Example usage for android.widget TextView getScrollY

Introduction

In this page you can find the example usage for android.widget TextView getScrollY.

Prototype

public final int getScrollY() 

Source Link

Document

Return the scrolled top position of this view.

Usage

From source file:Main.java

public static int getFistLine(TextView tv) {
    // int height = tv.getHeight();
    int scrollY = tv.getScrollY();
    Layout layout = tv.getLayout();/* www. j  a va 2  s. co  m*/

    int firstVisibleLineNumber = layout.getLineForVertical(scrollY);
    // int lastVisibleLineNumber =
    // layout.getLineForVertical(scrollY+height);
    return firstVisibleLineNumber;
}

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From source file:Main.java

public static int getLastLine(TextView tv) {
    int height = tv.getHeight();
    int scrollY = tv.getScrollY();
    Layout layout = tv.getLayout();//from www.ja  v  a2s  . co m

    if (layout == null) {
        return 0;
    }
    // int firstVisibleLineNumber = layout.getLineForVertical(scrollY);
    int lastVisibleLineNumber = layout.getLineForVertical(scrollY + height);
    return lastVisibleLineNumber;
}

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From source file:Main.java

public static void setTextWithLinks(TextView textView, String htmlText) {
    setHtmlText(textView, htmlText);// w w w  . j av  a 2s .c  o  m
    textView.setOnTouchListener((v, event) -> {
        int action = event.getAction();
        if (action == MotionEvent.ACTION_UP || action == MotionEvent.ACTION_DOWN) {
            int x = (int) event.getX();
            int y = (int) event.getY();

            TextView widget = (TextView) v;
            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);

            ClickableSpan[] link = Spannable.Factory.getInstance().newSpannable(widget.getText()).getSpans(off,
                    off, ClickableSpan.class);

            if (link.length != 0) {
                if (action == MotionEvent.ACTION_UP) {
                    link[0].onClick(widget);
                }
                return true;
            }
        }
        return false;
    });
}

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From source file:Main.java

public static boolean drawDrawables(Canvas canvas, @Nonnull TextView textView) {
    final int compoundPaddingLeft = textView.getCompoundPaddingLeft();
    final int compoundPaddingTop = textView.getCompoundPaddingTop();
    final int compoundPaddingRight = textView.getCompoundPaddingRight();
    final int compoundPaddingBottom = textView.getCompoundPaddingBottom();

    final int scrollX = textView.getScrollX();
    final int scrollY = textView.getScrollY();

    final int right = textView.getRight();
    final int left = textView.getLeft();
    final int bottom = textView.getBottom();
    final int top = textView.getTop();

    final Drawable[] drawables = textView.getCompoundDrawables();
    if (drawables != null) {

        int vspace = bottom - top - compoundPaddingBottom - compoundPaddingTop;
        int hspace = right - left - compoundPaddingRight - compoundPaddingLeft;

        Drawable topDr = drawables[1];//from   w  w  w . j  av a2  s . com
        // IMPORTANT: The coordinates computed are also used in invalidateDrawable()
        // Make sure to update invalidateDrawable() when changing this code.
        if (topDr != null) {
            canvas.save();
            canvas.translate(scrollX + compoundPaddingLeft + (hspace - topDr.getBounds().width()) / 2,
                    scrollY + textView.getPaddingTop() + vspace / 2);
            topDr.draw(canvas);
            canvas.restore();
            return true;
        }
    }

    return false;
}

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From source file:io.github.hidroh.materialistic.AppUtils.java

public static void setTextWithLinks(TextView textView, CharSequence html) {
    textView.setText(html);//  w w  w.j  a v  a  2  s .  c  o m
    // TODO https://code.google.com/p/android/issues/detail?id=191430
    //noinspection Convert2Lambda
    textView.setOnTouchListener(new View.OnTouchListener() {
        @SuppressLint("ClickableViewAccessibility")
        @Override
        public boolean onTouch(View v, 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();

                TextView widget = (TextView) v;
                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);

                ClickableSpan[] link = Spannable.Factory.getInstance().newSpannable(widget.getText())
                        .getSpans(off, off, ClickableSpan.class);

                if (link.length != 0) {
                    if (action == MotionEvent.ACTION_UP) {
                        link[0].onClick(widget);
                    }
                    return true;
                }
            }
            return false;
        }
    });
}

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From source file:im.zico.fancy.common.widget.HackyMovementMethod.java

@Override
public boolean onTouchEvent(TextView widget, Spannable buffer, MotionEvent event) {
    if (mGray == null) {
        mGray = new BackgroundColorSpan(
                ContextCompat.getColor(widget.getContext(), R.color.alpha_spannable_pressed));
    }//from w w w.  java  2s.  co  m

    mIsLinkHit = false;

    int action = event.getAction();

    if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_UP) {
        int x = (int) event.getX();
        int y = (int) event.getY();
        x -= widget.getTotalPaddingLeft();
        y -= widget.getTotalPaddingTop();
        x += widget.getScrollX();
        y += widget.getScrollY();

        int line = widget.getLayout().getLineForVertical(y);
        int offset = widget.getLayout().getOffsetForHorizontal(line, x);

        ClickableSpan[] spans = buffer.getSpans(offset, offset, ClickableSpan.class);

        if (spans.length != 0) {
            int start = buffer.getSpanStart(spans[0]);
            int end = buffer.getSpanEnd(spans[0]);
            mIsLinkHit = true;
            if (action == MotionEvent.ACTION_DOWN) {
                buffer.setSpan(mGray, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
            } else if (action == MotionEvent.ACTION_UP) {
                spans[0].onClick(widget);
                buffer.removeSpan(mGray);
            }
            return true;
        }
    } else {
        buffer.removeSpan(mGray);
    }

    return Touch.onTouchEvent(widget, buffer, event);
}

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From source file:com.juick.android.MessageMenu.java

private int getLineAtCoordinate(TextView textView2, float y) {
    y -= textView2.getTotalPaddingTop();
    // Clamp the position to inside of the view.
    y = Math.max(0.0f, y);//from  w w w.  j a  va2s.co  m
    y = Math.min(textView2.getHeight() - textView2.getTotalPaddingBottom() - 1, y);
    y += textView2.getScrollY();
    return textView2.getLayout().getLineForVertical((int) y);
}

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From source file:org.openintents.notepad.NoteEditor.java

@Override
protected void onResume() {
    super.onResume();
    if (DEBUG) {//from  w  w w .  jav  a 2  s  .  co  m
        Log.d(TAG, "onResume");
    }

    if (DEBUG) {
        Log.d(TAG, "mDecrypted: " + mDecryptedText);
    }

    // Set auto-link on or off, based on the current setting.
    int autoLink = PreferenceActivity.getAutoLinkFromPreference(this);

    mText.setAutoLinkMask(autoLink);

    mEncrypted = 0;

    if (mState == STATE_EDIT || (mState == STATE_INSERT) || mState == STATE_EDIT_EXTERNAL_NOTE) {
        getNoteFromContentProvider();
    } else if (mState == STATE_EDIT_NOTE_FROM_SDCARD) {
        getNoteFromFile();
    }

    if (mEncrypted == 0 || mDecryptedText != null) {
        applyInsertText();
    }

    // Make sure that we don't use the link movement method.
    // Instead, we need a blend between the arrow key movement (for regular
    // navigation) and
    // the link movement (so the user can click on links).
    mText.setMovementMethod(new ArrowKeyMovementMethod() {
        public boolean onTouchEvent(TextView widget, Spannable buffer, MotionEvent event) {
            // This block is copied and pasted from LinkMovementMethod's
            // onTouchEvent (without the part that actually changes the
            // selection).
            int action = event.getAction();

            if (action == MotionEvent.ACTION_UP) {
                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);

                ClickableSpan[] link = buffer.getSpans(off, off, ClickableSpan.class);

                if (link.length != 0) {
                    link[0].onClick(widget);
                    return true;
                }
            }

            return super.onTouchEvent(widget, buffer, event);
        }
    });

    setTheme(loadTheme());

    startupSearch();
}

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From source file:org.telegram.ui.ChatActivity.java

private boolean spanClicked(ListView list, View view, int textViewId) {
    final TextView widget = (TextView) view.findViewById(textViewId);
    if (widget == null) {
        return false;
    }//from w w w . j  a  v  a2  s  . co  m
    try {
        list.offsetRectIntoDescendantCoords(widget, mLastTouch);
        int x = mLastTouch.right;
        int y = mLastTouch.bottom;

        x -= widget.getTotalPaddingLeft();
        y -= widget.getTotalPaddingTop();
        x += widget.getScrollX();
        y += widget.getScrollY();

        final Layout layout = widget.getLayout();
        if (layout == null) {
            return false;
        }
        final int line = layout.getLineForVertical(y);
        final int off = layout.getOffsetForHorizontal(line, x);

        final float left = layout.getLineLeft(line);
        if (left > x || left + layout.getLineWidth(line) < x) {
            return false;
        }

        final Editable buffer = new SpannableStringBuilder(widget.getText());
        if (buffer == null) {
            return false;
        }
        final ClickableSpan[] link = buffer.getSpans(off, off, ClickableSpan.class);

        if (link.length == 0) {
            return false;
        }

        link[0].onClick(widget);
        return true;
    } catch (Exception e) {
        FileLog.e("tmessages", e);
        return false;
    }
}

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From source file:com.nttec.everychan.ui.presentation.BoardFragment.java

private Point getSpanCoordinates(View widget, ClickableURLSpan span) {
    TextView parentTextView = (TextView) widget;

    Rect parentTextViewRect = new Rect();

    // Initialize values for the computing of clickedText position
    SpannableString completeText = (SpannableString) (parentTextView).getText();
    Layout textViewLayout = parentTextView.getLayout();

    int startOffsetOfClickedText = completeText.getSpanStart(span);
    int endOffsetOfClickedText = completeText.getSpanEnd(span);
    double startXCoordinatesOfClickedText = textViewLayout.getPrimaryHorizontal(startOffsetOfClickedText);
    double endXCoordinatesOfClickedText = textViewLayout.getPrimaryHorizontal(endOffsetOfClickedText);

    // Get the rectangle of the clicked text
    int currentLineStartOffset = textViewLayout.getLineForOffset(startOffsetOfClickedText);
    int currentLineEndOffset = textViewLayout.getLineForOffset(endOffsetOfClickedText);
    boolean keywordIsInMultiLine = currentLineStartOffset != currentLineEndOffset;
    textViewLayout.getLineBounds(currentLineStartOffset, parentTextViewRect);

    // Update the rectangle position to his real position on screen
    int[] parentTextViewLocation = { 0, 0 };
    parentTextView.getLocationOnScreen(parentTextViewLocation);

    double parentTextViewTopAndBottomOffset = (parentTextViewLocation[1] - parentTextView.getScrollY()
            + parentTextView.getCompoundPaddingTop());

    Rect windowRect = new Rect();
    activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(windowRect);
    parentTextViewTopAndBottomOffset -= windowRect.top;

    parentTextViewRect.top += parentTextViewTopAndBottomOffset;
    parentTextViewRect.bottom += parentTextViewTopAndBottomOffset;

    parentTextViewRect.left += (parentTextViewLocation[0] + startXCoordinatesOfClickedText
            + parentTextView.getCompoundPaddingLeft() - parentTextView.getScrollX());
    parentTextViewRect.right = (int) (parentTextViewRect.left + endXCoordinatesOfClickedText
            - startXCoordinatesOfClickedText);

    int x = (parentTextViewRect.left + parentTextViewRect.right) / 2;
    int y = (parentTextViewRect.top + parentTextViewRect.bottom) / 2;
    if (keywordIsInMultiLine) {
        x = parentTextViewRect.left;/*from  ww  w .  j  av  a  2  s  .  c om*/
    }

    return new Point(x, y);
}

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