sto usando questo metodo per ridursi TextView
testo come il suo nome suggerisce:Android StackOverflow utilizzando ciclo while
public static float shrinkTextToFit(String caller, float availableWidth, TextView textView, float startingTextSize, float minimumTextSize) {
startingTextSize = textView.getTextSize() < startingTextSize ? textView.getTextSize() : startingTextSize;
Log.i("123", "=========================");
Log.i("123", caller + " called shrinkTextToFit");
CharSequence text = textView.getText();
float textSize = startingTextSize;
textView.setTextSize(startingTextSize);
while (!TextUtils.equals(text, (TextUtils.ellipsize(text, textView.getPaint(), availableWidth, TextUtils.TruncateAt.END)))) {
textSize -= 2;
Log.i("123", "textSize: " + textSize);
if ((textSize <= minimumTextSize) || (textSize <= 0)) {
break;
} else {
textView.setTextSize(textSize);
}
}
return textSize;
}
e sto avendo uno StackOverflow solo con questi dispositivi (e alcune volte doesn' t accada):
- Samsung GT-I9192
- Samsung GT-I9300
- LG-D290
versioni del sistema operativo: 4.4.2, 4,3
10 at android.widget.TextView.sendAfterTextChanged(TextView.java:8503)
11 at android.widget.TextView$ChangeWatcher.afterTextChanged(TextView.java:10633)
12 at android.text.SpannableStringBuilder.sendAfterTextChanged(SpannableStringBuilder.java:970)
13 at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:497)
14 at android.text.SpannableStringBuilder.append(SpannableStringBuilder.java:247)
15 at android.text.TextUtils.ellipsize(TextUtils.java:1185)
16 at android.text.TextUtils.ellipsize(TextUtils.java:1079)
17 at android.text.TextUtils.ellipsize(TextUtils.java:1054)
18 at app.utils.Utils.float shrinkTextToFit(float,android.widget.TextView,float,float)
Chiamo questa funzione all'interno TextWatcher
afterTextChanged()
e sì che potrebbe essere il problema, ma l'idea è quella di ridurre le dimensioni del testo, mentre il suo essere inserito.
@Override
public void afterTextChanged(Editable s) {
mEditText.removeTextChangedListener(mTextWatcher);
Utils.shrinkTextToFit("watcher", mAvailableWidth, mEditText, 50, 10);
mEditText.addTextChangedListener(mTextWatcher);
}
Esempio Logs:
Inizia a scrivere lettere (scorrere per leggere tutto il registro):
08-01 14:48:50.284 watcher called shrinkTextToFit
08-01 14:48:50.676 =========================
08-01 14:48:50.677 watcher called shrinkTextToFit
08-01 14:48:51.749 =========================
08-01 14:48:51.749 watcher called shrinkTextToFit
08-01 14:48:51.749 textSize: 48.0
08-01 14:48:51.750 textSize: 46.0
08-01 14:48:51.751 textSize: 44.0
08-01 14:48:51.752 textSize: 42.0
08-01 14:48:52.500 =========================
08-01 14:48:52.501 watcher called shrinkTextToFit
08-01 14:48:52.501 textSize: 48.0
08-01 14:48:52.501 textSize: 46.0
08-01 14:48:52.501 textSize: 44.0
08-01 14:48:52.501 textSize: 42.0
08-01 14:48:52.501 textSize: 40.0
08-01 14:48:52.503 textSize: 38.0
08-01 14:48:52.504 textSize: 36.0
08-01 14:48:53.013 =========================
08-01 14:48:53.013 watcher called shrinkTextToFit
08-01 14:48:53.013 textSize: 48.0
08-01 14:48:53.013 textSize: 46.0
08-01 14:48:53.013 textSize: 44.0
08-01 14:48:53.014 textSize: 42.0
08-01 14:48:53.015 textSize: 40.0
08-01 14:48:53.015 textSize: 38.0
08-01 14:48:53.015 textSize: 36.0
08-01 14:48:53.016 textSize: 34.0
08-01 14:48:53.017 textSize: 32.0
08-01 14:48:53.020 textSize: 30.0
08-01 14:48:59.948 =========================
08-01 14:48:59.949 watcher called shrinkTextToFit
08-01 14:48:59.949 textSize: 48.0
08-01 14:48:59.949 textSize: 46.0
08-01 14:48:59.949 textSize: 44.0
08-01 14:48:59.949 textSize: 42.0
08-01 14:48:59.950 textSize: 40.0
08-01 14:48:59.950 textSize: 38.0
08-01 14:48:59.950 textSize: 36.0
08-01 14:48:59.950 textSize: 34.0
08-01 14:48:59.951 textSize: 32.0
08-01 14:48:59.951 textSize: 30.0
08-01 14:48:59.951 textSize: 28.0
Start per cancellare le lettere:
08-01 14:48:59.953 =========================
08-01 14:48:59.953 watcher called shrinkTextToFit
08-01 14:48:59.954 textSize: 48.0
08-01 14:48:59.954 textSize: 46.0
08-01 14:48:59.954 textSize: 44.0
08-01 14:48:59.954 textSize: 42.0
08-01 14:48:59.954 textSize: 40.0
08-01 14:48:59.954 textSize: 38.0
08-01 14:48:59.954 textSize: 36.0
08-01 14:48:59.954 textSize: 34.0
08-01 14:48:59.954 textSize: 32.0
08-01 14:48:59.954 textSize: 30.0
08-01 14:49:00.116 =========================
08-01 14:49:00.116 watcher called shrinkTextToFit
08-01 14:49:00.116 textSize: 48.0
08-01 14:49:00.117 textSize: 46.0
08-01 14:49:00.117 textSize: 44.0
08-01 14:49:00.117 textSize: 42.0
08-01 14:49:00.117 textSize: 40.0
08-01 14:49:00.117 textSize: 38.0
08-01 14:49:00.117 textSize: 36.0
08-01 14:49:00.121 =========================
08-01 14:49:00.121 watcher called shrinkTextToFit
08-01 14:49:00.121 textSize: 48.0
08-01 14:49:00.121 textSize: 46.0
08-01 14:49:00.121 textSize: 44.0
08-01 14:49:00.121 textSize: 42.0
08-01 14:49:00.284 =========================
08-01 14:49:00.284 watcher called shrinkTextToFit
08-01 14:49:00.288 =========================
08-01 14:49:00.288 watcher called shrinkTextToFit
08-01 14:49:00.444 =========================
Cosa am Ho sbagliato e come posso migliorare questa soluzione per prevenire questa eccezione S?
Solo un'ipotesi, ma quando modifichi il testo nel tuo metodo, questo potrebbe portare nuovamente al tuo metodo chiamato che modifica il testo, che ancora ... –
@FlorianSchaetz all'interno 'afterTextChanged()' Sto facendo: 'removeTextChangedListener (mTextWatcher)', chiama la mia funzione, e quindi 'addTextChangedListener (mTextWatcher)'. Penso che ciò impedisca questa situazione, ma potrei sbagliarmi. – GuilhE
aggiungi il codice per quando aggiungiTextChangedListener –