android.widget.TextView#setTextScaleX ( )源码实例Demo

private int layoutPunctuationsAndReturnStartIndexOfMoreSuggestions(
        final PunctuationSuggestions punctuationSuggestions, final ViewGroup stripView) {
    final int countInStrip = Math.min(punctuationSuggestions.size(), PUNCTUATIONS_IN_STRIP);
    for (int positionInStrip = 0; positionInStrip < countInStrip; positionInStrip++) {
        if (positionInStrip != 0) {
            // Add divider if this isn't the left most suggestion in suggestions strip.
            addDivider(stripView, mDividerViews.get(positionInStrip));
        }

        final TextView wordView = mWordViews.get(positionInStrip);
        final String punctuation = punctuationSuggestions.getLabel(positionInStrip);
        // {@link TextView#getTag()} is used to get the index in suggestedWords at
        // {@link SuggestionStripView#onClick(View)}.
        wordView.setTag(positionInStrip);
        wordView.setText(punctuation);
        wordView.setContentDescription(punctuation);
        wordView.setTextScaleX(1.0f);
        wordView.setCompoundDrawables(null, null, null, null);
        wordView.setTextColor(mColorAutoCorrect);
        stripView.addView(wordView);
        setLayoutWeight(wordView, 1.0f, mSuggestionsStripHeight);
    }
    mMoreSuggestionsAvailable = (punctuationSuggestions.size() > countInStrip);
    return countInStrip;
}
 

private int layoutPunctuationsAndReturnStartIndexOfMoreSuggestions(
        final PunctuationSuggestions punctuationSuggestions, final ViewGroup stripView) {
    final int countInStrip = Math.min(punctuationSuggestions.size(), PUNCTUATIONS_IN_STRIP);
    for (int positionInStrip = 0; positionInStrip < countInStrip; positionInStrip++) {
        if (positionInStrip != 0) {
            // Add divider if this isn't the left most suggestion in suggestions strip.
            addDivider(stripView, mDividerViews.get(positionInStrip));
        }

        final TextView wordView = mWordViews.get(positionInStrip);
        final String punctuation = punctuationSuggestions.getLabel(positionInStrip);
        // {@link TextView#getTag()} is used to get the index in suggestedWords at
        // {@link SuggestionStripView#onClick(View)}.
        wordView.setTag(positionInStrip);
        wordView.setText(punctuation);
        wordView.setContentDescription(punctuation);
        wordView.setTextScaleX(1.0f);
        wordView.setCompoundDrawables(null, null, null, null);
        wordView.setTextColor(mColorAutoCorrect);
        stripView.addView(wordView);
        setLayoutWeight(wordView, 1.0f, mSuggestionsStripHeight);
    }
    mMoreSuggestionsAvailable = (punctuationSuggestions.size() > countInStrip);
    return countInStrip;
}
 

private int layoutPunctuationsAndReturnStartIndexOfMoreSuggestions(
        final PunctuationSuggestions punctuationSuggestions, final ViewGroup stripView) {
    final int countInStrip = Math.min(punctuationSuggestions.size(), PUNCTUATIONS_IN_STRIP);
    for (int positionInStrip = 0; positionInStrip < countInStrip; positionInStrip++) {
        if (positionInStrip != 0) {
            // Add divider if this isn't the left most suggestion in suggestions strip.
            addDivider(stripView, mDividerViews.get(positionInStrip));
        }

        final TextView wordView = mWordViews.get(positionInStrip);
        final String punctuation = punctuationSuggestions.getLabel(positionInStrip);
        // {@link TextView#getTag()} is used to get the index in suggestedWords at
        // {@link SuggestionStripView#onClick(View)}.
        wordView.setTag(positionInStrip);
        wordView.setText(punctuation);
        wordView.setContentDescription(punctuation);
        wordView.setTextScaleX(1.0f);
        wordView.setCompoundDrawables(null, null, null, null);
        wordView.setTextColor(mColorAutoCorrect);
        stripView.addView(wordView);
        setLayoutWeight(wordView, 1.0f, mSuggestionsStripHeight);
    }
    mMoreSuggestionsAvailable = (punctuationSuggestions.size() > countInStrip);
    return countInStrip;
}
 

/**
 * Format appropriately the suggested word in {@link #mWordViews} specified by
 * <code>positionInStrip</code>. When the suggested word doesn't exist, the corresponding
 * {@link TextView} will be disabled and never respond to user interaction. The suggested word
 * may be shrunk or ellipsized to fit in the specified width.
 *
 * The <code>positionInStrip</code> argument is the index in the suggestion strip. The indices
 * increase towards the right for LTR scripts and the left for RTL scripts, starting with 0.
 * The position of the most important suggestion is in {@link #mCenterPositionInStrip}. This
 * usually doesn't match the index in <code>suggedtedWords</code> -- see
 * {@link #getPositionInSuggestionStrip(int,SuggestedWords)}.
 *
 * @param positionInStrip the position in the suggestion strip.
 * @param width the maximum width for layout in pixels.
 * @return the {@link TextView} containing the suggested word appropriately formatted.
 */
private TextView layoutWord(final Context context, final int positionInStrip, final int width) {
    final TextView wordView = mWordViews.get(positionInStrip);
    final CharSequence word = wordView.getText();
    if (positionInStrip == mCenterPositionInStrip && mMoreSuggestionsAvailable) {
        // TODO: This "more suggestions hint" should have a nicely designed icon.
        wordView.setCompoundDrawablesWithIntrinsicBounds(
                null, null, null, mMoreSuggestionsHint);
        // HACK: Align with other TextViews that have no compound drawables.
        wordView.setCompoundDrawablePadding(-mMoreSuggestionsHint.getIntrinsicHeight());
    } else {
        wordView.setCompoundDrawablesWithIntrinsicBounds(null, null, null, null);
    }
    // {@link StyleSpan} in a content description may cause an issue of TTS/TalkBack.
    // Use a simple {@link String} to avoid the issue.
    wordView.setContentDescription(
            TextUtils.isEmpty(word)
                ? context.getResources().getString(R.string.spoken_empty_suggestion)
                : word.toString());
    final CharSequence text = getEllipsizedTextWithSettingScaleX(
            word, width, wordView.getPaint());
    final float scaleX = wordView.getTextScaleX();
    wordView.setText(text); // TextView.setText() resets text scale x to 1.0.
    wordView.setTextScaleX(scaleX);
    // A <code>wordView</code> should be disabled when <code>word</code> is empty in order to
    // make it unclickable.
    // With accessibility touch exploration on, <code>wordView</code> should be enabled even
    // when it is empty to avoid announcing as "disabled".
    wordView.setEnabled(!TextUtils.isEmpty(word)
            || AccessibilityUtils.Companion.getInstance().isTouchExplorationEnabled());
    return wordView;
}
 

public void layoutImportantNotice(final View importantNoticeStrip,
        final String importantNoticeTitle) {
    final TextView titleView = 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);
}
 

/**
 * Format appropriately the suggested word in {@link #mWordViews} specified by
 * <code>positionInStrip</code>. When the suggested word doesn't exist, the corresponding
 * {@link TextView} will be disabled and never respond to user interaction. The suggested word
 * may be shrunk or ellipsized to fit in the specified width.
 *
 * The <code>positionInStrip</code> argument is the index in the suggestion strip. The indices
 * increase towards the right for LTR scripts and the left for RTL scripts, starting with 0.
 * The position of the most important suggestion is in {@link #mCenterPositionInStrip}. This
 * usually doesn't match the index in <code>suggedtedWords</code> -- see
 * {@link #getPositionInSuggestionStrip(int,SuggestedWords)}.
 *
 * @param positionInStrip the position in the suggestion strip.
 * @param width the maximum width for layout in pixels.
 * @return the {@link TextView} containing the suggested word appropriately formatted.
 */
private TextView layoutWord(final Context context, final int positionInStrip, final int width) {
    final TextView wordView = mWordViews.get(positionInStrip);
    final CharSequence word = wordView.getText();
    if (positionInStrip == mCenterPositionInStrip && mMoreSuggestionsAvailable) {
        // TODO: This "more suggestions hint" should have a nicely designed icon.
        wordView.setCompoundDrawablesWithIntrinsicBounds(
                null, null, null, mMoreSuggestionsHint);
        // HACK: Align with other TextViews that have no compound drawables.
        wordView.setCompoundDrawablePadding(-mMoreSuggestionsHint.getIntrinsicHeight());
    } else {
        wordView.setCompoundDrawablesWithIntrinsicBounds(null, null, null, null);
    }
    // {@link StyleSpan} in a content description may cause an issue of TTS/TalkBack.
    // Use a simple {@link String} to avoid the issue.
    wordView.setContentDescription(
            TextUtils.isEmpty(word)
                ? context.getResources().getString(R.string.spoken_empty_suggestion)
                : word.toString());
    final CharSequence text = getEllipsizedTextWithSettingScaleX(
            word, width, wordView.getPaint());
    final float scaleX = wordView.getTextScaleX();
    wordView.setText(text); // TextView.setText() resets text scale x to 1.0.
    wordView.setTextScaleX(scaleX);
    // A <code>wordView</code> should be disabled when <code>word</code> is empty in order to
    // make it unclickable.
    // With accessibility touch exploration on, <code>wordView</code> should be enabled even
    // when it is empty to avoid announcing as "disabled".
    wordView.setEnabled(!TextUtils.isEmpty(word)
            || AccessibilityUtils.getInstance().isTouchExplorationEnabled());
    return wordView;
}
 

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);
}
 

/**
 * Format appropriately the suggested word in {@link #mWordViews} specified by
 * <code>positionInStrip</code>. When the suggested word doesn't exist, the corresponding
 * {@link TextView} will be disabled and never respond to user interaction. The suggested word
 * may be shrunk or ellipsized to fit in the specified width.
 *
 * The <code>positionInStrip</code> argument is the index in the suggestion strip. The indices
 * increase towards the right for LTR scripts and the left for RTL scripts, starting with 0.
 * The position of the most important suggestion is in {@link #mCenterPositionInStrip}. This
 * usually doesn't match the index in <code>suggedtedWords</code> -- see
 * {@link #getPositionInSuggestionStrip(int,SuggestedWords)}.
 *
 * @param positionInStrip the position in the suggestion strip.
 * @param width the maximum width for layout in pixels.
 * @return the {@link TextView} containing the suggested word appropriately formatted.
 */
private TextView layoutWord(final Context context, final int positionInStrip, final int width) {
    final TextView wordView = mWordViews.get(positionInStrip);
    final CharSequence word = wordView.getText();
    if (positionInStrip == mCenterPositionInStrip && mMoreSuggestionsAvailable) {
        // TODO: This "more suggestions hint" should have a nicely designed icon.
        wordView.setCompoundDrawablesWithIntrinsicBounds(
                null, null, null, mMoreSuggestionsHint);
        // HACK: Align with other TextViews that have no compound drawables.
        wordView.setCompoundDrawablePadding(-mMoreSuggestionsHint.getIntrinsicHeight());
    } else {
        wordView.setCompoundDrawablesWithIntrinsicBounds(null, null, null, null);
    }
    // {@link StyleSpan} in a content description may cause an issue of TTS/TalkBack.
    // Use a simple {@link String} to avoid the issue.
    wordView.setContentDescription(
            TextUtils.isEmpty(word)
                ? context.getResources().getString(R.string.spoken_empty_suggestion)
                : word.toString());
    final CharSequence text = getEllipsizedTextWithSettingScaleX(
            word, width, wordView.getPaint());
    final float scaleX = wordView.getTextScaleX();
    wordView.setText(text); // TextView.setText() resets text scale x to 1.0.
    wordView.setTextScaleX(scaleX);
    // A <code>wordView</code> should be disabled when <code>word</code> is empty in order to
    // make it unclickable.
    // With accessibility touch exploration on, <code>wordView</code> should be enabled even
    // when it is empty to avoid announcing as "disabled".
    wordView.setEnabled(!TextUtils.isEmpty(word)
            || AccessibilityUtils.getInstance().isTouchExplorationEnabled());
    return wordView;
}
 

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);
}
 

/**
 * Displays the user and OTP for the specified position. For HOTP, displays the button for
 * generating the next OTP value; for TOTP, displays the countdown indicator.
 */
@Override
public View getView(int position, View convertView, ViewGroup parent) {
  LayoutInflater inflater = getLayoutInflater();
  PinInfo currentPin = getItem(position);

  View row;
  if (convertView != null) {
    // Reuse an existing view
    row = convertView;
  } else {
    // Create a new view
    row = inflater.inflate(R.layout.user_row, null);

    // This is a workaround to address the issue on DragSortListView that complex
    // LinearLayout doesn't take the full width.
    // https://github.com/bauerca/drag-sort-listview/issues/73
    row.setLayoutParams(
        new LinearLayout.LayoutParams(
            ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT));
  }

  TextView pinView = row.findViewById(R.id.pin_value);
  TextView userView = row.findViewById(R.id.current_user);
  View buttonView = row.findViewById(R.id.next_otp);
  CountdownIndicator countdownIndicator = row.findViewById(R.id.countdown_icon);

  // We only show drag handle on selected item when the number of items is larger than 1.
  boolean showDragHandle = false;
  try {
    if (getMultiSelectListSingleCheckedItemPosition(userList) == position && getCount() >= 2) {
      showDragHandle = true;
    }
  } catch (IllegalStateException ignored) {
    // No pin code is selected.
  }
  row.findViewById(R.id.user_row_drag_handle_image)
      .setVisibility(showDragHandle ? View.VISIBLE : View.GONE);

  if (currentPin.isHotp()) {
    buttonView.setVisibility(View.VISIBLE);
    buttonView.setEnabled(currentPin.isHotpCodeGenerationAllowed());
    ((ViewGroup) row)
        .setDescendantFocusability(ViewGroup.FOCUS_BLOCK_DESCENDANTS); // makes long press work
    NextOtpButtonListener clickListener = new NextOtpButtonListener(currentPin);
    buttonView.setOnClickListener(clickListener);
    row.setTag(clickListener);

    countdownIndicator.setVisibility(View.GONE);
  } else { // TOTP, so no button needed
    buttonView.setVisibility(View.GONE);
    buttonView.setOnClickListener(null);
    row.setTag(null);

    countdownIndicator.setVisibility(View.VISIBLE);
    countdownIndicator.setPhase(totpCountdownPhase);
  }

  if (getString(R.string.empty_pin).equals(currentPin.getPin())) {
    pinView.setTextScaleX(PIN_TEXT_SCALEX_UNDERSCORE); // smaller gap between underscores
  } else {
    pinView.setTextScaleX(PIN_TEXT_SCALEX_NORMAL);
  }
  pinView.setText(Utilities.getStyledPincode(currentPin.getPin()));
  userView.setText(
      Utilities.getCombinedTextForIssuerAndAccountName(
          currentPin.getIndex().getIssuer(), currentPin.getIndex().getStrippedName()));

  return row;
}