Example usage for android.content.res TypedArray hasValueOrEmpty

Introduction

In this page you can find the example usage for android.content.res TypedArray hasValueOrEmpty.

Prototype

public boolean hasValueOrEmpty(@StyleableRes int index) 

Source Link

Document

Determines whether there is an attribute at index, returning true if the attribute was explicitly set to @empty and false only if the attribute was undefined.

Usage

From source file:com.appeaser.sublimepickerlibrary.timepicker.SublimeTimePicker.java

private void initializeLayout() {
    mContext = getContext();/*  ww w.ja  v  a 2 s .com*/
    setCurrentLocale(Locale.getDefault());

    // process style attributes
    final TypedArray a = mContext.obtainStyledAttributes(R.styleable.SublimeTimePicker);
    final LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    final Resources res = mContext.getResources();

    mSelectHours = res.getString(R.string.select_hours);
    mSelectMinutes = res.getString(R.string.select_minutes);

    DateFormatSymbols dfs = DateFormatSymbols.getInstance(mCurrentLocale);
    String[] amPmStrings = dfs.getAmPmStrings();/*{"AM", "PM"}*/

    if (amPmStrings.length == 2 && !TextUtils.isEmpty(amPmStrings[0]) && !TextUtils.isEmpty(amPmStrings[1])) {
        mAmText = amPmStrings[0].length() > 2 ? amPmStrings[0].substring(0, 2) : amPmStrings[0];
        mPmText = amPmStrings[1].length() > 2 ? amPmStrings[1].substring(0, 2) : amPmStrings[1];
    } else {
        // Defaults
        mAmText = "AM";
        mPmText = "PM";
    }

    final int layoutResourceId = R.layout.time_picker_layout;
    final View mainView = inflater.inflate(layoutResourceId, this);

    mHeaderView = mainView.findViewById(R.id.time_header);

    // Set up hour/minute labels.
    mHourView = (TextView) mainView.findViewById(R.id.hours);
    mHourView.setOnClickListener(mClickListener);

    ViewCompat.setAccessibilityDelegate(mHourView, new ClickActionDelegate(mContext, R.string.select_hours));

    mSeparatorView = (TextView) mainView.findViewById(R.id.separator);

    mMinuteView = (TextView) mainView.findViewById(R.id.minutes);
    mMinuteView.setOnClickListener(mClickListener);

    ViewCompat.setAccessibilityDelegate(mMinuteView,
            new ClickActionDelegate(mContext, R.string.select_minutes));

    // Now that we have text appearances out of the way, make sure the hour
    // and minute views are correctly sized.
    mHourView.setMinWidth(computeStableWidth(mHourView, 24));
    mMinuteView.setMinWidth(computeStableWidth(mMinuteView, 60));

    // Set up AM/PM labels.
    mAmPmLayout = mainView.findViewById(R.id.ampm_layout);
    mAmLabel = (CheckedTextView) mAmPmLayout.findViewById(R.id.am_label);
    mAmLabel.setText(obtainVerbatim(amPmStrings[0]));
    mAmLabel.setOnClickListener(mClickListener);
    mPmLabel = (CheckedTextView) mAmPmLayout.findViewById(R.id.pm_label);
    mPmLabel.setText(obtainVerbatim(amPmStrings[1]));
    mPmLabel.setOnClickListener(mClickListener);

    ColorStateList headerTextColor = a.getColorStateList(R.styleable.SublimeTimePicker_spHeaderTextColor);

    if (headerTextColor != null) {
        mHourView.setTextColor(headerTextColor);
        mSeparatorView.setTextColor(headerTextColor);
        mMinuteView.setTextColor(headerTextColor);
        mAmLabel.setTextColor(headerTextColor);
        mPmLabel.setTextColor(headerTextColor);
    }

    // Set up header background, if available.
    if (SUtils.isApi_22_OrHigher()) {
        if (a.hasValueOrEmpty(R.styleable.SublimeTimePicker_spHeaderBackground)) {
            SUtils.setViewBackground(mHeaderView,
                    a.getDrawable(R.styleable.SublimeTimePicker_spHeaderBackground));
        }
    } else {
        if (a.hasValue(R.styleable.SublimeTimePicker_spHeaderBackground)) {
            SUtils.setViewBackground(mHeaderView,
                    a.getDrawable(R.styleable.SublimeTimePicker_spHeaderBackground));
        }
    }

    a.recycle();

    mRadialTimePickerView = (RadialTimePickerView) mainView.findViewById(R.id.radial_picker);

    setupListeners();

    mAllowAutoAdvance = true;

    // Set up for keyboard mode.
    mDoublePlaceholderText = res.getString(R.string.time_placeholder);
    mDeletedKeyFormat = res.getString(R.string.deleted_key);
    mPlaceholderText = mDoublePlaceholderText.charAt(0);
    mAmKeyCode = mPmKeyCode = -1;
    generateLegalTimesTree();

    // Initialize with current time
    final Calendar calendar = Calendar.getInstance(mCurrentLocale);
    final int currentHour = calendar.get(Calendar.HOUR_OF_DAY);
    final int currentMinute = calendar.get(Calendar.MINUTE);
    initialize(currentHour, currentMinute, false /* 12h */, HOUR_INDEX);
}

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