Java Code Examples for android.graphics.Color

/**
 * 为 DrawerLayout 布局设置状态栏透明
 *
 * @param activity     需要设置的activity
 * @param drawerLayout DrawerLayout
 */
public static void setTransparentForDrawerLayout(Activity activity, DrawerLayout drawerLayout) {
    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
        return;
    }
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
        activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
        activity.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
        activity.getWindow().setStatusBarColor(Color.TRANSPARENT);
    } else {
        activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
    }

    ViewGroup contentLayout = (ViewGroup) drawerLayout.getChildAt(0);
    // 内容布局不是 LinearLayout 时,设置padding top
    if (!(contentLayout instanceof LinearLayout) && contentLayout.getChildAt(1) != null) {
        contentLayout.getChildAt(1).setPadding(0, getStatusBarHeight(activity), 0, 0);
    }

    // 设置属性
    setDrawerLayoutProperty(drawerLayout, contentLayout);
}
 

@Override
public void onBindContentView() {
    if (element != null) {
        textView.setText(element.getContent());
        if (element.getColor() != null) {
            try {
                textView.setTextColor(Color.parseColor("#" + element.getColor()));
            } catch (IllegalArgumentException e) {
                e.printStackTrace();
            }
        } else if (color != -1) {
            textView.setTextColor(color);
        }
    } else if (!TextUtils.isEmpty(content)) {
        textView.setText(content);
    }
}
 

@Override
public void bindDataToItem(int index,
                           View itemView,
                           View detailsView,
                           ImageView imageViewOrAvatar,
                           ImageButton imageButton,
                           TextView... txt) {
    DummyObject current = (DummyObject) objects[index];

    itemView.setBackgroundColor(Color.parseColor("#F3F3F3"));

    Picasso.with(getActivity()).load((Integer) current.getAvatar()).into(imageViewOrAvatar);

    txt[0].setText(current.getName());          //1st text view's text
    txt[1].setText(current.getDescription());   //2nd

    imageButton.setImageDrawable(ContextCompat.getDrawable(getActivity(), IMAGE_BUTTON_RESID));

}
 

private void drawPlot(Canvas canvas, int width) {
  float step = 10*(_drawableAreaHeight/((float)FULL_SCALE));
  float lineLevel = PADDING_TOP + _drawableAreaHeight;
  float left = PADDING_LEFT + _drawableAreaWidth/2 - 60;
  float right = PADDING_LEFT + _drawableAreaWidth/2 + 100;
  for (int i=0; i< FULL_SCALE/10 + 1; i++) {
    paint.setColor(Color.BLACK);
    if (i*10 == NOISE_THRESHOLD || i*10 == CLIPPING_THRESHOLD) {
      paint.setStrokeWidth(3.0f);
      canvas.drawLine(left, lineLevel, right, lineLevel, paint);
      paint.setStrokeWidth(0);
    } else {
      canvas.drawLine(left, lineLevel, right, lineLevel, paint);
    }
    if (i%2 == 0) {
      paint.setTextAlign(Paint.Align.RIGHT);
      canvas.drawText(Integer.toString(i*10), left - 10, lineLevel, paint);
    } else {
      paint.setTextAlign(Paint.Align.LEFT);
      canvas.drawText(Integer.toString(i*10), right + 10, lineLevel, paint);
    }
    lineLevel = lineLevel - step;
  }
}
 

public void prepare()
{
    super.prepare();
    loadFingers();
    highlightColour = Color.RED;
    backgroundColour = Color.argb(255,0,243,243);
    sharedLock = new ReentrantLock();
    sharedCondition = sharedLock.newCondition();
    pageNo = 0;
    if (parameters.get("page") != null)
        pageNo = Integer.parseInt(parameters.get("page"));
    doArrowDemo = !OBUtils.coalesce(parameters.get("arrowdemo"),"true").equals("false");
    initialised = true;
    paragraphs = loadPageXML(getLocalPath("book.xml"));
    loadTemplate();
    int i = 1;
    for (OBReadingPara para : paragraphs)
    {
        loadTimingsPara(para,getLocalPath(String.format("p%d_%d.etpa",pageNo,i)),false);
        loadTimingsPara(para,getLocalPath(String.format("ps%d_%d.etpa",pageNo,i)),true);
        i++;
    }
    //setButtons();
    setUpScene();
}
 

protected void setStatusBarColor(ViewGroup drawerLayout) {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
        return;
    }
    if (isFullScreenMode())
        return;
    TypedArray a = getTheme().obtainStyledAttributes(new int[]{R.attr.colorPrimary});
    int color = a.getColor(0, Color.TRANSPARENT);
    a.recycle();

    if (drawerLayout != null) {
        StatusBarUtil.setColorForDrawerLayout(this, drawerLayout, color, 0);
    } else {
        StatusBarUtil.setColor(this, color, 0);
    }
}
 

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    switch(item.getItemId()) {
        case android.R.id.home:
            finish();
            return true;
        case R.id.action_add_snackbar:
            SnackbarManager.show(
                    Snackbar.with(SnackbarRecyclerViewSampleActivity.this)
                            .text("Woo, snackbar!")
                            .actionLabel("Close")
                            .actionColor(Color.parseColor("#FF8A80"))
                            .duration(Snackbar.SnackbarDuration.LENGTH_LONG)
                            .attachToRecyclerView(mRecyclerView));
            return true;
        default:
            return super.onOptionsItemSelected(item);
    }
}
 

public BorderCircleView(Context context, AttributeSet attrs, int defStyleAttr) {
    super(context, attrs, defStyleAttr);

    if (isClickable()) {
        setForeground(ViewUtils.getSelectableBackground(context));
    }
    mCheck = ContextCompat.getDrawable(context, R.drawable.ic_done);
    DrawableCompat.setTint(mCheck, Color.WHITE);

    mPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
    mPaint.setColor(ViewUtils.getThemeAccentColor(context));

    mPaintBorder = new Paint(Paint.ANTI_ALIAS_FLAG);
    mPaintBorder.setColor(ViewUtils.getColorPrimaryColor(context));
    mPaintBorder.setStrokeWidth((int) getResources().getDimension(R.dimen.circleview_border));
    mPaintBorder.setStyle(Paint.Style.STROKE);

    setWillNotDraw(false);
}
 

private ColorCircle findNearestByColor(int color) {
	float[] hsv = new float[3];
	Color.colorToHSV(color, hsv);
	ColorCircle near = null;
	double minDiff = Double.MAX_VALUE;
	double x = hsv[1] * Math.cos(hsv[0] * Math.PI / 180);
	double y = hsv[1] * Math.sin(hsv[0] * Math.PI / 180);

	for (ColorCircle colorCircle : renderer.getColorCircleList()) {
		float[] hsv1 = colorCircle.getHsv();
		double x1 = hsv1[1] * Math.cos(hsv1[0] * Math.PI / 180);
		double y1 = hsv1[1] * Math.sin(hsv1[0] * Math.PI / 180);
		double dx = x - x1;
		double dy = y - y1;
		double dist = dx * dx + dy * dy;
		if (dist < minDiff) {
			minDiff = dist;
			near = colorCircle;
		}
	}

	return near;
}
 

/**
 * <b>private void initializeViews()</b>
 * <p>This function is used to initialize required views.</p>
 * Created by - Rohit
 */
private void initializeViews() {
    btnTryAgain = ((Button) progressLayout.findViewById(R.id.btnTryAgain));
    btnTryAgain.setVisibility(View.GONE);
    pbLoading = ((ProgressBar) progressLayout.findViewById(R.id.progressBar));
    pbLoading.getIndeterminateDrawable().setColorFilter(ContextCompat.getColor(mContext, mProgressBarColor),
            android.graphics.PorterDuff.Mode.MULTIPLY);
    pbLoading.setVisibility(View.GONE);

    tvApiError = ((TextView) progressLayout.findViewById(R.id.tvApiError));
    tvApiError.setVisibility(View.GONE);
    ivCancel = (ImageView) progressLayout.findViewById(R.id.imgCancel);
    ivCancel.setVisibility(View.GONE);
    tvEnableNetwork = (TextView) progressLayout.findViewById(R.id.tvEnableNetwork);
    tvEnableNetwork.setVisibility(View.GONE);
    RelativeLayout rlBaseLayout = (RelativeLayout) progressLayout.findViewById(R.id.rl_base_layout);
    if (isTransparent) {
        rlBaseLayout.setBackgroundColor(Color.TRANSPARENT);
    } else {
        rlBaseLayout.setBackgroundColor(Color.WHITE);
    }
}
 

private Bitmap textAsBitmap(String text, float textSize, int textColor, Typeface typeface) {
  Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
  paint.setTextSize(textSize);
  paint.setColor(textColor);
  paint.setAlpha(255);
  if (typeface != null) paint.setTypeface(typeface);
  paint.setTextAlign(Paint.Align.LEFT);

  float baseline = -paint.ascent(); // ascent() is negative
  int width = (int) (paint.measureText(text) + 0.5f); // round
  int height = (int) (baseline + paint.descent() + 0.5f);
  Bitmap image = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
  Canvas canvas = new Canvas(image);
  canvas.drawColor(Color.TRANSPARENT, PorterDuff.Mode.CLEAR);

  canvas.drawText(text, 0, baseline, paint);
  return image;
}
 

/**
 * 初始化android 5.0以上状态栏和导航栏
 *
 * @param uiFlags the ui flags
 * @return the int
 */
@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
private int initBarAboveLOLLIPOP(int uiFlags) {
    uiFlags |= View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN;  //Activity全屏显示，但状态栏不会被隐藏覆盖，状态栏依然可见，Activity顶端布局部分会被状态栏遮住。
    if (mBarParams.fullScreen && mBarParams.navigationBarEnable) {
        uiFlags |= View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION; //Activity全屏显示，但导航栏不会被隐藏覆盖，导航栏依然可见，Activity底部布局部分会被导航栏遮住。
    }
    mWindow.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
    if (mConfig.hasNavigtionBar()) {  //判断是否存在导航栏
        mWindow.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
    }
    mWindow.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);  //需要设置这个才能设置状态栏颜色
    if (mBarParams.statusBarFlag)
        mWindow.setStatusBarColor(ColorUtils.blendARGB(mBarParams.statusBarColor,
                mBarParams.statusBarColorTransform, mBarParams.statusBarAlpha));  //设置状态栏颜色
    else
        mWindow.setStatusBarColor(ColorUtils.blendARGB(mBarParams.statusBarColor,
                Color.TRANSPARENT, mBarParams.statusBarAlpha));  //设置状态栏颜色
    if (mBarParams.navigationBarEnable)
        mWindow.setNavigationBarColor(ColorUtils.blendARGB(mBarParams.navigationBarColor,
                mBarParams.navigationBarColorTransform, mBarParams.navigationBarAlpha));  //设置导航栏颜色
    return uiFlags;
}
 

/**
 * 初始化绘图变量
 */
private void init() {
    this.mHolder = getHolder();
    this.mHolder.addCallback(this);
    this.mHolder.setFormat(PixelFormat.TRANSPARENT);
    setZOrderOnTop(true);
    setZOrderMediaOverlay(true);
    this.mPaint = new Paint();
    this.mPaint.setAntiAlias(true);
    this.mPaint.setColor(Color.WHITE);
    this.mPaint.setStyle(Paint.Style.FILL_AND_STROKE);
    this.mPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.CLEAR));
    this.mPaintLine = new Paint();
    this.mPaintLine.setColor(Color.BLUE);
    this.mPaintLine.setStrokeWidth(5.0F);

    this.mTextPaint = new Paint();
    this.mTextPaint.setColor(Color.WHITE);
    this.mTextPaint.setStrokeWidth(3.0F);

    setKeepScreenOn(true);
}
 

/**
 * Creates a {@link CompositorView}. This can be called only after the native library is
 * properly loaded.
 * @param c        The Context to create this {@link CompositorView} in.
 * @param host     The renderer host owning this view.
 */
public CompositorView(Context c, LayoutRenderHost host) {
    super(c);
    mRenderHost = host;

    mCompositorSurfaceManager = new CompositorSurfaceManager(this, this);

    // Cover the black surface before it has valid content.  Set this placeholder view to
    // visible, but don't yet make SurfaceView visible, in order to delay
    // surfaceCreate/surfaceChanged calls until the native library is loaded.
    setBackgroundColor(Color.WHITE);
    super.setVisibility(View.VISIBLE);

    // Request the opaque surface.  We might need the translucent one, but
    // we don't know yet.  We'll switch back later if we discover that
    // we're on a low memory device that always uses translucent.
    mCompositorSurfaceManager.requestSurface(PixelFormat.OPAQUE);
}
 

/**
 * Creates a new drawable, which allows to display the number of tabs, which are currently
 * contained by a {@link TabSwitcher}.
 *
 * @param context
 *         The context, which should be used by the drawable, as an instance of the class {@link
 *         Context}. The context may not be null
 */
public TabSwitcherDrawable(@NonNull final Context context) {
    Condition.INSTANCE.ensureNotNull(context, "The context may not be null");
    Resources resources = context.getResources();
    size = resources.getDimensionPixelSize(R.dimen.tab_switcher_drawable_size);
    textSizeNormal =
            resources.getDimensionPixelSize(R.dimen.tab_switcher_drawable_font_size_normal);
    textSizeSmall =
            resources.getDimensionPixelSize(R.dimen.tab_switcher_drawable_font_size_small);
    background = ContextCompat.getDrawable(context, R.drawable.tab_switcher_drawable_background)
            .mutate();
    paint = new Paint(Paint.ANTI_ALIAS_FLAG);
    paint.setColor(Color.WHITE);
    paint.setTextAlign(Align.CENTER);
    paint.setTextSize(textSizeNormal);
    paint.setTypeface(Typeface.create(Typeface.SANS_SERIF, Typeface.BOLD));
    label = Integer.toString(0);
    int tint = ThemeUtil.getColor(context, android.R.attr.textColorPrimary);
    setColorFilter(tint, PorterDuff.Mode.MULTIPLY);
}
 

/**
 * 画圆点
 * @param canvas
 */
public void drawPoints(Canvas canvas, Line line, Axis axisY, int moveX) {
    if (line != null && line.isHasPoints() && isShow) {
        List<PointValue> values = line.getValues();
        float radius = LeafUtil.dp2px(mContext, line.getPointRadius());
        float strokeWidth = LeafUtil.dp2px(mContext, 1);
        PointValue point;
        canvas.save(Canvas.CLIP_SAVE_FLAG);
        canvas.clipRect(axisY.getStartX(), 0, mWidth, mHeight);
        for (int i = 0, size = values.size(); i < size; i++) {
            point = values.get(i);
            labelPaint.setStyle(Paint.Style.FILL);
            labelPaint.setColor(line.getPointColor());
            canvas.drawCircle(point.getOriginX() + moveX, point.getOriginY(),
                    radius , labelPaint);
            labelPaint.setStyle(Paint.Style.STROKE);
            labelPaint.setColor(Color.WHITE);
            labelPaint.setStrokeWidth(strokeWidth);
            canvas.drawCircle(point.getOriginX() + moveX, point.getOriginY(),
                    radius , labelPaint);
        }
        canvas.restore();
    }
}
 

private void initialize(Context context, AttributeSet attrs) {
    TypedArray ta = context.obtainStyledAttributes(attrs, R.styleable.RingProgressBar);
    // 获取自定义属性值或默认值
    progressMax = ta.getInteger(R.styleable.RingProgressBar_progressMax, 100);
    dotColor = ta.getColor(R.styleable.RingProgressBar_dotColor, Color.WHITE);
    dotBgColor = ta.getColor(R.styleable.RingProgressBar_dotBgColor, Color.GRAY);
    showMode = ta.getInt(R.styleable.RingProgressBar_showMode, ProgressBarUtils.RingShowMode.SHOW_MODE_PERCENT);

    if (showMode != ProgressBarUtils.RingShowMode.SHOW_MODE_NULL) {
        percentTextSize = ta.getDimension(R.styleable.RingProgressBar_percentTextSize, ProgressBarUtils.dp2px(context,30));
        percentTextColor = ta.getInt(R.styleable.RingProgressBar_percentTextColor, Color.WHITE);
        percentThinPadding = ta.getInt(R.styleable.RingProgressBar_percentThinPadding, 0);

        unitText = ta.getString(R.styleable.RingProgressBar_unitText);
        unitTextSize = ta.getDimension(R.styleable.RingProgressBar_unitTextSize, percentTextSize);
        unitTextColor = ta.getInt(R.styleable.RingProgressBar_unitTextColor, Color.BLACK);
        unitTextAlignMode = ta.getInt(R.styleable.RingProgressBar_unitTextAlignMode, UNIT_TEXT_ALIGN_MODE_DEFAULT);

        if (unitText == null) {
            unitText = "%";
        }
    }
    ta.recycle();
}
 

public LineChartRenderer(LineDataProvider chart, ChartAnimator animator,
                         ViewPortHandler viewPortHandler) {
    super(animator, viewPortHandler);
    mChart = chart;

    mCirclePaintInner = new Paint(Paint.ANTI_ALIAS_FLAG);
    mCirclePaintInner.setStyle(Paint.Style.FILL);
    mCirclePaintInner.setColor(Color.WHITE);
}
 

@Override
protected void onClick() {
    int[] colors = mColors.length != 0 ? mColors : new int[] {
            Color.BLACK, Color.WHITE, Color
            .RED, Color.GREEN, Color.BLUE
    };
    ColorPickerDialog d = ColorPickerDialog.newInstance(mTitle,
            colors, mCurrentValue, mColumns,
            ColorPickerDialog.SIZE_SMALL, mBackwardsOrder,
            mStrokeWidth, mStrokeColor);
    d.setOnColorSelectedListener(this);
    d.show(((Activity) getContext()).getFragmentManager(), null);
}
 

public static Object addShadow(ViewGroup shadowContainer, boolean roundedCorners) {
    initializeResources(shadowContainer.getResources());
    if (roundedCorners) {
        RoundedRectHelperApi21.setRoundedRectBackground(shadowContainer,
                Color.TRANSPARENT);
    } else {
        shadowContainer.setOutlineProvider(sOutlineProvider);
    }
    shadowContainer.setZ(sNormalZ);
    shadowContainer.setTransitionGroup(true);
    return shadowContainer;
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    Toolbar toolbar = ButterKnife.findById(this, R.id.my_awesome_toolbar);
    setSupportActionBar(toolbar);
    materialMenu = new MaterialMenuIconToolbar(this, Color.WHITE, MaterialMenuDrawable.Stroke.REGULAR) {
        @Override public int getToolbarViewId() {
            return R.id.my_awesome_toolbar;
        }
    };
    getSupportFragmentManager().beginTransaction().replace(R.id.container_play_ctrl_bar, PlayCtrlBarFragment.instance())
            .commitAllowingStateLoss();
}
 

@Override
protected void initDrawingTools() {
	radarCirclePaint = new Paint();
	radarCirclePaint.setAntiAlias(true);
	radarCirclePaint.setStyle(Paint.Style.STROKE);
	radarCirclePaint.setStrokeWidth(0.05f);
	radarCirclePaint.setShader(new LinearGradient(0.40f, 0.0f, 0.60f, 1.0f,
			Color.rgb(0xf0, 0xf5, 0xf0), Color.rgb(0x30, 0x31, 0x30),
			Shader.TileMode.CLAMP));

	radarOvalPaint = new Paint();
	radarOvalPaint.setAntiAlias(true);
	radarOvalPaint.setStyle(Paint.Style.FILL);
	radarOvalPaint.setColor(Color.argb(100, 0, 0, 200));
}
 

public static Bitmap getPreviewBitmap(float density, String colorStr) {
    int color = Color.GRAY;
    try {
        color = Color.parseColor(colorStr);
    } catch (Exception e) {
    }
    return getPreviewBitmap(density, color);
}
 

/**
 * Makes a new view that combines itemView and swipeLeftView to hold the
 * data pointed to by position.
 *
 * @param context  Interface to application's global information
 * @param position The position from which to get the data.
 * @param parent   The View to which the new view is attached to
 * @return
 */
private View newView(Context context, int position, ViewGroup parent) {
    // get a new itemView and init it.
    View itemView = newItemView(context, position, parent);
    if (itemView == null)
        throw new IllegalStateException("the itemView can't be null!");

    // set a tag for the itemMainView which is used in CustomSwipeListView.
    itemView.setTag(CustomSwipeListView.ITEMMAIN_LAYOUT_TAG);
    // itemLayout indicates the outermost layout of the new view.
    RelativeLayout itemLayout = new RelativeLayout(context);
    itemLayout.setLayoutParams(new AbsListView.LayoutParams(
            itemView.getLayoutParams().width, itemView.getLayoutParams().height));
    itemLayout.addView(itemView);

    // get a new swipeLeftView and init it.
    View swipeLeftView = newSwipeLeftView(context, position, parent);
    if (swipeLeftView == null)
        return itemLayout;

    // set a tag for the swipeLeftView which is used in CustomSwipeListView.
    swipeLeftView.setTag(CustomSwipeListView.ITEMSWIPE_LAYOUT_TAG);
    swipeLeftView.setVisibility(View.GONE);

    // itemSwipeLeftLayout indicates the layout of the swipeLeftView.
    RelativeLayout itemSwipeLeftLayout = new RelativeLayout(context);
    itemSwipeLeftLayout.setLayoutParams(new AbsListView.LayoutParams(
            itemView.getLayoutParams().width, itemView.getLayoutParams().height));
    itemSwipeLeftLayout.setHorizontalGravity(Gravity.END);
    itemSwipeLeftLayout.setBackgroundColor(Color.TRANSPARENT);
    itemSwipeLeftLayout.addView(swipeLeftView);
    itemLayout.addView(itemSwipeLeftLayout);
    return itemLayout;
}
 

@Override
public int getAvatarBackgroundColor() {
	if (type == Message.TYPE_STATUS && getCounterparts() != null && getCounterparts().size() > 1) {
		return Color.TRANSPARENT;
	} else {
		return UIHelper.getColorForName(UIHelper.getMessageDisplayName(this));
	}
}
 

private void init() {
    mCirclePaint = new Paint();
    mCirclePaint.setAntiAlias(true);
    mCirclePaint.setColor(Color.parseColor("#ffffff"));
    mCirclePaint.setAlpha(200);

    mMaskPaint = new Paint();
    mMaskPaint.setAntiAlias(true);
    mMaskPaint.setColor(Color.parseColor("#40000000"));

    mBitmapPaint = new Paint();
    mBitmapPaint.setAntiAlias(true);

    mTextPaint = new Paint();
    mTextPaint.setAntiAlias(true);
    mTextPaint.setColor(Color.parseColor("#90000000"));
    mTextPaint.setTextSize(sp(12));
    mTextPaint.setTypeface(Typeface.DEFAULT_BOLD);
    rectF = new RectF();

    mSelectPaint = new Paint();
    mSelectPaint.setAntiAlias(true);
    mSelectPaint.setStrokeWidth(dp(4));
    mSelectPaint.setStyle(Paint.Style.STROKE);

    try {
        videoBitmap = ((BitmapDrawable) getResources().getDrawable(R.mipmap.picker_item_video)).getBitmap();
    } catch (Exception ignored) {

    }
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    pager = (ViewPager) findViewById(R.id.pager);
    tabLayout = (TabLayout) findViewById(R.id.tab_layout);
    pager.setAdapter(new ExcelPagerAdapter(getSupportFragmentManager()));
    tabLayout.setupWithViewPager(pager);
    tabLayout.setTabTextColors(Color.WHITE,Color.WHITE);
}
 

public AppIconView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
    super(context, attrs, defStyleAttr);
    paint = new Paint();
    paint.setAntiAlias(true);
    paint.setColor(Color.parseColor("#212121"));
    paint.setDither(true);

    animator = ValueAnimator.ofFloat(bgScale, 0.8f);
    animator.setInterpolator(new OvershootInterpolator());
    animator.setDuration(750);
    animator.setStartDelay(250);
    animator.addUpdateListener(animator -> {
        bgScale = (float) animator.getAnimatedValue();
        invalidate();
    });
    animator.start();

    animator = ValueAnimator.ofFloat(rotation, 0);
    animator.setInterpolator(new DecelerateInterpolator());
    animator.setDuration(1000);
    animator.setStartDelay(250);
    animator.addUpdateListener(animator -> {
        fgScale = animator.getAnimatedFraction() * 0.8f;
        rotation = (float) animator.getAnimatedValue();
        invalidate();
    });
    animator.start();

    animator = ValueAnimator.ofFloat(bgRotation, 0);
    animator.setInterpolator(new DecelerateInterpolator());
    animator.setDuration(1250);
    animator.setStartDelay(250);
    animator.addUpdateListener(animator -> {
        bgRotation = (float) animator.getAnimatedValue();
        invalidate();
    });
    animator.start();
}
 

private void initOtherViews(){
	RelativeLayout.LayoutParams captureButtonParams = new RelativeLayout.LayoutParams(3*screenWidth/10, screenHeight/8);
	captureButtonParams.addRule(RelativeLayout.CENTER_HORIZONTAL);
	captureButtonParams.topMargin = screenHeight / 30;
	captureButton.setLayoutParams(captureButtonParams);
	captureText.setLayoutParams(captureButtonParams);
	captureText.setTextSize(TypedValue.COMPLEX_UNIT_DIP, screenHeight/40);
	
	RelativeLayout.LayoutParams nameEditParams = new RelativeLayout.LayoutParams(3*screenWidth/10, screenHeight/8);
	nameEditParams.addRule(RelativeLayout.CENTER_HORIZONTAL);
	nameEditParams.addRule(RelativeLayout.BELOW, captureButton.getId());
	nameEditParams.topMargin = screenHeight / 30;
	nameEdit.setLayoutParams(nameEditParams);
	nameEdit.setTextSize(TypedValue.COMPLEX_UNIT_DIP, screenHeight/42);
	nameEdit.setTextColor(Color.BLACK);

	RelativeLayout.LayoutParams saveButtonParams = new RelativeLayout.LayoutParams(3*screenWidth/10, screenHeight/8);
	saveButtonParams.addRule(RelativeLayout.CENTER_HORIZONTAL);
	saveButtonParams.addRule(RelativeLayout.BELOW, nameEdit.getId());
	saveButtonParams.topMargin = screenHeight / 30;
	saveButton.setLayoutParams(saveButtonParams);
	saveButton.setTextSize(TypedValue.COMPLEX_UNIT_DIP, screenHeight/40);
	
	if(!isTraining){
		deleteButtonFirstPos = screenHeight / 8 + screenHeight /15;
		deleteButtonSecondPos = 3*screenHeight / 8 + 2*screenHeight /15;
    	RelativeLayout.LayoutParams deleteButtonParams = new RelativeLayout.LayoutParams(3*screenWidth/10, screenHeight/8);
    	deleteButtonParams.topMargin = deleteButtonFirstPos;
    	deleteButtonParams.addRule(RelativeLayout.CENTER_HORIZONTAL);
    	deleteButton.setLayoutParams(deleteButtonParams);
    	deleteButton.setTextSize(TypedValue.COMPLEX_UNIT_DIP, screenHeight/42);

	}
}
 

private int getColorForGradient(float[] hsv) {
    // fixed: 17-1-7  Equality tests should not be made with floating point values.
    if ((int) hsv[2] != 1) {
        float oldV = hsv[2];
        hsv[2] = 1;
        int color = Color.HSVToColor(hsv);
        hsv[2] = oldV;
        return color;
    } else {
        return Color.HSVToColor(hsv);
    }
}