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Diffstat (limited to 'main/src/ui/java/de/blinkt/openvpn/views/SlidingTabLayout.java')
-rw-r--r-- | main/src/ui/java/de/blinkt/openvpn/views/SlidingTabLayout.java | 314 |
1 files changed, 0 insertions, 314 deletions
diff --git a/main/src/ui/java/de/blinkt/openvpn/views/SlidingTabLayout.java b/main/src/ui/java/de/blinkt/openvpn/views/SlidingTabLayout.java deleted file mode 100644 index 51ad6933..00000000 --- a/main/src/ui/java/de/blinkt/openvpn/views/SlidingTabLayout.java +++ /dev/null @@ -1,314 +0,0 @@ -/* - * Copyright (C) 2013 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -package de.blinkt.openvpn.views; - -import android.content.Context; -import android.graphics.Typeface; -import android.os.Build; -import android.support.v4n.view.PagerAdapter; -import android.support.v4n.view.ViewPager; -import android.util.AttributeSet; -import android.util.TypedValue; -import android.view.Gravity; -import android.view.LayoutInflater; -import android.view.View; -import android.widget.HorizontalScrollView; -import android.widget.TextView; - -/** - * To be used with ViewPager to provide a tab indicator component which give constant feedback as to - * the user's scroll progress. - * <p> - * To use the component, simply add it to your view hierarchy. Then in your - * {@link android.app.Activity} or {@link androidx.core.app.Fragment} call - * {@link #setViewPager(ViewPager)} providing it the ViewPager this layout is being used for. - * <p> - * The colors can be customized in two ways. The first and simplest is to provide an array of colors - * via {@link #setSelectedIndicatorColors(int...)} and {@link #setDividerColors(int...)}. The - * alternative is via the {@link TabColorizer} interface which provides you complete control over - * which color is used for any individual position. - * <p> - * The views used as tabs can be customized by calling {@link #setCustomTabView(int, int)}, - * providing the layout ID of your custom layout. - */ -public class SlidingTabLayout extends HorizontalScrollView implements TabBarView { - - /** - * Allows complete control over the colors drawn in the tab layout. Set with - * {@link #setCustomTabColorizer(TabColorizer)}. - */ - public interface TabColorizer { - - /** - * @return return the color of the indicator used when {@code position} is selected. - */ - int getIndicatorColor(int position); - - /** - * @return return the color of the divider drawn to the right of {@code position}. - */ - int getDividerColor(int position); - - } - - private static final int TITLE_OFFSET_DIPS = 24; - private static final int TAB_VIEW_PADDING_DIPS = 16; - private static final int TAB_VIEW_TEXT_SIZE_SP = 12; - - private int mTitleOffset; - - private int mTabViewLayoutId; - private int mTabViewTextViewId; - - private ViewPager mViewPager; - private ViewPager.OnPageChangeListener mViewPagerPageChangeListener; - - private final SlidingTabStrip mTabStrip; - - public SlidingTabLayout(Context context) { - this(context, null); - } - - public SlidingTabLayout(Context context, AttributeSet attrs) { - this(context, attrs, 0); - } - - public SlidingTabLayout(Context context, AttributeSet attrs, int defStyle) { - super(context, attrs, defStyle); - - // Disable the Scroll Bar - setHorizontalScrollBarEnabled(false); - // Make sure that the Tab Strips fills this View - setFillViewport(true); - - mTitleOffset = (int) (TITLE_OFFSET_DIPS * getResources().getDisplayMetrics().density); - - mTabStrip = new SlidingTabStrip(context); - addView(mTabStrip, LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT); - } - - /** - * Set the custom {@link TabColorizer} to be used. - * - * If you only require simple custmisation then you can use - * {@link #setSelectedIndicatorColors(int...)} and {@link #setDividerColors(int...)} to achieve - * similar effects. - */ - public void setCustomTabColorizer(TabColorizer tabColorizer) { - mTabStrip.setCustomTabColorizer(tabColorizer); - } - - /** - * Sets the colors to be used for indicating the selected tab. These colors are treated as a - * circular array. Providing one color will mean that all tabs are indicated with the same color. - */ - public void setSelectedIndicatorColors(int... colors) { - mTabStrip.setSelectedIndicatorColors(colors); - } - - /** - * Sets the colors to be used for tab dividers. These colors are treated as a circular array. - * Providing one color will mean that all tabs are indicated with the same color. - */ - public void setDividerColors(int... colors) { - mTabStrip.setDividerColors(colors); - } - - /** - * Set the {@link ViewPager.OnPageChangeListener}. When using {@link SlidingTabLayout} you are - * required to set any {@link ViewPager.OnPageChangeListener} through this method. This is so - * that the layout can update it's scroll position correctly. - * - * @see ViewPager#setOnPageChangeListener(ViewPager.OnPageChangeListener) - */ - public void setOnPageChangeListener(ViewPager.OnPageChangeListener listener) { - mViewPagerPageChangeListener = listener; - } - - /** - * Set the custom layout to be inflated for the tab views. - * - * @param layoutResId Layout id to be inflated - * @param textViewId id of the {@link TextView} in the inflated view - */ - public void setCustomTabView(int layoutResId, int textViewId) { - mTabViewLayoutId = layoutResId; - mTabViewTextViewId = textViewId; - } - - /** - * Sets the associated view pager. Note that the assumption here is that the pager content - * (number of tabs and tab titles) does not change after this call has been made. - */ - public void setViewPager(ViewPager viewPager) { - mTabStrip.removeAllViews(); - - mViewPager = viewPager; - if (viewPager != null) { - viewPager.setOnPageChangeListener(new InternalViewPagerListener()); - populateTabStrip(); - } - } - - /** - * Create a default view to be used for tabs. This is called if a custom tab view is not set via - * {@link #setCustomTabView(int, int)}. - */ - protected TextView createDefaultTabView(Context context) { - TextView textView = new TextView(context); - textView.setGravity(Gravity.CENTER); - textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, TAB_VIEW_TEXT_SIZE_SP); - textView.setTypeface(Typeface.DEFAULT_BOLD); - - if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) { - // If we're running on Honeycomb or newer, then we can use the Theme's - // selectableItemBackground to ensure that the View has a pressed state - TypedValue outValue = new TypedValue(); - getContext().getTheme().resolveAttribute(android.R.attr.selectableItemBackground, - outValue, true); - textView.setBackgroundResource(outValue.resourceId); - } - - if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) { - // If we're running on ICS or newer, enable all-caps to match the Action Bar tab style - textView.setAllCaps(true); - } - - int padding = (int) (TAB_VIEW_PADDING_DIPS * getResources().getDisplayMetrics().density); - textView.setPadding(padding, padding, padding, padding); - - return textView; - } - - private void populateTabStrip() { - final PagerAdapter adapter = mViewPager.getAdapter(); - final View.OnClickListener tabClickListener = new TabClickListener(); - - for (int i = 0; i < adapter.getCount(); i++) { - View tabView = null; - TextView tabTitleView = null; - - if (mTabViewLayoutId != 0) { - // If there is a custom tab view layout id set, try and inflate it - tabView = LayoutInflater.from(getContext()).inflate(mTabViewLayoutId, mTabStrip, - false); - tabTitleView = (TextView) tabView.findViewById(mTabViewTextViewId); - } - - if (tabView == null) { - tabView = createDefaultTabView(getContext()); - } - - if (tabTitleView == null && TextView.class.isInstance(tabView)) { - tabTitleView = (TextView) tabView; - } - - tabTitleView.setText(adapter.getPageTitle(i)); - tabView.setOnClickListener(tabClickListener); - - mTabStrip.addView(tabView); - } - } - - @Override - protected void onAttachedToWindow() { - super.onAttachedToWindow(); - - if (mViewPager != null) { - scrollToTab(mViewPager.getCurrentItem(), 0); - } - } - - private void scrollToTab(int tabIndex, int positionOffset) { - final int tabStripChildCount = mTabStrip.getChildCount(); - if (tabStripChildCount == 0 || tabIndex < 0 || tabIndex >= tabStripChildCount) { - return; - } - - View selectedChild = mTabStrip.getChildAt(tabIndex); - if (selectedChild != null) { - int targetScrollX = selectedChild.getLeft() + positionOffset; - - if (tabIndex > 0 || positionOffset > 0) { - // If we're not at the first child and are mid-scroll, make sure we obey the offset - targetScrollX -= mTitleOffset; - } - - scrollTo(targetScrollX, 0); - } - } - - private class InternalViewPagerListener implements ViewPager.OnPageChangeListener { - private int mScrollState; - - @Override - public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { - int tabStripChildCount = mTabStrip.getChildCount(); - if ((tabStripChildCount == 0) || (position < 0) || (position >= tabStripChildCount)) { - return; - } - - mTabStrip.onViewPagerPageChanged(position, positionOffset); - - View selectedTitle = mTabStrip.getChildAt(position); - int extraOffset = (selectedTitle != null) - ? (int) (positionOffset * selectedTitle.getWidth()) - : 0; - scrollToTab(position, extraOffset); - - if (mViewPagerPageChangeListener != null) { - mViewPagerPageChangeListener.onPageScrolled(position, positionOffset, - positionOffsetPixels); - } - } - - @Override - public void onPageScrollStateChanged(int state) { - mScrollState = state; - - if (mViewPagerPageChangeListener != null) { - mViewPagerPageChangeListener.onPageScrollStateChanged(state); - } - } - - @Override - public void onPageSelected(int position) { - if (mScrollState == ViewPager.SCROLL_STATE_IDLE) { - mTabStrip.onViewPagerPageChanged(position, 0f); - scrollToTab(position, 0); - } - - if (mViewPagerPageChangeListener != null) { - mViewPagerPageChangeListener.onPageSelected(position); - } - } - - } - - private class TabClickListener implements View.OnClickListener { - @Override - public void onClick(View v) { - for (int i = 0; i < mTabStrip.getChildCount(); i++) { - if (v == mTabStrip.getChildAt(i)) { - mViewPager.setCurrentItem(i); - return; - } - } - } - } - -} |