Java TextView.getScrollX方法代碼示例

import android.widget.TextView; //導入方法依賴的package包/類
/**
 * 微博文本觸摸監聽處理
 *
 * @param textView 點擊的TextView
 * @param event
 * @return true：點擊事件被處理；false：點擊事件未被處理，向上冒泡
 */
private boolean textTouchEvent(TextView textView, MotionEvent event) {
    boolean ret = false;
    CharSequence text = textView.getText();
    Spannable sText = Spannable.Factory.getInstance().newSpannable(text);
    int action = event.getAction();
    if (action == MotionEvent.ACTION_UP || action == MotionEvent.ACTION_DOWN) {
        int x = (int) event.getX();
        int y = (int) event.getY();
        x -= textView.getTotalPaddingLeft();
        y -= textView.getTotalPaddingTop();
        x += textView.getScrollX();
        y += textView.getScrollY();
        Layout layout = textView.getLayout();
        int line = layout.getLineForVertical(y);
        int offset = layout.getOffsetForHorizontal(line, x);
        ClickableSpan[] links = sText.getSpans(offset, offset, ClickableSpan.class);
        if (links.length != 0) {
            if (action == MotionEvent.ACTION_UP) {
                links[0].onClick(textView);
            }
            ret = true;
        }
    }
    return ret;
}
 

import android.widget.TextView; //導入方法依賴的package包/類
public boolean onTouchEvent(TextView widget, Spannable buffer, MotionEvent event) {
    if (event.getAction() == 1) {
        this.mLinkClicked = false;
        this.mClickedLink = null;
        int x = (((int) event.getX()) - widget.getTotalPaddingLeft()) + widget.getScrollX();
        int y = (((int) event.getY()) - widget.getTotalPaddingTop()) + widget.getScrollY();
        Layout layout = widget.getLayout();
        int off = layout.getOffsetForHorizontal(layout.getLineForVertical(y), (float) x);
        ClickableSpan[] link = (ClickableSpan[]) buffer.getSpans(off, off, ClickableSpan
                .class);
        if (link.length != 0) {
            SensibleUrlSpan span = link[0];
            this.mLinkClicked = span.onClickSpan(widget);
            this.mClickedLink = span.getURL();
            return this.mLinkClicked;
        }
    }
    super.onTouchEvent(widget, buffer, event);
    return false;
}
 

import android.widget.TextView; //導入方法依賴的package包/類
@Override
public boolean onTouchEvent(TextView widget, Spannable buffer, MotionEvent event) {
    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);

    MathSpannable[] spans = buffer.getSpans(off, off, MathSpannable.class);

    if (spans.length != 0) {
        return spans[0].onTouchEvent(event);
    }

    return false;
}
 

import android.widget.TextView; //導入方法依賴的package包/類
CsDrawableTouchUtils(MotionEvent event, TextView view, boolean isLayoutRTL){
    this.event = event;
    this.view = view;
    this.isLayoutRTL = isLayoutRTL;
    vSpace = view.getHeight() - view.getCompoundPaddingBottom() - view.getCompoundPaddingTop();
    hSpace = view.getWidth() - view.getCompoundPaddingRight() - view.getCompoundPaddingLeft();
    //if the drawable is extremely large (pushing the edges of the drawable itself
    //or of the other drawables out of the current view bounds, will not be possible
    //to calculate the correct touch position
    if (hSpace < 0 || vSpace < 0){
        throw new IllegalArgumentException("The size of one of your drawable is exceeding the" +
                " calculated width or height of the view. In this case you should provide" +
                "a smaller drawable or provide a smaller dimension in XML or with the builder");
    }
    scrollX = view.getScrollX();
    scrollY = view.getScrollY();
}
 

import android.widget.TextView; //導入方法依賴的package包/類
@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);

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

        if (link.length != 0) {
            if (action == MotionEvent.ACTION_UP) {
                link[0].onClick(widget);
            } else if (action == MotionEvent.ACTION_DOWN) {
                Selection.setSelection(buffer,
                        buffer.getSpanStart(link[0]),
                        buffer.getSpanEnd(link[0]));
            }

            return true;
        } else {
            Selection.removeSelection(buffer);
            Touch.onTouchEvent(widget, buffer, event);
            return false;
        }
    }
    return Touch.onTouchEvent(widget, buffer, event);
}
 

import android.widget.TextView; //導入方法依賴的package包/類
public boolean onTouchEvent(TextView widget, Spannable buffer, MotionEvent event) {
    int action = event.getAction();
    if (action == 1 || action == 0) {
        int x = (((int) event.getX()) - widget.getTotalPaddingLeft()) + widget.getScrollX();
        int y = (((int) event.getY()) - widget.getTotalPaddingTop()) + widget.getScrollY();
        Layout layout = widget.getLayout();
        int off = layout.getOffsetForHorizontal(layout.getLineForVertical(y), (float) x);
        MyURLSpan[] link = (MyURLSpan[]) buffer.getSpans(off, off, MyURLSpan.class);
        if (link.length != 0) {
            if (action == 1) {
                if (!this.mHasPerformedLongPress) {
                    link[0].onClick(widget);
                }
                this.pressed = false;
                this.lastEvent = new float[2];
            } else if (action == 0) {
                this.pressed = true;
                this.lastEvent[0] = event.getX();
                this.lastEvent[1] = event.getY();
                checkForLongClick(link, widget);
            }
            return true;
        }
    } else if (action == 2) {
        float[] position = new float[]{event.getX(), event.getY()};
        if (Math.sqrt(Math.hypot((double) Math.abs(this.lastEvent[0] - position[0]), (double)
                Math.abs(this.lastEvent[1] - position[1]))) > ((double) 6)) {
            this.pressed = false;
        }
    } else if (action == 3) {
        this.pressed = false;
        this.lastEvent = new float[2];
    } else {
        this.pressed = false;
        this.lastEvent = new float[2];
    }
    return super.onTouchEvent(widget, buffer, event);
}
 

import android.widget.TextView; //導入方法依賴的package包/類
@Override
public boolean onTouchEvent(TextView widget, Spannable buffer,
		MotionEvent event) {
	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 super.onTouchEvent(widget, buffer, event);
}
 

import android.widget.TextView; //導入方法依賴的package包/類
/**
 * Gets the span that was touched.
 * @param tv {@link TextView}
 * @param span {@link Spannable}
 * @param e {@link MotionEvent}
 * @return {@link TouchableSpan}
 */
private TouchableSpan getTouchedSpan(TextView tv, Spannable span, MotionEvent e) {
    // Find the location in which the touch was made
    int x = (int)e.getX();
    int y = (int)e.getY();

    // Ignore padding
    x -= tv.getTotalPaddingLeft();
    y -= tv.getTotalPaddingTop();

    // Account for scrollable text
    x += tv.getScrollX();
    y += tv.getScrollY();

    final Layout layout = tv.getLayout();
    final int touchedLine = layout.getLineForVertical(y);
    final int touchOffset = layout.getOffsetForHorizontal(touchedLine, x);

    // Set bounds of the touched line
    touchBounds.left = layout.getLineLeft(touchedLine);
    touchBounds.top = layout.getLineTop(touchedLine);
    touchBounds.right = layout.getLineRight(touchedLine);
    touchBounds.bottom = layout.getLineBottom(touchedLine);

    // Ensure the span falls within the bounds of the touch
    TouchableSpan touchSpan = null;
    if (touchBounds.contains(x, y)) {
        // Find clickable spans that lie under the touched area
        TouchableSpan[] spans = span.getSpans(touchOffset, touchOffset, TouchableSpan.class);
        touchSpan = (spans.length > 0) ? spans[0] : null;
    }

    return touchSpan;
}
 

import android.widget.TextView; //導入方法依賴的package包/類
/**
 * method that transform an absolute x coordinate to a relative x coordinate
 * @param textView2 fragment textView
 * @param x         x coordinate of the touch event
 * @return          relative x coordinate
 */
private float convertToLocalHorizontalCoordinate(TextView textView2, float x) {
    x -= textView2.getTotalPaddingLeft();
    x = Math.max(0.0f, x);
    x = Math.min(textView2.getWidth() - textView2.getTotalPaddingRight() - 1, x);
    x += textView2.getScrollX();
    return x;
}
 

import android.widget.TextView; //導入方法依賴的package包/類
@Override
public boolean onTouchEvent(TextView widget, Spannable buffer, MotionEvent event) {

    int action = event.getActionMasked();
    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);

        ClickableSpan[] link = buffer.getSpans(off, off, ClickableSpan.class);
        if (link.length > 0) {
            if (action == MotionEvent.ACTION_UP) {
                link[0].onClick(widget);
            } else {
                Selection.setSelection(buffer, buffer.getSpanStart(link[0]),
                        buffer.getSpanEnd(link[0]));
            }
            return true;
        } else {
            Selection.removeSelection(buffer);
        }
    }

    return false;
}
 

import android.widget.TextView; //導入方法依賴的package包/類
@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);

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

        if (link.length != 0) {
            if (action == MotionEvent.ACTION_UP) {
                if(System.currentTimeMillis() - lastClickTime < CLICK_DELAY){
                    link[0].onClick(widget);
                }
            } else if (action == MotionEvent.ACTION_DOWN) {
                Selection.setSelection(buffer,
                        buffer.getSpanStart(link[0]),
                        buffer.getSpanEnd(link[0]));
                lastClickTime = System.currentTimeMillis();
            }

            return true;
        } else {
            Selection.removeSelection(buffer);
        }
    }
    return super.onTouchEvent(widget, buffer, event);
}
 

import android.widget.TextView; //導入方法依賴的package包/類
/**
 * If you implement OnTouchListener, call this one in the onTouch method .
 *
 * @param v The view the touch event has been dispatched to.
 * @param event The MotionEvent object containing full information about the event.
 * @return True if the listener has consumed the event , false otherwise.
 */
public static boolean onTouch(View v, MotionEvent event) {
    int action = event.getAction();
    if (v instanceof TextView) {
        TextView widget = (TextView) v;
        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);

        //* Return the text the TextView is displaying. If TextView.setText() was called with
        // * an argument of BufferType.SPANNABLE or BufferType.EDITABLE, you can cast
        // * the return value from this method to Spannable or Editable, respectively.
        // *
        //* Note: The content of the return value should not be modified. If you want
        //* a modifiable one, you should make your own copy first.
        Spannable buffer = (Spannable) widget.getText();
        ClickableSpanEx[] link = buffer.getSpans(off, off, ClickableSpanEx.class);

        if (link.length != 0) {
            if (action == MotionEvent.ACTION_DOWN) {
                Selection.setSelection(buffer, buffer.getSpanStart(link[0]), buffer.getSpanEnd(link[0]));
                link[0].setTransparent(false);
            }
            else {
                if (action == MotionEvent.ACTION_UP) link[0].onClick(widget);
                link[0].setTransparent(true);
                Selection.removeSelection(buffer);
            }
            return true;
        }

    }
    else {
        Log.e(TAG, "ClickableSpanEx supports TextView only .");
    }
    return false;
}
 

import android.widget.TextView; //導入方法依賴的package包/類
@Override
public boolean onTouchEvent(TextView widget, Spannable buffer, MotionEvent event) {
    int action = event.getAction();

    if (action == MotionEvent.ACTION_UP ||
            action == MotionEvent.ACTION_DOWN ||
            action == MotionEvent.ACTION_MOVE ||
            action == MotionEvent.ACTION_CANCEL) {
        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);

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

        if (link.length > 0) {
            ImageTextSpan imageTextSpan = link[0];
            int spanStart = buffer.getSpanStart(imageTextSpan);
            int spanEnd = buffer.getSpanEnd(imageTextSpan);
            int showTextLength = imageTextSpan.getShowTextLength();

            int top = layout.getLineTop(line);
            int bottom = layout.getLineTop(line + 1);
            float left = layout.getPrimaryHorizontal(spanStart);
            float right = layout.getPrimaryHorizontal(spanStart + showTextLength);

            if (imageTextSpan.isCanClick() && (x >= left && x <= right)   /*(off >= spanStart && off <= spanStart + showTextLength)*/) {
                if (action == MotionEvent.ACTION_UP) {
                    imageTextSpan.onTouchUp(widget);
                    imageTextSpan.onClick(widget);
                    isTouchInSpan = false;
                } else if (action == MotionEvent.ACTION_DOWN) {
                    isTouchInSpan = true;
                    imageTextSpan.onTouchDown(widget, event.getX(), event.getY());
                    if (showSelectionSpanBgColor) {
                        Selection.setSelection(buffer,
                                spanStart,
                                spanEnd);
                    }
                } else if (action == MotionEvent.ACTION_MOVE) {
                    //link[0].onTouchMove(widget, event.getX(), event.getY());
                    //return super.onTouchEvent(widget, buffer, event);
                } else {
                    isTouchInSpan = false;
                    imageTextSpan.onTouchCancel(widget, event.getX(), event.getY());
                    //return super.onTouchEvent(widget, buffer, event);
                }

            } else {
                Selection.removeSelection(buffer);
            }
            return isTouchInSpan;
        } else {
            Selection.removeSelection(buffer);
        }
    }

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

import android.widget.TextView; //導入方法依賴的package包/類
public boolean onTouchEvent(TextView widget, Spannable buffer,
                            MotionEvent event) {

    int action = event.getAction();
    if(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);

        mClickLinks = buffer.getSpans(off, off, ClickableSpan.class);
        if(mClickLinks.length > 0){
            // 點擊的是Span區域，不要把點擊事件傳遞
            setPassToTv(false);
            Selection.setSelection(buffer,
                    buffer.getSpanStart(mClickLinks[0]),
                    buffer.getSpanEnd(mClickLinks[0]));
            //設置點擊區域的背景色
            mBgSpan = new BackgroundColorSpan(AppApplication.getAppResources().getColor(mClickableSpanBgClorId));
            buffer.setSpan(mBgSpan,
                    buffer.getSpanStart(mClickLinks[0]),
                    buffer.getSpanEnd(mClickLinks[0]),
                    Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
        }else{
            setPassToTv(true);
            // textview選中效果
            widget.setBackgroundResource(mTextViewBgColorId);
        }

    }else if(action == MotionEvent.ACTION_UP){
        if(mClickLinks.length > 0){
            mClickLinks[0].onClick(widget);
            if(mBgSpan != null){
                buffer.removeSpan(mBgSpan);
            }
        }else{
            if(mBgSpan != null){
                buffer.removeSpan(mBgSpan);
            }
        }
        Selection.removeSelection(buffer);
        widget.setBackgroundResource(DEFAULT_COLOR);
    }else if(action == MotionEvent.ACTION_MOVE){

    }else{
        if(mBgSpan != null){
            buffer.removeSpan(mBgSpan);
        }
        widget.setBackgroundResource(DEFAULT_COLOR);
    }
    return Touch.onTouchEvent(widget, buffer, event);
}
 

import android.widget.TextView; //導入方法依賴的package包/類
@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);

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

        if (link.length != 0) {
            long currTime = System.currentTimeMillis();
            LongClickableSpan l = link[0];
            int ls = buffer.getSpanStart(l);
            int le = buffer.getSpanEnd(l);
            // 判斷點擊的點是否在Image範圍內
            ClickableImageSpan[] is = buffer.getSpans(ls, le, ClickableImageSpan.class);
            if (is.length > 0) {
                if (!is[0].clicked(x)) {
                    Selection.removeSelection(buffer);
                    return false;
                }
            } else if (off < layout.getOffsetToLeftOf(ls) || off > layout.getOffsetToLeftOf(le + 1)) {
                // 判斷點擊位置是否在鏈接範圍內
                Selection.removeSelection(buffer);
                return false;
            }

            if (action == MotionEvent.ACTION_UP) {
                // 如果按下時間超過５００毫秒，觸發長按事件
                if (currTime - lastTime > MIN_INTERVAL) {
                    if (!l.onLongClick(widget)) {
                        // onLongClick返回false代表事件未處理，交由onClick處理
                        l.onClick(widget);
                    }
                } else {
                    l.onClick(widget);
                }
            } else {
                Selection.setSelection(buffer,
                        ls, le);
            }
            lastTime = currTime;
            return true;
        } else {
            Selection.removeSelection(buffer);
            return false;
        }
    }

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