Java Code Examples for android.text.TextUtils#getChars()

@Override
public final void drawText(@NonNull CharSequence text, int start, int end, float x, float y,
        @NonNull Paint paint) {
    if ((start | end | (end - start) | (text.length() - end)) < 0) {
        throw new IndexOutOfBoundsException();
    }
    if (text instanceof String || text instanceof SpannedString
            || text instanceof SpannableString) {
        nDrawText(mNativeCanvasWrapper, text.toString(), start, end, x, y,
                paint.mBidiFlags, paint.getNativeInstance());
    } else if (text instanceof GraphicsOperations) {
        ((GraphicsOperations) text).drawText(this, start, end, x, y,
                paint);
    } else {
        char[] buf = TemporaryBuffer.obtain(end - start);
        TextUtils.getChars(text, start, end, buf, 0);
        nDrawText(mNativeCanvasWrapper, buf, 0, end - start, x, y,
                paint.mBidiFlags, paint.getNativeInstance());
        TemporaryBuffer.recycle(buf);
    }
}
 

@Override
public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend)
{
  char[] v = new char[end - start];
  TextUtils.getChars(source, start, end, v, 0);

  Spannable emojified = EmojiProvider.getInstance(view.getContext()).emojify(new String(v), view);

  if (source instanceof Spanned && emojified != null) {
    TextUtils.copySpansFrom((Spanned) source, start, end, null, emojified, 0);
  }

  return emojified;
}
 

@Override
public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend)
{
  char[] v = new char[end - start];
  TextUtils.getChars(source, start, end, v, 0);

  Spannable emojified = EmojiProvider.getInstance(view.getContext()).emojify(new String(v), view);

  if (source instanceof Spanned && emojified != null) {
    TextUtils.copySpansFrom((Spanned) source, start, end, null, emojified, 0);
  }

  return emojified;
}
 

public void getChars(int start, int end, char[] dest, int off) {
    TextUtils.getChars(mSource, start, end, dest, off);
    int offend = end - start + off;
    int n = mOriginal.length;

    for (int i = off; i < offend; i++) {
        char c = dest[i];

        for (int j = 0; j < n; j++) {
            if (c == mOriginal[j]) {
                dest[i] = mReplacement[j];
            }
        }
    }
}
 

@Override
public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend)
{
  char[] v = new char[end - start];
  TextUtils.getChars(source, start, end, v, 0);

  Spannable emojified = EmojiProvider.getInstance(view.getContext()).emojify(new String(v), view);

  if (source instanceof Spanned && emojified != null) {
    TextUtils.copySpansFrom((Spanned) source, start, end, null, emojified, 0);
  }

  return emojified;
}
 

@Override
public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend)
{
  char[] v = new char[end - start];
  TextUtils.getChars(source, start, end, v, 0);

  Spannable emojified = EmojiProvider.getInstance(view.getContext()).emojify(new String(v), view);

  if (source instanceof Spanned && emojified != null) {
    TextUtils.copySpansFrom((Spanned) source, start, end, null, emojified, 0);
  }

  return emojified;
}
 

@Override
public final void drawTextRun(@NonNull CharSequence text, int start, int end, int contextStart,
        int contextEnd, float x, float y, boolean isRtl, @NonNull Paint paint) {

    if (text == null) {
        throw new NullPointerException("text is null");
    }
    if (paint == null) {
        throw new NullPointerException("paint is null");
    }
    if ((start | end | contextStart | contextEnd | start - contextStart | end - start
            | contextEnd - end | text.length() - contextEnd) < 0) {
        throw new IndexOutOfBoundsException();
    }

    if (text instanceof String || text instanceof SpannedString
            || text instanceof SpannableString) {
        nDrawTextRun(mNativeCanvasWrapper, text.toString(), start, end, contextStart,
                contextEnd, x, y, isRtl, paint.getNativeInstance());
    } else if (text instanceof GraphicsOperations) {
        ((GraphicsOperations) text).drawTextRun(this, start, end,
                contextStart, contextEnd, x, y, isRtl, paint);
    } else {
        int contextLen = contextEnd - contextStart;
        int len = end - start;
        char[] buf = TemporaryBuffer.obtain(contextLen);
        TextUtils.getChars(text, contextStart, contextEnd, buf, 0);
        long measuredTextPtr = 0;
        if (text instanceof PrecomputedText) {
            PrecomputedText mt = (PrecomputedText) text;
            int paraIndex = mt.findParaIndex(start);
            if (end <= mt.getParagraphEnd(paraIndex)) {
                // Only support if the target is in the same paragraph.
                measuredTextPtr = mt.getMeasuredParagraph(paraIndex).getNativePtr();
            }
        }
        nDrawTextRun(mNativeCanvasWrapper, buf, start - contextStart, len,
                0, contextLen, x, y, isRtl, paint.getNativeInstance(), measuredTextPtr);
        TemporaryBuffer.recycle(buf);
    }
}
 

public static void getTextBounds(Paint paint, CharSequence text, @IntRange(from = 0) int start, @IntRange(from = 0) int end, Rect rect) {
  char[] currentText = new char[end - start];
  TextUtils.getChars(text, start, end, currentText, 0);
  paint.getTextBounds(currentText, 0, end - start, rect);
}