Example usage for android.view ViewGroup getChildAt

List of usage examples for android.view ViewGroup getChildAt

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Introduction

In this page you can find the example usage for android.view ViewGroup getChildAt.

Prototype

public View getChildAt(int index)

Source Link

Document

Returns the view at the specified position in the group.

Usage

From source file:info.tellmetime.TellmetimeActivity.java

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    setContentView(R.layout.activity_tellmetime);

    mDensity = getResources().getDisplayMetrics().density;
    mScreenWidth = getResources().getDisplayMetrics().widthPixels;
    mScreenHeight = getResources().getDisplayMetrics().heightPixels;
    mShorterEdge = Math.min(mScreenWidth, mScreenHeight);
    mTouchSlop = ViewConfiguration.get(this).getScaledTouchSlop();
    mBacklightLight = getResources().getColor(R.color.backlight_light);
    mBacklightDark = getResources().getColor(R.color.backlight_dark);

    // Restore background and highlight colors from saved values or set defaults.
    mSettings = getSharedPreferences("PREFS", Context.MODE_PRIVATE);
    mHighlightColor = mSettings.getInt(HIGHLIGHT, Color.WHITE);
    mBacklightColor = mSettings.getInt(BACKLIGHT, mBacklightLight);
    mBackgroundColor = mSettings.getInt(BACKGROUND, getResources().getColor(R.color.background));
    mBackgroundMode = mSettings.getInt(BACKGROUND_MODE, MODE_BACKGROUND_SOLID);
    mHighlightPosition = mSettings.getFloat(POSITION, 0.0f);
    mMinutesSize = mSettings.getInt(MINUTES_SIZE, 36);
    isNightMode = mSettings.getBoolean(NIGHTMODE, false);

    // Dim the navigation bar.
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH)
        getWindow().getDecorView().setSystemUiVisibility(isNightMode ? View.SYSTEM_UI_FLAG_LOW_PROFILE : 0);

    mSurface = (RelativeLayout) findViewById(R.id.surface);
    mSurface.setBackgroundColor(mBackgroundColor);

    resizeClock();//from www.  j  a  v a2 s  . co m

    Typeface mTypefaceBold = Typeface.createFromAsset(getAssets(), "Roboto-BoldCondensed.ttf");

    // Set typeface of all items in the clock to Roboto and dim each one and drop shadow on them.
    final LinearLayout mClock = (LinearLayout) findViewById(R.id.clock);
    for (int i = 0; i < mClock.getChildCount(); i++) {
        LinearLayout row = (LinearLayout) mClock.getChildAt(i);

        for (int j = 0; j < row.getChildCount(); j++) {
            TextView tv = (TextView) row.getChildAt(j);

            tv.setTypeface(mTypefaceBold);
            tv.setTextColor(mBacklightColor);
            tv.setShadowLayer(mShorterEdge / 200 * mDensity, 0, 0, mBacklightColor);
        }
    }

    ViewGroup minutesDots = (ViewGroup) findViewById(R.id.minutes_dots);
    for (int i = 0; i < minutesDots.getChildCount(); i++) {
        TextView m = (TextView) minutesDots.getChildAt(i);

        m.setTypeface(mTypefaceBold);
        m.setTextColor(mBacklightColor);
        m.setShadowLayer(mShorterEdge / 200 * mDensity, 0, 0, mBacklightColor);
    }

    // Set Roboto font on TextView where it isn't default.
    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
        Typeface mTypefaceItalic = Typeface.createFromAsset(getAssets(), "Roboto-CondensedItalic.ttf");

        ((TextView) findViewById(R.id.labelBackground)).setTypeface(mTypefaceBold);
        ((TextView) findViewById(R.id.info_background)).setTypeface(mTypefaceItalic);
        ((TextView) findViewById(R.id.info_image)).setTypeface(mTypefaceItalic);
        ((TextView) findViewById(R.id.labelHighlight)).setTypeface(mTypefaceBold);
        ((TextView) findViewById(R.id.labelBackground)).setTypeface(mTypefaceBold);
        ((TextView) findViewById(R.id.radio_backlight_light)).setTypeface(mTypefaceBold);
        ((TextView) findViewById(R.id.radio_backlight_dark)).setTypeface(mTypefaceBold);
        ((TextView) findViewById(R.id.radio_backlight_highlight)).setTypeface(mTypefaceBold);
        ((TextView) findViewById(R.id.labelMinutes)).setTypeface(mTypefaceBold);
        ((TextView) findViewById(R.id.m1)).setTypeface(mTypefaceBold);
        ((TextView) findViewById(R.id.m2)).setTypeface(mTypefaceBold);
        ((TextView) findViewById(R.id.m3)).setTypeface(mTypefaceBold);
        ((TextView) findViewById(R.id.m4)).setTypeface(mTypefaceBold);
    }

    FrameLayout mTouchZone = (FrameLayout) findViewById(R.id.touchZone);
    mTouchZone.setOnTouchListener(this);
    mTouchZone.setBackgroundColor(
            getResources().getColor(isNightMode ? R.color.night_mode_overlay : android.R.color.transparent));

    mBackgroundImage = (ImageView) findViewById(R.id.background_image);
    switchBackgroundMode(mBackgroundMode);

    RelativeLayout mPanel = (RelativeLayout) findViewById(R.id.panel);
    mPanel.setOnTouchListener(new View.OnTouchListener() {
        @Override
        public boolean onTouch(View view, MotionEvent motionEvent) {
            mHider.delayedHide(4000);
            return true;
        }
    });

    mHider = new PanelHider(mPanel, this);

    Spinner spinnerBackgroundMode = (Spinner) findViewById(R.id.spinnerBackgroundMode);
    ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this, R.array.backgrounds_modes,
            android.R.layout.simple_spinner_item);
    adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
    spinnerBackgroundMode.setAdapter(adapter);
    spinnerBackgroundMode.setOnItemSelectedListener(this);
    spinnerBackgroundMode.setOnTouchListener(new View.OnTouchListener() {
        @Override
        public boolean onTouch(View view, MotionEvent motionEvent) {
            mHider.showNoAutoHide();
            return false;
        }
    });
    spinnerBackgroundMode.setSelection(mBackgroundMode);

    mSeekBarHighlight = (SeekBar) findViewById(R.id.highlightValue);
    mSeekBarHighlight.setOnSeekBarChangeListener(this);

    // Draw rainbow gradient on #mSeekBarHighlight and set position.
    drawRainbow();

    if (mBacklightColor == mBacklightLight)
        ((RadioButton) findViewById(R.id.radio_backlight_light)).setChecked(true);
    else if (mBacklightColor == mBacklightDark)
        ((RadioButton) findViewById(R.id.radio_backlight_dark)).setChecked(true);
    else
        ((RadioButton) findViewById(R.id.radio_backlight_highlight)).setChecked(true);

    SeekBar mSeekBarMinutes = (SeekBar) findViewById(R.id.minutesSize);
    mSeekBarMinutes.setOnSeekBarChangeListener(this);
    mSeekBarMinutes.setProgress(mMinutesSize);

    mHider.hideNow();

    Color.colorToHSV(mBackgroundColor, mHSV);
    mHSV[1] = 1.0f;

    //Trigger initial tick.
    mClockAlgorithm.tickTock();

    // Schedule the clock algorithm to tick every round minute.
    Calendar time = Calendar.getInstance();
    time.set(Calendar.MILLISECOND, 0);
    time.set(Calendar.SECOND, 0);
    time.add(Calendar.MINUTE, 1);

    Timer timer = new Timer();
    timer.schedule(mClockTask, time.getTime(), 60 * 1000);

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
        mSurface.setAlpha(0.0f);
        mSurface.animate().alpha(1.0f).setDuration(1500);
    }

    // If it is first run, hint to user that panel is available.
    if (!mSettings.contains(HIGHLIGHT))
        showToast(R.string.info_first_run);
}

From source file:com.aretha.slidemenu.SlideMenu.java

protected final boolean canScroll(View v, int dx, int x, int y) {
    if (null == mScrollDetector) {
        return false;
    }//  w  w  w. jav a2  s.c  o m

    if (v instanceof ViewGroup) {
        final ViewGroup viewGroup = (ViewGroup) v;
        final int scrollX = v.getScrollX();
        final int scrollY = v.getScrollY();

        final int childCount = viewGroup.getChildCount();
        for (int index = 0; index < childCount; index++) {
            View child = viewGroup.getChildAt(index);
            final int left = child.getLeft();
            final int top = child.getTop();
            if (x + scrollX >= left && x + scrollX < child.getRight() && y + scrollY >= top
                    && y + scrollY < child.getBottom()
                    && (mScrollDetector.isScrollable(child, dx, x + scrollX - left, y + scrollY - top)
                            || canScroll(child, dx, x + scrollX - left, y + scrollY - top))) {
                return true;
            }
        }
    }

    return ViewCompat.canScrollHorizontally(v, -dx);
}

From source file:com.aigo.kt03airdemo.ui.view.ResideLayout.java

private View findViewAtPosition(View parent, int x, int y) {
    if (parent instanceof ViewPager) {
        Rect rect = new Rect();
        parent.getGlobalVisibleRect(rect);
        if (rect.contains(x, y)) {
            return parent;
        }/*  ww w .  j av a  2  s. c  o m*/
    } else if (parent instanceof ViewGroup) {
        ViewGroup viewGroup = (ViewGroup) parent;
        final int length = viewGroup.getChildCount();
        for (int i = 0; i < length; i++) {
            View child = viewGroup.getChildAt(i);
            View viewAtPosition = findViewAtPosition(child, x, y);
            if (viewAtPosition != null) {
                return viewAtPosition;
            }
        }
        return null;
    }
    return null;
}

From source file:com.eleybourn.bookcatalogue.utils.Utils.java

/**
 * Passed a parent view, add it and all children view (if any) to the passed collection
 * //  w  ww . j  ava2 s. c o  m
 * @param p      Parent View
 * @param vh   Collection
 */
private static void getViews(View p, Hashtable<Integer, View> vh) {
    // Get the view ID and add it to collection if not already present.
    final int id = p.getId();
    if (id != View.NO_ID && !vh.containsKey(id)) {
        vh.put(id, p);
    }
    // If it's a ViewGroup, then process children recursively.
    if (p instanceof ViewGroup) {
        final ViewGroup g = (ViewGroup) p;
        final int nChildren = g.getChildCount();
        for (int i = 0; i < nChildren; i++) {
            getViews(g.getChildAt(i), vh);
        }
    }

}

From source file:com.xgf.inspection.qrcode.google.zxing.client.CaptureActivity.java

private void handleDecodeInternally(Result rawResult, ResultHandler resultHandler, Bitmap barcode) {
    statusView.setVisibility(View.GONE);
    viewfinderView.setVisibility(View.GONE);
    resultView.setVisibility(View.VISIBLE);

    ImageView barcodeImageView = (ImageView) findViewById(R.id.barcode_image_view);
    if (barcode == null) {
        barcodeImageView.setImageBitmap(BitmapFactory.decodeResource(getResources(), R.drawable.qr_scan));
    } else {// ww  w . j  a va 2 s. c o  m
        barcodeImageView.setImageBitmap(barcode);
    }

    TextView formatTextView = (TextView) findViewById(R.id.format_text_view);
    formatTextView.setText(rawResult.getBarcodeFormat().toString());

    TextView typeTextView = (TextView) findViewById(R.id.type_text_view);
    typeTextView.setText(resultHandler.getType().toString());

    DateFormat formatter = DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.SHORT);
    String formattedTime = formatter.format(new Date(rawResult.getTimestamp()));
    TextView timeTextView = (TextView) findViewById(R.id.time_text_view);
    timeTextView.setText(formattedTime);

    TextView metaTextView = (TextView) findViewById(R.id.meta_text_view);
    View metaTextViewLabel = findViewById(R.id.meta_text_view_label);
    metaTextView.setVisibility(View.GONE);
    metaTextViewLabel.setVisibility(View.GONE);
    Map<ResultMetadataType, Object> metadata = rawResult.getResultMetadata();
    if (metadata != null) {
        StringBuilder metadataText = new StringBuilder(20);
        for (Map.Entry<ResultMetadataType, Object> entry : metadata.entrySet()) {
            if (DISPLAYABLE_METADATA_TYPES.contains(entry.getKey())) {
                metadataText.append(entry.getValue()).append('\n');
            }
        }
        if (metadataText.length() > 0) {
            metadataText.setLength(metadataText.length() - 1);
            metaTextView.setText(metadataText);
            metaTextView.setVisibility(View.VISIBLE);
            metaTextViewLabel.setVisibility(View.VISIBLE);
        }
    }

    TextView contentsTextView = (TextView) findViewById(R.id.contents_text_view);
    CharSequence displayContents = resultHandler.getDisplayContents();
    contentsTextView.setText(displayContents);
    // Crudely scale betweeen 22 and 32 -- bigger font for shorter text
    int scaledSize = Math.max(22, 32 - displayContents.length() / 4);
    contentsTextView.setTextSize(TypedValue.COMPLEX_UNIT_SP, scaledSize);

    TextView supplementTextView = (TextView) findViewById(R.id.contents_supplement_text_view);
    supplementTextView.setText("");
    supplementTextView.setOnClickListener(null);
    if (PreferenceManager.getDefaultSharedPreferences(this).getBoolean(PreferencesActivity.KEY_SUPPLEMENTAL,
            true)) {
        SupplementalInfoRetriever.maybeInvokeRetrieval(supplementTextView, resultHandler.getResult(),
                historyManager, this);
    }

    int buttonCount = resultHandler.getButtonCount();
    ViewGroup buttonView = (ViewGroup) findViewById(R.id.result_button_view);
    buttonView.requestFocus();
    for (int x = 0; x < ResultHandler.MAX_BUTTON_COUNT; x++) {
        TextView button = (TextView) buttonView.getChildAt(x);
        if (x < buttonCount) {
            button.setVisibility(View.VISIBLE);
            button.setText(resultHandler.getButtonText(x));
            button.setOnClickListener(new ResultButtonListener(resultHandler, x));
        } else {
            button.setVisibility(View.GONE);
        }
    }

    if (copyToClipboard && !resultHandler.areContentsSecure()) {
        ClipboardManager clipboard = (ClipboardManager) getSystemService(CLIPBOARD_SERVICE);
        if (displayContents != null) {
            clipboard.setText(displayContents);
        }
    }
}

From source file:android.support.transition.TransitionPort.java

/**
 * Recursive method which captures values for an entire view hierarchy,
 * starting at some root view. Transitions without targetIDs will use this
 * method to capture values for all possible views.
 *
 * @param view  The view for which to capture values. Children of this View
 *              will also be captured, recursively down to the leaf nodes.
 * @param start true if values are being captured in the start scene, false
 *              otherwise./*  w w w  . j a  v a 2 s  . c  om*/
 */
private void captureHierarchy(View view, boolean start) {
    if (view == null) {
        return;
    }
    boolean isListViewItem = false;
    if (view.getParent() instanceof ListView) {
        isListViewItem = true;
    }
    if (isListViewItem && !((ListView) view.getParent()).getAdapter().hasStableIds()) {
        // ignore listview children unless we can track them with stable IDs
        return;
    }
    int id = View.NO_ID;
    long itemId = View.NO_ID;
    if (!isListViewItem) {
        id = view.getId();
    } else {
        ListView listview = (ListView) view.getParent();
        int position = listview.getPositionForView(view);
        itemId = listview.getItemIdAtPosition(position);
        //            view.setHasTransientState(true);
    }
    if (mTargetIdExcludes != null && mTargetIdExcludes.contains(id)) {
        return;
    }
    if (mTargetExcludes != null && mTargetExcludes.contains(view)) {
        return;
    }
    if (mTargetTypeExcludes != null && view != null) {
        int numTypes = mTargetTypeExcludes.size();
        for (int i = 0; i < numTypes; ++i) {
            if (mTargetTypeExcludes.get(i).isInstance(view)) {
                return;
            }
        }
    }
    TransitionValues values = new TransitionValues();
    values.view = view;
    if (start) {
        captureStartValues(values);
    } else {
        captureEndValues(values);
    }
    if (start) {
        if (!isListViewItem) {
            mStartValues.viewValues.put(view, values);
            if (id >= 0) {
                mStartValues.idValues.put((int) id, values);
            }
        } else {
            mStartValues.itemIdValues.put(itemId, values);
        }
    } else {
        if (!isListViewItem) {
            mEndValues.viewValues.put(view, values);
            if (id >= 0) {
                mEndValues.idValues.put((int) id, values);
            }
        } else {
            mEndValues.itemIdValues.put(itemId, values);
        }
    }
    if (view instanceof ViewGroup) {
        // Don't traverse child hierarchy if there are any child-excludes on this view
        if (mTargetIdChildExcludes != null && mTargetIdChildExcludes.contains(id)) {
            return;
        }
        if (mTargetChildExcludes != null && mTargetChildExcludes.contains(view)) {
            return;
        }
        if (mTargetTypeChildExcludes != null && view != null) {
            int numTypes = mTargetTypeChildExcludes.size();
            for (int i = 0; i < numTypes; ++i) {
                if (mTargetTypeChildExcludes.get(i).isInstance(view)) {
                    return;
                }
            }
        }
        ViewGroup parent = (ViewGroup) view;
        for (int i = 0; i < parent.getChildCount(); ++i) {
            captureHierarchy(parent.getChildAt(i), start);
        }
    }
}

From source file:com.gdgl.util.SlideMenu.java

/**
 * Detect whether the views inside content are slidable
 *///  ww  w .jav  a2  s  . c o  m
protected final boolean canScroll(View v, int dx, int x, int y) {
    if (v instanceof ViewGroup) {
        final ViewGroup viewGroup = (ViewGroup) v;
        final int scrollX = v.getScrollX();
        final int scrollY = v.getScrollY();

        final int childCount = viewGroup.getChildCount();
        for (int index = 0; index < childCount; index++) {
            View child = viewGroup.getChildAt(index);
            final int left = child.getLeft();
            final int top = child.getTop();
            if (x + scrollX >= left && x + scrollX < child.getRight() && y + scrollY >= top
                    && y + scrollY < child.getBottom() && View.VISIBLE == child.getVisibility()
                    && (ScrollDetectors.canScrollHorizontal(child, dx)
                            || canScroll(child, dx, x + scrollX - left, y + scrollY - top))) {
                return true;
            }
        }
    }

    return ViewCompat.canScrollHorizontally(v, -dx);
}

From source file:com.hynet.mergepay.components.widget.panellayout.ViewDragHelper.java

protected boolean canScroll(View v, boolean checkV, int dx, int dy, int x, int y) {
    if (v instanceof ViewGroup) {
        final ViewGroup group = (ViewGroup) v;
        final int scrollX = v.getScrollX();
        final int scrollY = v.getScrollY();
        final int count = group.getChildCount();
        // Count backwards - let topmost views consume scroll distance first.
        for (int i = count - 1; i >= 0; i--) {
            // TODO: Add versioned support here for transformed views.
            // This will not work for transformed views in Honeycomb+
            final View child = group.getChildAt(i);
            if (x + scrollX >= child.getLeft() && x + scrollX < child.getRight()
                    && y + scrollY >= child.getTop() && y + scrollY < child.getBottom() && canScroll(child,
                            true, dx, dy, x + scrollX - child.getLeft(), y + scrollY - child.getTop())) {
                return true;
            }//from w ww . j av  a2s .  co m
        }
    }

    return checkV && (ViewCompat.canScrollHorizontally(v, -dx) || ViewCompat.canScrollVertically(v, -dy));
}

From source file:info.staticfree.android.units.Units.java

/**
 * @param vg Given a view group with view groups inside it, set all children to have the same onClickListeners.
 * @param onClickListener//from w ww  .j av  a  2 s.co  m
 * @param onLongClickListener
 */
private void setGridChildrenListener(ViewGroup vg, OnClickListener onClickListener,
        OnLongClickListener onLongClickListener) {
    // Go through the children and add all the onClick listeners.
    // Make sure to update if the layout changes.
    final int rows = vg.getChildCount();
    for (int row = 0; row < rows; row++) {
        final ViewGroup v = (ViewGroup) vg.getChildAt(row);
        final int columns = v.getChildCount();
        for (int column = 0; column < columns; column++) {
            final View button = v.getChildAt(column);
            button.setOnClickListener(onClickListener);
            button.setOnLongClickListener(onLongClickListener);
        }
    }
}