Java Code Examples for android.view.View#setBackgroundColor()

@Override
public View getView(int position, View convertView, ViewGroup parent) {
	View v = convertView;
	if(v == null) {
              v = LayoutInflater.from(MainActivity.this).inflate(R.layout.row_drawer, null);
              v.setOnClickListener(this);
          }

          v.setTag(position);
	Tab tab = (Tab)getItem(position);
	((TextView)v).setText(tab.toString());
	
	if(tab == mSelectedTab) {
              v.setBackgroundColor(ThemeManager.getInstance().getCurrentTheme() == 0 ? mBackgroundColorLight : mBackgroundColorDark);
              ((TextView)v).setTextColor(0xFFFFFFFF);
          }
	else {
              v.setBackgroundResource(0);
              ((TextView)v).setTextColor(ThemeManager.getInstance().getCurrentTheme() == 0 ? mTextColorLight : mTextColorDark);
          }
	
	return v;
}
 

/**
 * 设置状态栏颜色(5.0以下无半透明效果,不建议使用)
 *
 * @param activity 需要设置的 activity
 * @param color    状态栏颜色值
 */
@Deprecated
public static void setColorDiff(Activity activity, @ColorInt int color) {
    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
        return;
    }
    transparentStatusBar(activity);
    ViewGroup contentView = (ViewGroup) activity.findViewById(android.R.id.content);
    // 移除半透明矩形,以免叠加
    View fakeStatusBarView = contentView.findViewById(FAKE_STATUS_BAR_VIEW_ID);
    if (fakeStatusBarView != null) {
        if (fakeStatusBarView.getVisibility() == View.GONE) {
            fakeStatusBarView.setVisibility(View.VISIBLE);
        }
        fakeStatusBarView.setBackgroundColor(color);
    } else {
        contentView.addView(createStatusBarView(activity, color));
    }
    setRootView(activity);
}
 

@Override
public void updateViewScaled(TransitionController controller, View target, float scaledProgress) {
    //source: http://stackoverflow.com/questions/18216285/android-animate-color-change-from-color-to-color
    final float[] from = new float[3],
            to = new float[3];
    Color.colorToHSV(fromColor, from);
    Color.colorToHSV(toColor, to);

    final float[] hsv = new float[3];
    // Transition along each axis of HSV (hue, saturation, value)
    hsv[0] = from[0] + (to[0] - from[0]) * scaledProgress;
    hsv[1] = from[1] + (to[1] - from[1]) * scaledProgress;
    hsv[2] = from[2] + (to[2] - from[2]) * scaledProgress;

    target.setBackgroundColor(Color.HSVToColor(hsv));
}
 

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

    final View background = findViewById(R.id.coordinator_layout);
    View.OnClickListener onClickChangeBackgroundColor = new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            background.setBackgroundColor(
                    Color.argb(255, r.nextInt(255), r.nextInt(255), r.nextInt(255)));
        }
    };

    background.setOnClickListener(onClickChangeBackgroundColor);
    findViewById(R.id.button_the_first).setOnClickListener(onClickChangeBackgroundColor);
    findViewById(R.id.button_the_second).setOnClickListener(onClickChangeBackgroundColor);
    findViewById(R.id.button_the_third).setOnClickListener(onClickChangeBackgroundColor);
}
 

@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    View view = new ManageChatUserCell(mContext, 2, true);
    view.setBackgroundColor(Theme.getColor(Theme.key_windowBackgroundWhite));
    ((ManageChatUserCell) view).setDelegate((cell, click) -> {
        TLObject object = getItem((Integer) cell.getTag());
        if (object instanceof TLRPC.ChatParticipant) {
            TLRPC.ChatParticipant participant = (TLRPC.ChatParticipant) getItem((Integer) cell.getTag());
            return createMenuForParticipant(participant, !click);
        } else {
            return false;
        }
    });
    return new RecyclerListView.Holder(view);
}
 

/**
 * 初始化DkDropDownMenu
 *
 * @param tabTexts
 * @param popupViews
 * @param contentView
 */
public void setDropDownMenu(@NonNull List<String> tabTexts, @NonNull List<View> popupViews,
                            @NonNull View contentView) {
    if (tabTexts.size() != popupViews.size()) {
        throw new IllegalArgumentException("params not match, tabTexts.size() should be equal" +
                " popupViews.size()");
    }

    for (int i = 0; i < tabTexts.size(); i++) {
        addTab(tabTexts, i);
    }
    containerView.addView(contentView, 0);

    maskView = new View(getContext());
    maskView.setLayoutParams(new FrameLayout.LayoutParams(FrameLayout.LayoutParams
            .MATCH_PARENT, FrameLayout.LayoutParams.MATCH_PARENT));
    maskView.setBackgroundColor(maskColor);
    maskView.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View v) {
            closeMenu();
        }
    });
    containerView.addView(maskView, 1);
    maskView.setVisibility(GONE);

    popupMenuViews = new FrameLayout(getContext());
    popupMenuViews.setVisibility(GONE);
    containerView.addView(popupMenuViews, 2);

    for (int i = 0; i < popupViews.size(); i++) {
        if (popupViews.get(i).getLayoutParams() == null) {
            popupViews.get(i).setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams
                    .MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT));
        }
        popupMenuViews.addView(popupViews.get(i), i);
    }

}
 

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View res = inflater.inflate(R.layout.fragment_recycler_list, container, false);

    list = (RecyclerView) res.findViewById(R.id.listView);
    list.setLayoutManager(new LinearLayoutManager(getActivity()));
    emptyView = (TextView) res.findViewById(R.id.emptyView);
    emptyView.setText(R.string.blocked_loading);

    res.setBackgroundColor(ActorSDK.sharedActor().style.getBackyardBackgroundColor());
    emptyView.setTextColor(ActorSDK.sharedActor().style.getTextSecondaryColor());

    adapter = new BlockedAdapter(new ArrayList<User>(), new BlockedAdapter.OnBlockedClickListener() {
        @Override
        public void onClick(UserVM u) {
            execute(messenger().unblockUser(u.getId())
                    .then(new Consumer<Void>() {
                        @Override
                        public void apply(Void aVoid) {
                            checkBlockedList();
                        }
                    }));
        }
    });
    list.setAdapter(adapter);
    checkBlockedList();
    return res;
}
 

private void showDivider(boolean darkColorScheme) {
    View divider = findViewById(R.id.divider);
    if (divider != null) divider.setVisibility(View.VISIBLE);
    if (darkColorScheme && divider != null) {
        divider.setBackgroundColor(getResources().getColor(R.color.black_with_10));
    }
}
 

@Override
public View getView(int position, View convertView, ViewGroup parent) {

	View v = convertView;

	if (v == null) {
		LayoutInflater vi;
		vi = LayoutInflater.from(getContext());
		v = vi.inflate(R.layout.item_navigation_drawer, null);
	}

	NavigationDrawerItem p = getItem(position);

	if (p != null && v != null) {
		View col = v.findViewById(R.id.drawer_item_color);
		ImageView ico = (ImageView) v.findViewById(R.id.drawer_item_icon);
		TextView name = (TextView) v.findViewById(R.id.drawer_item_name);

		FontManager.handleFontTags(v);

		col.setBackgroundColor(Utils.color(p.getColor()));
		ico.setImageResource(p.getIcon());
		name.setText(p.getName());
	}

	return v;

}
 

/**
 * 显示SnackBar
 */
public void show() {
    final View view = mParent.get();
    if (view == null) {
        return;
    }
    if (mMessageColor != DEFAULT_COLOR) {
        SpannableString spannableString = new SpannableString(mMessage);
        ForegroundColorSpan colorSpan = new ForegroundColorSpan(mMessageColor);
        spannableString.setSpan(colorSpan, 0, spannableString.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
        mWeakReference = new WeakReference<>(Snackbar.make(view, spannableString, mDuration));
    } else {
        mWeakReference = new WeakReference<>(Snackbar.make(view, mMessage, mDuration));
    }
    final Snackbar snackbar = mWeakReference.get();
    final View snackView = snackbar.getView();
    if (mBgResource != -1) {
        snackView.setBackgroundResource(mBgResource);
    } else if (mBgColor != DEFAULT_COLOR) {
        snackView.setBackgroundColor(mBgColor);
    }
    if (mBottomMargin != 0) {
        ViewGroup.MarginLayoutParams params = (ViewGroup.MarginLayoutParams) snackView.getLayoutParams();
        params.bottomMargin = mBottomMargin;
    }
    if (mActionText.length() > 0 && mActionListener != null) {
        if (mActionTextColor != DEFAULT_COLOR) {
            snackbar.setActionTextColor(mActionTextColor);
        }
        snackbar.setAction(mActionText, mActionListener);
    }
    snackbar.show();
}
 

@Override
public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View view = super.onCreateView(inflater, container, savedInstanceState);
    // we have to set the background color at this point otherwise we loose the ripple effect
    view.setBackgroundColor(ThemeUtils.getThemeColor(getContext(), R.attr.odyssey_color_background));

    return view;
}
 

public void setCurrentItem(int item) {
    if (this.mViewPager != null) {
        if (!(item == -1 || this.mSelectedTabIndex == item)) {
            this.mViewPager.setCurrentItem(item);
        }
        this.mSelectedTabIndex = item;
        int tabCount = this.mTabLayout.getChildCount();
        int i = 0;
        while (i < tabCount) {
            LinearLayout childLayout = (LinearLayout) this.mTabLayout.getChildAt(i);
            for (int j = 0; j < childLayout.getChildCount(); j++) {
                boolean isSelected = i == item;
                View view = childLayout.getChildAt(j);
                if (view instanceof TabView) {
                    view.setSelected(isSelected);
                    if (isSelected) {
                        animateToTab(item);
                        ((TabView) view).setTextColor(this.mContext.getResources().getColor(2131493202));
                    } else {
                        ((TabView) view).setTextColor(this.mContext.getResources().getColor(2131493237));
                    }
                } else if (isSelected) {
                    view.setBackgroundColor(this.mContext.getResources().getColor(2131493202));
                } else {
                    view.setBackgroundDrawable(null);
                }
            }
            i++;
        }
    }
}
 

@Override
public View getSectionHeaderView(int section, View convertView, ViewGroup parent) {
    if (convertView == null) {
        LayoutInflater li = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        convertView = li.inflate(R.layout.settings_section_layout, parent, false);
        convertView.setBackgroundColor(0xffffffff);
    }
    TextView textView = (TextView) convertView.findViewById(R.id.settings_section_text);
    if (selectedContacts.size() == 1) {
        textView.setText(selectedContacts.size() + " " + LocaleController.getString("MEMBER", R.string.MEMBER));
    } else {
        textView.setText(selectedContacts.size() + " " + LocaleController.getString("MEMBERS", R.string.MEMBERS));
    }
    return convertView;
}
 

private void setupStatusBarView(Context context, ViewGroup decorViewGroup) {
    mStatusBarTintView = new View(context);
    LayoutParams params = new LayoutParams(LayoutParams.MATCH_PARENT, mConfig.getStatusBarHeight());
    params.gravity = Gravity.TOP;
    if (mNavBarAvailable && !mConfig.isNavigationAtBottom()) {
        params.rightMargin = mConfig.getNavigationBarWidth();
    }
    mStatusBarTintView.setLayoutParams(params);
    mStatusBarTintView.setBackgroundColor(DEFAULT_TINT_COLOR);
    mStatusBarTintView.setVisibility(View.GONE);
    decorViewGroup.addView(mStatusBarTintView);
}
 

/**
 * Programmatically build up the view hierarchy to avoid the need for resources.
 *
 * @return View hierarchy
 */
private View generateHierarchy(Context context) {
    Resources resources = getResources();

    LayoutParams params;
    int fivePx = dpToPx(5, resources);
    int tenPx = dpToPx(10, resources);
    int twentyPx = dpToPx(20, resources);
    TableLayout.LayoutParams tableLayoutParams = new TableLayout.LayoutParams(
            0,
            ViewGroup.LayoutParams.WRAP_CONTENT,
            1f);
    tableLayoutParams.setMargins(0, 0, fivePx, 0);
    LinearLayout seekWrapper;

    FrameLayout root = new FrameLayout(context);
    params = createLayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, dpToPx(300, resources));
    root.setLayoutParams(params);

    FrameLayout container = new FrameLayout(context);
    params = createMatchParams();
    params.setMargins(0, twentyPx, 0, 0);
    container.setLayoutParams(params);
    container.setBackgroundColor(Color.argb(100, 0, 0, 0));
    root.addView(container);

    mSpringSelectorSpinner = new Spinner(context, Spinner.MODE_DIALOG);
    params = createMatchWrapParams();
    params.gravity = Gravity.TOP;
    params.setMargins(tenPx, tenPx, tenPx, 0);
    mSpringSelectorSpinner.setLayoutParams(params);
    container.addView(mSpringSelectorSpinner);

    LinearLayout linearLayout = new LinearLayout(context);
    params = createMatchWrapParams();
    params.setMargins(0, 0, 0, dpToPx(80, resources));
    params.gravity = Gravity.BOTTOM;
    linearLayout.setLayoutParams(params);
    linearLayout.setOrientation(LinearLayout.VERTICAL);
    container.addView(linearLayout);

    seekWrapper = new LinearLayout(context);
    params = createMatchWrapParams();
    params.setMargins(tenPx, tenPx, tenPx, twentyPx);
    seekWrapper.setPadding(tenPx, tenPx, tenPx, tenPx);
    seekWrapper.setLayoutParams(params);
    seekWrapper.setOrientation(LinearLayout.HORIZONTAL);
    linearLayout.addView(seekWrapper);

    mTensionSeekBar = new SeekBar(context);
    mTensionSeekBar.setLayoutParams(tableLayoutParams);
    seekWrapper.addView(mTensionSeekBar);

    mTensionLabel = new TextView(getContext());
    mTensionLabel.setTextColor(mTextColor);
    params = createLayoutParams(
            dpToPx(50, resources),
            ViewGroup.LayoutParams.MATCH_PARENT);
    mTensionLabel.setGravity(Gravity.CENTER_VERTICAL | Gravity.LEFT);
    mTensionLabel.setLayoutParams(params);
    mTensionLabel.setMaxLines(1);
    seekWrapper.addView(mTensionLabel);

    seekWrapper = new LinearLayout(context);
    params = createMatchWrapParams();
    params.setMargins(tenPx, tenPx, tenPx, twentyPx);
    seekWrapper.setPadding(tenPx, tenPx, tenPx, tenPx);
    seekWrapper.setLayoutParams(params);
    seekWrapper.setOrientation(LinearLayout.HORIZONTAL);
    linearLayout.addView(seekWrapper);

    mFrictionSeekBar = new SeekBar(context);
    mFrictionSeekBar.setLayoutParams(tableLayoutParams);
    seekWrapper.addView(mFrictionSeekBar);

    mFrictionLabel = new TextView(getContext());
    mFrictionLabel.setTextColor(mTextColor);
    params = createLayoutParams(dpToPx(50, resources), ViewGroup.LayoutParams.MATCH_PARENT);
    mFrictionLabel.setGravity(Gravity.CENTER_VERTICAL | Gravity.LEFT);
    mFrictionLabel.setLayoutParams(params);
    mFrictionLabel.setMaxLines(1);
    seekWrapper.addView(mFrictionLabel);

    View nub = new View(context);
    params = createLayoutParams(dpToPx(60, resources), dpToPx(40, resources));
    params.gravity = Gravity.TOP | Gravity.CENTER;
    nub.setLayoutParams(params);
    nub.setOnTouchListener(new OnNubTouchListener());
    nub.setBackgroundColor(Color.argb(255, 0, 164, 209));
    root.addView(nub);

    return root;
}
 

private void init() {
    LinearLayout layout = new LinearLayout(mContext);
    layout.setOrientation(LinearLayout.VERTICAL);
    layout.setPadding(WheelUtils.dip2px(mContext, 20), 0, WheelUtils.dip2px(mContext, 20), 0);

    mTitle = new TextView(mContext);
    mTitle.setTextColor(WheelConstants.DIALOG_WHEEL_COLOR);
    mTitle.setTextSize(TypedValue.COMPLEX_UNIT_SP, 16);
    mTitle.setGravity(Gravity.CENTER);
    LinearLayout.LayoutParams titleParams =
            new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT,
            WheelUtils.dip2px(mContext, 50));
    layout.addView(mTitle, titleParams);

    mLine1 = new View(mContext);
    mLine1.setBackgroundColor(WheelConstants.DIALOG_WHEEL_COLOR);
    LinearLayout.LayoutParams lineParams =
            new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT,
            WheelUtils.dip2px(mContext, 2));
    layout.addView(mLine1, lineParams);

    mWheelView = new WheelView(mContext);
    mWheelView.setSkin(WheelView.Skin.Holo);
    mWheelView.setWheelAdapter(new ArrayWheelAdapter(mContext));
    mStyle = new WheelView.WheelViewStyle();
    mStyle.textColor = Color.GRAY;
    mStyle.selectedTextZoom = 1.2f;
    mWheelView.setStyle(mStyle);

    mWheelView.setOnWheelItemSelectedListener((position, text) -> {
        mSelectedPos = position;
        mSelectedText = text;
    });
    ViewGroup.MarginLayoutParams wheelParams =
            new ViewGroup.MarginLayoutParams(LinearLayout.LayoutParams
            .MATCH_PARENT,
            LinearLayout.LayoutParams.WRAP_CONTENT);
    layout.addView(mWheelView, wheelParams);

    mLine2 = new View(mContext);
    mLine2.setBackgroundColor(WheelConstants.DIALOG_WHEEL_COLOR);
    LinearLayout.LayoutParams line2Params =
            new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT,
            WheelUtils.dip2px(mContext, 1f));
    layout.addView(mLine2, line2Params);

    mButton = new TextView(mContext);
    mButton.setTextColor(WheelConstants.DIALOG_WHEEL_COLOR);
    mButton.setTextSize(TypedValue.COMPLEX_UNIT_SP, 12);
    mButton.setGravity(Gravity.CENTER);
    mButton.setClickable(true);
    mButton.setOnClickListener(this);
    mButton.setText("OK");
    LinearLayout.LayoutParams buttonParams =
            new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT,
            WheelUtils.dip2px(mContext, 45));
    layout.addView(mButton, buttonParams);

    mDialog = new AlertDialog.Builder(mContext).create();
    mDialog.setView(layout);
    mDialog.setCanceledOnTouchOutside(false);
}
 

private void setBackgroundAlpha(View view, float alpha, int baseColor) {
    int a = Math.min(255, Math.max(0, (int) (alpha * 255))) << 24;
    int rgb = 0x00ffffff & baseColor;
    view.setBackgroundColor(a + rgb);
}
 

@Override
public void set(View view, int color) {
    view.setBackgroundColor(color);
}
 

/**
 * Update the provided preview layout.
 * @param previewLayout the layout to update
 */
protected void updatePreview( View previewLayout )
{
    View previewBackground = previewLayout.findViewById(R.id.widgetframe_inner);
    if (previewBackground != null)
    {
        SuntimesTheme.ThemeBackground background = (SuntimesTheme.ThemeBackground)spinBackground.getSelectedItem();
        if (background != null)
        {
            if (background.supportsCustomColors())
                previewBackground.setBackgroundColor(chooseColorBackground.getColor());
            else previewBackground.setBackgroundResource(background.getResID());

            int[] padding = choosePadding.getPaddingPixels(this);
            previewBackground.setPadding(padding[0], padding[1], padding[2], padding[3]);
        }
    }

    TextView previewTitle = (TextView)previewLayout.findViewById(R.id.text_title);
    if (previewTitle != null)
    {
        String displayText = editDisplay.getText().toString().trim();
        String titleText = (displayText.isEmpty() ? chooseName.getThemeName() : displayText);
        previewTitle.setVisibility(View.VISIBLE);
        previewTitle.setTextColor(chooseColorTitle.getColor());

        boolean boldText = checkTitleBold.isChecked();
        if (boldText)
            previewTitle.setText(SuntimesUtils.createBoldSpan(null, titleText, titleText));
        else previewTitle.setText(titleText);

        updateSizeFromChooser(previewTitle, chooseTitleSize);
    }

    updatePreview_sun(previewLayout);
    updatePreview_moon(previewLayout);
    updatePreview_clock(previewLayout);

    int displayed = preview.getDisplayedChild();
    if (displayed == PREVIEWID_SUNPOS_3x1)
        updatePreview_position0(previewLayout);
    else if (displayed == PREVIEWID_SUNPOS_3x2)
        updatePreview_position1(previewLayout);

    //updatePreview_solstice(previewLayout);  // TODO
}
 

@Override
public EasyRVHolder setBackgroundColor(int viewId, int color) {
    View view = getView(viewId);
    view.setBackgroundColor(color);
    return this;
}