Java Code Examples for android.widget.TextView#getPaddingLeft()

private void chooseSize(PopupWindow pop, CharSequence text, TextView tv) {
	int wid = tv.getPaddingLeft() + tv.getPaddingRight();
	int ht = tv.getPaddingTop() + tv.getPaddingBottom();

	/*
	 * Figure out how big the text would be if we laid it out to the
	 * full width of this view minus the border.
	 */
	int cap = getWidth() - wid;
	if (cap < 0) {
		cap = 200; // We must not be measured yet -- setFrame() will fix it.
	}

	Layout l = new StaticLayout(text, tv.getPaint(), cap,
			Layout.Alignment.ALIGN_NORMAL, 1, 0, true);
	float max = 0;
	for (int i = 0; i < l.getLineCount(); i++) {
		max = Math.max(max, l.getLineWidth(i));
	}

	/*
	 * Now set the popup size to be big enough for the text plus the border.
	 */
	pop.setWidth(wid + (int) Math.ceil(max));
	pop.setHeight(ht + l.getHeight());
}
 

@Override
public void onSharedElementStart(List<String> sharedElementNames,
                                 List<View> sharedElements,
                                 List<View> sharedElementSnapshots) {
    TextView author = getAuthor();
    targetTextSize = author.getTextSize();
    targetTextColors = author.getTextColors();
    targetPadding = new Rect(author.getPaddingLeft(),
            author.getPaddingTop(),
            author.getPaddingRight(),
            author.getPaddingBottom());
    if (IntentUtil.hasAll(intent,
            IntentUtil.TEXT_COLOR, IntentUtil.FONT_SIZE, IntentUtil.PADDING)) {
        author.setTextColor(intent.getIntExtra(IntentUtil.TEXT_COLOR, Color.BLACK));
        float textSize = intent.getFloatExtra(IntentUtil.FONT_SIZE, targetTextSize);
        author.setTextSize(TypedValue.COMPLEX_UNIT_PX, textSize);
        Rect padding = intent.getParcelableExtra(IntentUtil.PADDING);
        author.setPadding(padding.left, padding.top, padding.right, padding.bottom);
    }
}
 

@Override
public void onSharedElementStart(List<String> sharedElementNames,
                                 List<View> sharedElements,
                                 List<View> sharedElementSnapshots) {
    TextView author = getAuthor();
    targetTextSize = author.getTextSize();
    targetTextColors = author.getTextColors();
    targetPadding = new Rect(author.getPaddingLeft(),
            author.getPaddingTop(),
            author.getPaddingRight(),
            author.getPaddingBottom());
    if (IntentUtil.hasAll(intent,
            IntentUtil.TEXT_COLOR, IntentUtil.FONT_SIZE, IntentUtil.PADDING)) {
        author.setTextColor(intent.getIntExtra(IntentUtil.TEXT_COLOR, Color.BLACK));
        float textSize = intent.getFloatExtra(IntentUtil.FONT_SIZE, targetTextSize);
        author.setTextSize(TypedValue.COMPLEX_UNIT_PX, textSize);
        Rect padding = intent.getParcelableExtra(IntentUtil.PADDING);
        author.setPadding(padding.left, padding.top, padding.right, padding.bottom);
    }
}
 

public static float GetLetterPositionX(@NonNull TextView aView, int aLetterIndex, boolean aClamp) {
    Layout layout = aView.getLayout();
    if (layout == null) {
        return 0;
    }
    float x = layout.getPrimaryHorizontal(aLetterIndex);
    x += aView.getPaddingLeft();
    x -= aView.getScrollX();
    if (aClamp && x > (aView.getMeasuredWidth() - aView.getPaddingRight())) {
        x = aView.getMeasuredWidth() - aView.getPaddingRight();
    }
    if (aClamp && x < aView.getPaddingLeft()) {
        x = aView.getPaddingLeft();
    }
    return x;
}
 

private static void onCenterDraw(TextView view, Canvas canvas, Drawable drawable, int gravity) {
    int drawablePadding = view.getCompoundDrawablePadding();
    int ratio = 1;
    float total;
    switch (gravity) {
        case Gravity.RIGHT:
            ratio = -1;
        case Gravity.LEFT:
            total = view.getPaint().measureText(view.getText().toString()) + drawable.getIntrinsicWidth() + drawablePadding + view.getPaddingLeft() + view.getPaddingRight();
            canvas.translate(ratio * (view.getWidth() - total) / 2, 0);
            break;
        case Gravity.BOTTOM:
            ratio = -1;
        case Gravity.TOP:
            Paint.FontMetrics fontMetrics0 = view.getPaint().getFontMetrics();
            total = fontMetrics0.descent - fontMetrics0.ascent + drawable.getIntrinsicHeight() + drawablePadding + view.getPaddingTop() + view.getPaddingBottom();
            canvas.translate(0, ratio * (view.getHeight() - total) / 2);
            break;
    }
}
 

@Override
public void onSharedElementStart(List<String> sharedElementNames,
                                 List<View> sharedElements,
                                 List<View> sharedElementSnapshots) {
    TextView author = getAuthor();
    targetTextSize = author.getTextSize();
    targetTextColors = author.getTextColors();
    targetPadding = new Rect(author.getPaddingLeft(),
            author.getPaddingTop(),
            author.getPaddingRight(),
            author.getPaddingBottom());
    if (IntentUtil.INSTANCE.hasAll(intent,
            IntentUtil.INSTANCE.getTEXT_COLOR(), IntentUtil.INSTANCE.getFONT_SIZE(), IntentUtil.INSTANCE.getPADDING())) {
        author.setTextColor(intent.getIntExtra(IntentUtil.INSTANCE.getTEXT_COLOR(), Color.BLACK));
        float textSize = intent.getFloatExtra(IntentUtil.INSTANCE.getFONT_SIZE(), targetTextSize);
        author.setTextSize(TypedValue.COMPLEX_UNIT_PX, textSize);
        Rect padding = intent.getParcelableExtra(IntentUtil.INSTANCE.getPADDING());
        author.setPadding(padding.left, padding.top, padding.right, padding.bottom);
    }
}
 

private static Bitmap captureTextBitmap(TextView textView) {
  Drawable background = textView.getBackground();
  textView.setBackground(null);
  int width = textView.getWidth() - textView.getPaddingLeft() - textView.getPaddingRight();
  int height = textView.getHeight() - textView.getPaddingTop() - textView.getPaddingBottom();
  if (width == 0 || height == 0) {
    return null;
  }
  Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
  Canvas canvas = new Canvas(bitmap);
  canvas.translate(-textView.getPaddingLeft(), -textView.getPaddingTop());
  textView.draw(canvas);
  textView.setBackground(background);
  return bitmap;
}
 

public static float a(TextView tv) {
    float f = 0.0F;
    if (tv != null) {
        float f1 = 0.0f;
        CharSequence text = tv.getText();
        if (!TextUtils.isEmpty(text)) {
            f1 = tv.getPaint().measureText(text.toString());
        }
        int i = tv.getPaddingLeft();
        int j = tv.getPaddingRight();
        f = f1 + (float) (j + i);
    }
    return f;
}
 

public TextResizeData(TextView textView) {
    this.paddingLeft = textView.getPaddingLeft();
    this.paddingTop = textView.getPaddingTop();
    this.paddingRight = textView.getPaddingRight();
    this.paddingBottom = textView.getPaddingBottom();
    this.width = textView.getWidth();
    this.height = textView.getHeight();
    this.gravity = textView.getGravity();
    this.textColor = textView.getCurrentTextColor();
}
 

private void setBubble(TextView txtContent, ChatMsg chatMsg) {		
	Integer nOldBubble = (Integer)txtContent.getTag();
	if (null == nOldBubble || nOldBubble != chatMsg.m_nBubble) {
		int left = txtContent.getPaddingLeft();
        int right = txtContent.getPaddingRight();
        int top = txtContent.getPaddingTop();
        int bottom = txtContent.getPaddingBottom();

        boolean bIsUser = (ChatMsg.RIGHT == chatMsg.m_nType);
		boolean bUseDefBubble = true;
		
		if (chatMsg.m_nBubble != 0) {				
			//
		}
		
		if (bUseDefBubble) {
			if (bIsUser) {
				txtContent.setBackgroundResource(R.drawable.btn_style7);
				txtContent.setTextColor(0xFFFFFFFF);
                   txtContent.setTextIsSelectable(true);
				txtContent.setLinkTextColor(0xFF0000FF);
			} else {
				txtContent.setBackgroundResource(R.drawable.btn_style6);
				txtContent.setTextColor(0xFF000000);
                   txtContent.setTextIsSelectable(true);
				txtContent.setLinkTextColor(0xFF0000FF);
			}
			txtContent.setTag(0);
		}
		
		txtContent.setPadding(left, top, right, bottom);
	}
}
 

@NonNull
private String autoSplitText(final TextView tv) {
    final String rawText = tv.getText().toString(); //原始文本
    final Paint tvPaint = tv.getPaint(); //paint，包含字体等信息
    final float tvWidth = tv.getWidth() - tv.getPaddingLeft() - tv.getPaddingRight(); //控件可用宽度
    
    //将原始文本按行拆分
    String [] rawTextLines = rawText.replaceAll("\r", "").split("\n");
    StringBuilder sbNewText = new StringBuilder();
    for (String rawTextLine : rawTextLines) {
        if (tvPaint.measureText(rawTextLine) <= tvWidth) {
            //如果整行宽度在控件可用宽度之内，就不处理了
            sbNewText.append(rawTextLine);
        } else {
            //如果整行宽度超过控件可用宽度，则按字符测量，在超过可用宽度的前一个字符处手动换行
            float lineWidth = 0;
            for (int cnt = 0; cnt != rawTextLine.length(); ++cnt) {
                char ch = rawTextLine.charAt(cnt);
                lineWidth += tvPaint.measureText(String.valueOf(ch));
                if (lineWidth <= tvWidth) {
                    sbNewText.append(ch);
                } else {
                    sbNewText.append("\n");
                    lineWidth = 0;
                    --cnt;
                }
            }
        }
        sbNewText.append("\n");
    }
    
    //把结尾多余的\n去掉
    if (!rawText.endsWith("\n")) {
        sbNewText.deleteCharAt(sbNewText.length() - 1);
    }
    
    return sbNewText.toString();
}
 

private static Bitmap captureTextBitmap(TextView textView) {
    Drawable background = textView.getBackground();
    textView.setBackground(null);
    int width = textView.getWidth() - textView.getPaddingLeft() - textView.getPaddingRight();
    int height = textView.getHeight() - textView.getPaddingTop() - textView.getPaddingBottom();
    if (width == 0 || height == 0) {
        return null;
    }
    Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(bitmap);
    canvas.translate(-textView.getPaddingLeft(), -textView.getPaddingTop());
    textView.draw(canvas);
    textView.setBackground(background);
    return bitmap;
}
 

public void layoutImportantNotice(final View importantNoticeStrip,
        final String importantNoticeTitle) {
    final TextView titleView = (TextView)importantNoticeStrip.findViewById(
            R.id.important_notice_title);
    final int width = titleView.getWidth() - titleView.getPaddingLeft()
            - titleView.getPaddingRight();
    titleView.setTextColor(mColorAutoCorrect);
    titleView.setText(importantNoticeTitle); // TextView.setText() resets text scale x to 1.0.
    final float titleScaleX = getTextScaleX(importantNoticeTitle, width, titleView.getPaint());
    titleView.setTextScaleX(titleScaleX);
}
 

/**
 * 判断TextView的内容宽度是否超出其可用宽度
 *
 * @param tv
 * @return
 */
public static boolean isOverFlowed(TextView tv, int maxWidth) {
    int availableWidth = maxWidth - tv.getPaddingLeft() - tv.getPaddingRight();
    Paint textViewPaint = tv.getPaint();
    float textWidth = textViewPaint.measureText(tv.getText().toString());
    if (textWidth > availableWidth) {
        return true;
    } else {
        return false;
    }
}
 

@Override
public void dispatchMessage(Message msg) {
    if (msg.what == SET_BOUNDS) {
        //noinspection unchecked
        Pair<Drawable, TextView> pair = (Pair<Drawable, TextView>) msg.obj;
        Drawable drawable = pair.first;
        TextView textView = pair.second;
        int width = textView.getWidth() - textView.getPaddingLeft() - textView.getPaddingRight();
        drawable.setBounds(0, 0, width, width / 2);
    }
}
 

private static CharSequence truncateImageSpan(Spannable instructionSpannable, TextView textView) {
  int availableSpace = textView.getWidth() - textView.getPaddingRight() - textView.getPaddingLeft();
  return TextUtils.ellipsize(instructionSpannable, textView.getPaint(), availableSpace, TextUtils.TruncateAt.END);
}
 

/**
 * Re-sizes the textSize of the TextView so that the text fits within the bounds of the View.
 */
private static void autofit(TextView view, TextPaint paint, float minTextSize, float maxTextSize,
                            int maxLines, float precision) {
    if (maxLines <= 0 || maxLines == Integer.MAX_VALUE) {
        // Don't auto-size since there's no limit on lines.
        return;
    }

    int targetWidth = view.getWidth() - view.getPaddingLeft() - view.getPaddingRight();
    if (targetWidth <= 0) {
        return;
    }

    CharSequence text = view.getText();
    TransformationMethod method = view.getTransformationMethod();
    if (method != null) {
        text = method.getTransformation(text, view);
    }

    Context context = view.getContext();
    Resources r = Resources.getSystem();
    DisplayMetrics displayMetrics;

    float size = maxTextSize;
    float high = size;
    float low = 0;

    if (context != null) {
        r = context.getResources();
    }
    displayMetrics = r.getDisplayMetrics();

    paint.set(view.getPaint());
    paint.setTextSize(size);

    if ((maxLines == 1 && paint.measureText(text, 0, text.length()) > targetWidth)
            || getLineCount(text, paint, size, targetWidth, displayMetrics) > maxLines) {
        size = getAutofitTextSize(text, paint, targetWidth, maxLines, low, high, precision,
                displayMetrics);
    }

    if (size < minTextSize) {
        size = minTextSize;
    }

    view.setTextSize(TypedValue.COMPLEX_UNIT_PX, size);
}
 

public void addTextTab(final int id, CharSequence text) {
    int position = tabCount++;
    if (position == 0 && selectedTabId == -1) {
        selectedTabId = id;
    }
    positionToId.put(position, id);
    idToPosition.put(id, position);
    if (selectedTabId != -1 && selectedTabId == id) {
        currentPosition = position;
        prevLayoutWidth = 0;
    }
    TextView tab = new TextView(getContext());
    tab.setWillNotDraw(false);
    tab.setGravity(Gravity.CENTER);
    tab.setText(text);
    tab.setBackgroundDrawable(Theme.createSelectorDrawable(Theme.getColor(selectorColorKey), 3));
    tab.setTextSize(TypedValue.COMPLEX_UNIT_DIP, 15);
    tab.setSingleLine(true);
    tab.setTypeface(AndroidUtilities.getTypeface("fonts/rmedium.ttf"));
    tab.setPadding(AndroidUtilities.dp(16), 0, AndroidUtilities.dp(16), 0);
    tab.setOnClickListener(v -> {
        int position1 = tabsContainer.indexOfChild(v);
        if (position1 < 0) {
            return;
        }
        if (position1 == currentPosition && delegate != null) {
            delegate.onSamePageSelected();
            return;
        }
        boolean scrollingForward = currentPosition < position1;
        scrollingToChild = -1;
        previousPosition = currentPosition;
        currentPosition = position1;
        selectedTabId = id;

        if (animatingIndicator) {
            AndroidUtilities.cancelRunOnUIThread(animationRunnable);
            animatingIndicator = false;
        }

        animationTime = 0;
        animatingIndicator = true;
        animateIndicatorStartX = indicatorX;
        animateIndicatorStartWidth = indicatorWidth;

        TextView nextChild = (TextView) v;
        animateIndicatorToWidth = getChildWidth(nextChild);
        animateIndicatorToX = nextChild.getLeft() + (nextChild.getMeasuredWidth() - animateIndicatorToWidth) / 2;
        setEnabled(false);

        AndroidUtilities.runOnUIThread(animationRunnable, 16);

        if (delegate != null) {
            delegate.onPageSelected(id, scrollingForward);
        }
        scrollToChild(position1);
    });
    int tabWidth = (int) Math.ceil(tab.getPaint().measureText(text, 0, text.length())) + tab.getPaddingLeft() + tab.getPaddingRight();
    allTextWidth += tabWidth;
    positionToWidth.put(position, tabWidth);
    tabsContainer.addView(tab, LayoutHelper.createLinear(0, LayoutHelper.MATCH_PARENT));
}
 

/**
 * Re-sizes the textSize of the TextView so that the text fits within the bounds of the View.
 */
private static void autofit(TextView view, TextPaint paint, float minTextSize, float maxTextSize,
                            int maxLines, float precision) {
    if (maxLines <= 0 || maxLines == Integer.MAX_VALUE) {
        // Don't auto-size since there's no limit on lines.
        return;
    }

    int targetWidth = view.getWidth() - view.getPaddingLeft() - view.getPaddingRight();
    if (targetWidth <= 0) {
        return;
    }

    CharSequence text = view.getText();
    TransformationMethod method = view.getTransformationMethod();
    if (method != null) {
        text = method.getTransformation(text, view);
    }

    Context context = view.getContext();
    Resources r = Resources.getSystem();
    DisplayMetrics displayMetrics;

    float size = maxTextSize;
    float high = size;
    float low = 0;

    if (context != null) {
        r = context.getResources();
    }
    displayMetrics = r.getDisplayMetrics();

    paint.set(view.getPaint());
    paint.setTextSize(size);

    if ((maxLines == 1 && paint.measureText(text, 0, text.length()) > targetWidth)
            || getLineCount(text, paint, size, targetWidth, displayMetrics) > maxLines) {
        size = getAutofitTextSize(text, paint, targetWidth, maxLines, low, high, precision,
                displayMetrics);
    }

    if (size < minTextSize) {
        size = minTextSize;
    }

    view.setTextSize(TypedValue.COMPLEX_UNIT_PX, size);
}
 

public void addTextTab(final int id, CharSequence text) {
    int position = tabCount++;
    if (position == 0 && selectedTabId == -1) {
        selectedTabId = id;
    }
    positionToId.put(position, id);
    idToPosition.put(id, position);
    if (selectedTabId != -1 && selectedTabId == id) {
        currentPosition = position;
        prevLayoutWidth = 0;
    }
    TextView tab = new TextView(getContext());
    tab.setWillNotDraw(false);
    tab.setGravity(Gravity.CENTER);
    tab.setText(text);
    tab.setBackgroundDrawable(Theme.createSelectorDrawable(Theme.getColor(selectorColorKey), 3));
    tab.setTextSize(TypedValue.COMPLEX_UNIT_DIP, 15);
    tab.setSingleLine(true);
    tab.setTypeface(AndroidUtilities.getTypeface("fonts/rmedium.ttf"));
    tab.setPadding(AndroidUtilities.dp(16), 0, AndroidUtilities.dp(16), 0);
    tab.setOnClickListener(v -> {
        int position1 = tabsContainer.indexOfChild(v);
        if (position1 < 0) {
            return;
        }
        if (position1 == currentPosition && delegate != null) {
            delegate.onSamePageSelected();
            return;
        }
        boolean scrollingForward = currentPosition < position1;
        scrollingToChild = -1;
        previousPosition = currentPosition;
        currentPosition = position1;
        selectedTabId = id;

        if (animatingIndicator) {
            AndroidUtilities.cancelRunOnUIThread(animationRunnable);
            animatingIndicator = false;
        }

        animationTime = 0;
        animatingIndicator = true;
        animateIndicatorStartX = indicatorX;
        animateIndicatorStartWidth = indicatorWidth;

        TextView nextChild = (TextView) v;
        animateIndicatorToWidth = getChildWidth(nextChild);
        animateIndicatorToX = nextChild.getLeft() + (nextChild.getMeasuredWidth() - animateIndicatorToWidth) / 2;
        setEnabled(false);

        AndroidUtilities.runOnUIThread(animationRunnable, 16);

        if (delegate != null) {
            delegate.onPageSelected(id, scrollingForward);
        }
        scrollToChild(position1);
    });
    int tabWidth = (int) Math.ceil(tab.getPaint().measureText(text, 0, text.length())) + tab.getPaddingLeft() + tab.getPaddingRight();
    allTextWidth += tabWidth;
    positionToWidth.put(position, tabWidth);
    tabsContainer.addView(tab, LayoutHelper.createLinear(0, LayoutHelper.MATCH_PARENT));
}