目所需的所有详细信息,但它不会转换所有字母words@TheMan68这就是你一直在寻找的吗?不完全是因为这仍然带来了妈妈kes所有元素,如数字和可点击的内容。我只对单词进行了注释。这就是为什么我使用正则表达式在单词周围插入a标记。感谢您的帮助这是一个非常好的解决方案。我可以在单击链接时进行自定义操作,但在链接上仍然具有相同的单击效果吗(我改用ClickableSpan)?我不明白。也许我会解释得更好一些:假设我有一个textView,我从strings.xml中设置了一个文本,它里面有多个链接。我希望捕获每个链接上的点击,这样我就可以自己处理接下来发生的事情,而不是打开web浏览器的意图。我该怎么做?你将把手柄放在哪里并使其超过默认行为?目前我所能看到的只是准备hanlder,但没有连接到放置它并使其工作的位置…我有edit MovementMethod getInstance()方法wh
import android.os.Handler;
import android.os.Message;
import android.text.Layout;
import android.text.Selection;
import android.text.Spannable;
import android.text.method.LinkMovementMethod;
import android.text.method.MovementMethod;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.widget.TextView;
import java.lang.ref.WeakReference;
public class LinkMovementMethodExt extends LinkMovementMethod {
public static final int LinkMovementMethod_Down = 1001;
public static final int LinkMovementMethod_Up = 2002;
private static LinkMovementMethod sInstance;
private Class mSpanClass = null;
private WeakReference<Handler> mWeakReference = null;
public static MovementMethod getInstance(Handler handler, Class spanClass) {
if (sInstance == null) {
sInstance = new LinkMovementMethodExt();
((LinkMovementMethodExt) sInstance).mWeakReference = new WeakReference<>(handler);
((LinkMovementMethodExt) sInstance).mSpanClass = spanClass;
}
return sInstance;
}
@Override
public boolean onTouchEvent(TextView widget, Spannable buffer,
MotionEvent event) {
int action = event.getAction();
if (action == MotionEvent.ACTION_UP ||
action == MotionEvent.ACTION_DOWN) {
int x = (int) event.getX();
int y = (int) event.getY();
x -= widget.getTotalPaddingLeft();
y -= widget.getTotalPaddingTop();
x += widget.getScrollX();
y += widget.getScrollY();
Layout layout = widget.getLayout();
int line = layout.getLineForVertical(y);
int off = layout.getOffsetForHorizontal(line, x);
/**
* get you interest span
*/
Object[] spans = buffer.getSpans(off, off, mSpanClass);
if (spans.length != 0) {
if (action == MotionEvent.ACTION_DOWN) {
Selection.setSelection(buffer, buffer.getSpanStart(spans[0]), buffer.getSpanEnd(spans[0]));
MessageSpan obj = new MessageSpan();
obj.setObj(spans);
obj.setView(widget);
Handler handler = mWeakReference.get();
if (handler != null) {
Message message = handler.obtainMessage();
message.obj = obj;
message.what = LinkMovementMethod_Down;
message.sendToTarget();
return true;
}
return false;
} else if (action == MotionEvent.ACTION_UP) {
Handler handler = mWeakReference.get();
if (handler != null) {
MessageSpan obj = new MessageSpan();
obj.setView(widget);
Message message = handler.obtainMessage();
message.obj = obj;
message.what = LinkMovementMethod_Up;
message.sendToTarget();
return true;
}
return false;
}
}
}
return super.onTouchEvent(widget, buffer, event);
}
public boolean canSelectArbitrarily() {
return true;
}
public boolean onKeyUp(TextView widget, Spannable buffer, int keyCode,
KeyEvent event) {
return false;
}
Message message = Handler.obtainMessage();
message.obj = buffer.getSpans(off, off, Spanned.class);//get all spanned
message.what = 111;//which value ,it is up to you
message.sendToTarget(); //send message to you target handler
private Handler handler = new Handler() {
public void handleMessage(Message msg) {
int what = msg.what;
if (what == 100) {
Object[] spans = (Object[])msg.obj;
for (Object span : spans) {
if (span instanceof URLSpan) {
System.out.println(((URLSpan) span).getURL());
}
}
}
};
};