@Override
protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
super.onLayout(changed, left, top, right, bottom);
if (changed) {
adjustBottomLines();
}
}
@Override
protected void onAttachedToWindow() {
super.onAttachedToWindow();
if (!firstShown) {
firstShown = true;
}
}
@Override
public void setOnFocusChangeListener(OnFocusChangeListener listener) {
if (innerFocusChangeListener == null) {
super.setOnFocusChangeListener(listener);
} else {
outerFocusChangeListener = listener;
}
}
/** Set paddings to the correct values */
private void correctPaddings() {
int buttonsWidthLeft = 0, buttonsWidthRight = 0;
int buttonsWidth = iconOuterWidth * getButtonsCount();
if (isRTL()) {
buttonsWidthLeft = buttonsWidth;
} else {
buttonsWidthRight = buttonsWidth;
}
super.setPadding(
innerPaddingLeft + extraPaddingLeft + buttonsWidthLeft,
innerPaddingTop + extraPaddingTop,
innerPaddingRight + extraPaddingRight + buttonsWidthRight,
innerPaddingBottom + extraPaddingBottom);
}
private void initFloatingLabel() {
// observe the text changing
addTextChangedListener(
new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {}
@Override
public void afterTextChanged(Editable s) {
if (floatingLabelEnabled) {
if (s.length() == 0) {
if (floatingLabelShown) {
floatingLabelShown = false;
getLabelAnimator().reverse();
}
} else if (!floatingLabelShown) {
floatingLabelShown = true;
getLabelAnimator().start();
}
}
}
});
// observe the focus state to animate the floating label's text color appropriately
innerFocusChangeListener =
new OnFocusChangeListener() {
@Override
public void onFocusChange(View v, boolean hasFocus) {
if (floatingLabelEnabled && highlightFloatingLabel) {
if (hasFocus) {
getLabelFocusAnimator().start();
} else {
getLabelFocusAnimator().reverse();
}
}
if (validateOnFocusLost && !hasFocus) {
validate();
}
if (outerFocusChangeListener != null) {
outerFocusChangeListener.onFocusChange(v, hasFocus);
}
}
};
super.setOnFocusChangeListener(innerFocusChangeListener);
}
/**
* use {@link #setPaddings(int, int, int, int)} instead, or the paddingTop and the paddingBottom
* may be set incorrectly.
*/
@Deprecated
@Override
public final void setPadding(int left, int top, int right, int bottom) {
super.setPadding(left, top, right, bottom);
}
@Override
protected void onDraw(@NonNull Canvas canvas) {
int startX = getScrollX() + (iconLeftBitmaps == null ? 0 : (iconOuterWidth + iconPadding));
int endX =
getScrollX()
+ (iconRightBitmaps == null ? getWidth() : getWidth() - iconOuterWidth - iconPadding);
int lineStartY = getScrollY() + getHeight() - getPaddingBottom();
// draw the icon(s)
paint.setAlpha(255);
if (iconLeftBitmaps != null) {
Bitmap icon = iconLeftBitmaps[!isInternalValid() ? 3 : !isEnabled() ? 2 : hasFocus() ? 1 : 0];
int iconLeft = startX - iconPadding - iconOuterWidth + (iconOuterWidth - icon.getWidth()) / 2;
int iconTop =
lineStartY + bottomSpacing - iconOuterHeight + (iconOuterHeight - icon.getHeight()) / 2;
canvas.drawBitmap(icon, iconLeft, iconTop, paint);
}
if (iconRightBitmaps != null) {
Bitmap icon =
iconRightBitmaps[!isInternalValid() ? 3 : !isEnabled() ? 2 : hasFocus() ? 1 : 0];
int iconRight = endX + iconPadding + (iconOuterWidth - icon.getWidth()) / 2;
int iconTop =
lineStartY + bottomSpacing - iconOuterHeight + (iconOuterHeight - icon.getHeight()) / 2;
canvas.drawBitmap(icon, iconRight, iconTop, paint);
}
// draw the clear button
if (hasFocus() && showClearButton && !TextUtils.isEmpty(getText()) && isEnabled()) {
paint.setAlpha(255);
int buttonLeft;
if (isRTL()) {
buttonLeft = startX;
} else {
buttonLeft = endX - iconOuterWidth;
}
Bitmap clearButtonBitmap = clearButtonBitmaps[0];
buttonLeft += (iconOuterWidth - clearButtonBitmap.getWidth()) / 2;
int iconTop =
lineStartY
+ bottomSpacing
- iconOuterHeight
+ (iconOuterHeight - clearButtonBitmap.getHeight()) / 2;
canvas.drawBitmap(clearButtonBitmap, buttonLeft, iconTop, paint);
}
// draw the underline
if (!hideUnderline) {
lineStartY += bottomSpacing;
if (!isInternalValid()) { // not valid
paint.setColor(errorColor);
canvas.drawRect(startX, lineStartY, endX, lineStartY + getPixel(2), paint);
} else if (!isEnabled()) { // disabled
paint.setColor(underlineColor != -1 ? underlineColor : baseColor & 0x00ffffff | 0x44000000);
float interval = getPixel(1);
for (float xOffset = 0; xOffset < getWidth(); xOffset += interval * 3) {
canvas.drawRect(
startX + xOffset,
lineStartY,
startX + xOffset + interval,
lineStartY + getPixel(1),
paint);
}
} else if (hasFocus()) { // focused
paint.setColor(primaryColor);
canvas.drawRect(startX, lineStartY, endX, lineStartY + getPixel(2), paint);
} else { // normal
paint.setColor(underlineColor != -1 ? underlineColor : baseColor & 0x00ffffff | 0x1E000000);
canvas.drawRect(startX, lineStartY, endX, lineStartY + getPixel(1), paint);
}
}
textPaint.setTextSize(bottomTextSize);
Paint.FontMetrics textMetrics = textPaint.getFontMetrics();
float relativeHeight = -textMetrics.ascent - textMetrics.descent;
float bottomTextPadding = bottomTextSize + textMetrics.ascent + textMetrics.descent;
// draw the characters counter
if ((hasFocus() && hasCharactersCounter()) || !isCharactersCountValid()) {
textPaint.setColor(
isCharactersCountValid() ? (baseColor & 0x00ffffff | 0x44000000) : errorColor);
String charactersCounterText = getCharactersCounterText();
canvas.drawText(
charactersCounterText,
isRTL() ? startX : endX - textPaint.measureText(charactersCounterText),
lineStartY + bottomSpacing + relativeHeight,
textPaint);
}
// draw the bottom text
if (textLayout != null) {
if (tempErrorText != null
|| ((helperTextAlwaysShown || hasFocus())
&& !TextUtils.isEmpty(helperText))) { // error text or helper text
textPaint.setColor(
tempErrorText != null
? errorColor
: helperTextColor != -1 ? helperTextColor : (baseColor & 0x00ffffff | 0x44000000));
canvas.save();
if (isRTL()) {
canvas.translate(
endX - textLayout.getWidth(), lineStartY + bottomSpacing - bottomTextPadding);
} else {
canvas.translate(
startX + getBottomTextLeftOffset(), lineStartY + bottomSpacing - bottomTextPadding);
}
textLayout.draw(canvas);
canvas.restore();
}
}
// draw the floating label
if (floatingLabelEnabled && !TextUtils.isEmpty(floatingLabelText)) {
textPaint.setTextSize(floatingLabelTextSize);
// calculate the text color
textPaint.setColor(
(Integer)
focusEvaluator.evaluate(
focusFraction * (isEnabled() ? 1 : 0),
floatingLabelTextColor != -1
? floatingLabelTextColor
: (baseColor & 0x00ffffff | 0x44000000),
primaryColor));
// calculate the horizontal position
float floatingLabelWidth = textPaint.measureText(floatingLabelText.toString());
int floatingLabelStartX;
if ((getGravity() & Gravity.RIGHT) == Gravity.RIGHT || isRTL()) {
floatingLabelStartX = (int) (endX - floatingLabelWidth);
} else if ((getGravity() & Gravity.LEFT) == Gravity.LEFT) {
floatingLabelStartX = startX;
} else {
floatingLabelStartX =
startX
+ (int)
(getInnerPaddingLeft()
+ (getWidth()
- getInnerPaddingLeft()
- getInnerPaddingRight()
- floatingLabelWidth)
/ 2);
}
// calculate the vertical position
int distance = floatingLabelPadding;
int floatingLabelStartY =
(int)
(innerPaddingTop
+ floatingLabelTextSize
+ floatingLabelPadding
- distance * (floatingLabelAlwaysShown ? 1 : floatingLabelFraction)
+ getScrollY());
// calculate the alpha
int alpha =
((int)
((floatingLabelAlwaysShown ? 1 : floatingLabelFraction)
* 0xff
* (0.74f * focusFraction * (isEnabled() ? 1 : 0) + 0.26f)
* (floatingLabelTextColor != -1
? 1
: Color.alpha(floatingLabelTextColor) / 256f)));
textPaint.setAlpha(alpha);
// draw the floating label
canvas.drawText(
floatingLabelText.toString(), floatingLabelStartX, floatingLabelStartY, textPaint);
}
// draw the bottom ellipsis
if (hasFocus() && singleLineEllipsis && getScrollX() != 0) {
paint.setColor(isInternalValid() ? primaryColor : errorColor);
float startY = lineStartY + bottomSpacing;
int ellipsisStartX;
if (isRTL()) {
ellipsisStartX = endX;
} else {
ellipsisStartX = startX;
}
int signum = isRTL() ? -1 : 1;
canvas.drawCircle(
ellipsisStartX + signum * bottomEllipsisSize / 2,
startY + bottomEllipsisSize / 2,
bottomEllipsisSize / 2,
paint);
canvas.drawCircle(
ellipsisStartX + signum * bottomEllipsisSize * 5 / 2,
startY + bottomEllipsisSize / 2,
bottomEllipsisSize / 2,
paint);
canvas.drawCircle(
ellipsisStartX + signum * bottomEllipsisSize * 9 / 2,
startY + bottomEllipsisSize / 2,
bottomEllipsisSize / 2,
paint);
}
// draw the original things
super.onDraw(canvas);
}
