spannable | 易学教程

Android EditText: how to apply spans when composing?

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问题 How can I apply spans on EditText text when the user is composing? For example the user has activated "bold" when composing, so every character input since then should be bold . I thought about adding text change listener to the EditText and update the text as the user composes, but I wanna know if there's a better way of doing this. 回答1: The question was already answered in the comments, but to make it more permanent I will add a fuller answer. In order to set a span (like Bold) wherever the

is Spannable text customizable? Android

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String aux = getInserzionista(offerta.getIdInserzionista()); sotto_titolo.setText("Offerta dal " + aux); int inizio = 12; int fine = 11+aux.length(); sotto_titolo.setMovementMethod(LinkMovementMethod.getInstance()); sotto_titolo.setText(sotto_titolo.getText().toString(),BufferType.SPANNABLE); Spannable mySpannable = (Spannable) sotto_titolo.getText(); ClickableSpan myClickableSpan = new ClickableSpan() { @Override public void onClick(View widget) { } }; //if i put this, not work mySpannable.setSpan(new ForegroundColorSpan(Color.RED), inizio, fine, 0); mySpannable.setSpan(myClickableSpan,

setSpan() on EditText deletes other spans

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I have a bold button that, when pressed, is supposed to change the typeface of the selected text in the EditText field . This all works perfectly, with one exception. If there is bold typeface elsewhere in the EditText , and I try to create a new bold section, the original section is changed back to normal . For example, this string: Bold not bold more bold. If I highlight any of the normal words and press the button, they do become bold , but the first word becomes normal . I can't see any reason for this in my code. Thanks! final StyleSpan normalStyle = new StyleSpan(Typeface.NORMAL); final

Adding ImageSpan after Html.fromHtml();

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问题 I have an JSON String which contains HTML Tags and image like this one: <center>denn.. :) ich habe immer versucht ein perfektionist zu sein ohne das es mir klar war. I tried to replace the smileys with img src= "" tags but its a pain to load them with an ImageGetter.I was successful with Picasso and ImageSpans. My Question is, it is

How come my spannable isn't shown?

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Background I'm trying to use a simple SpannableString on a TextView , based on an UnderDotSpan class I've found ( here ). The original UnderDotSpan just puts a dot of a specific size and color below the text itself (not overlapping). What I'm trying is to first use it normally, and then use a customized drawable instead of a dot. The problem As opposed to a normal span usage, this one just doesn't show anything. Not even the text. Here's how it's done for a normal span: val text = "1" val timeSpannable = SpannableString(text) timeSpannable.setSpan(ForegroundColorSpan(0xff00ff00.toInt()), 0,

How to set font style of selected text using custom typeface through spannable method

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I want to set style to selected text from EditText using custom typeface . I am getting below error at compile time. The constructor StyleSpan(Typeface) is undefined . Below code I am applying. int start=editbox.getSelectionStart(); int end=editbox.getSelectionEnd(); Spannable span=(Spannable)editbox.getText(); StyleSpan f = new StyleSpan( Typeface.createFromAsset(getAssets(), "fonts/genbkbasr.ttf")); span.setSpan(f, start,end, 0); Thanks. I wrote a class to work around this limitation. It appeared to work in limited testing, but I haven't yet written the application that I needed it for. Note

How to get rid of the underline in a Spannable String with a Clickable Object?

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问题 I have a Spannable Object with a Clickable Object set to it. When the Spannable String is displayed in the TextView it has blue text and a blue underline (indicating to the user that this Text is Clickable). My problem is how can I prevent appearing the blue underline in TextView ? 回答1: Use the below code and try String mystring =" Hello"; SpannableString ss= new SpannableString(mystring); ss.setSpan(new MyClickableSpan(mystring), 0, ss.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); class

Combining Spannable with String.format()

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问题 Suppose you have the following string: String s = "The cold hand reaches for the %1$s %2$s Ellesse's"; String old = "old"; String tan = "tan"; String formatted = String.format(s,old,tan); //"The cold hand reaches for the old tan Ellesse's" Suppose you want to end up with this string, but also have a particular Span set for any word replaced by String.format . For instance, we also want to do the following: Spannable spannable = new SpannableString(formatted); spannable.setSpan(new

What is the difference between SPAN_POINT_MARK and SPAN_MARK_POINT?

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问题 I have been reading up on the docs for the Spanned/Spannable class for a project that I am working on. I have been puzzled by the definition and usage of the spans that contain MARK and POINT . A MARK seems to be defined in the Doc as "attached" to a character's location while a POINT is defined as being "glued" to a character. Thus a MARK won't move when text is changed and a POINT will move with the character it was "glued" to when text is changed. These definitions seem to show that MARK

ImageSpan on EditText (smileys). With SwiftKey Keyboard doesnt work

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问题 I am doing a simple chat application and i want to show smileys on edittext while writing the message. I have this to identify wich characters will be subsituted by an Image throught an ImageSpan (this is called only when an smileys character is inserted on EditText): for (index = start; index < start+num_chars; index++) { if (index + 1 > editable.length()) continue; if(emoticons.containsKey(editable.subSequence(index, index + 1).toString())){ int length=1; Drawable drawable = context