Java tutorial
package com.github.antoniodisanto92.swipeselector; import android.annotation.TargetApi; import android.content.Context; import android.content.res.TypedArray; import android.os.Build; import android.os.Bundle; import android.os.Parcelable; import android.support.v4.content.ContextCompat; import android.support.v4.view.ViewPager; import android.util.AttributeSet; import android.util.SparseArray; import android.view.LayoutInflater; import android.view.ViewGroup; import android.widget.FrameLayout; import android.widget.ImageView; /* * SwipeSelector library for Android * Copyright (c) 2016 Iiro Krankka (http://github.com/roughike). * * 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. */ public class SwipeSelector extends FrameLayout { private static final int DEFAULT_INDICATOR_SIZE = 6; private static final int DEFAULT_INDICATOR_MARGIN = 8; private static final String STATE_SELECTOR = "STATE_SELECTOR"; private SwipeAdapter mAdapter; public SwipeSelector(Context context) { super(context); init(context, null, 0, 0); } public SwipeSelector(Context context, AttributeSet attrs) { super(context, attrs); init(context, attrs, 0, 0); } public SwipeSelector(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); init(context, attrs, defStyleAttr, 0); } @TargetApi(Build.VERSION_CODES.LOLLIPOP) public SwipeSelector(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { super(context, attrs, defStyleAttr, defStyleRes); init(context, attrs, defStyleAttr, defStyleRes); } private void init(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { TypedArray ta = context.getTheme().obtainStyledAttributes(attrs, R.styleable.SwipeSelector, defStyleAttr, defStyleRes); int indicatorSize; int indicatorMargin; int indicatorInActiveColor; int indicatorActiveColor; int leftButtonResource; int rightButtonResource; String customFontPath; int titleTextAppearance; int descriptionTextAppearance; int descriptionGravity; try { indicatorSize = (int) ta.getDimension(R.styleable.SwipeSelector_swipe_indicatorSize, PixelUtils.dpToPixel(context, DEFAULT_INDICATOR_SIZE)); indicatorMargin = (int) ta.getDimension(R.styleable.SwipeSelector_swipe_indicatorMargin, PixelUtils.dpToPixel(context, DEFAULT_INDICATOR_MARGIN)); indicatorInActiveColor = ta.getColor(R.styleable.SwipeSelector_swipe_indicatorInActiveColor, ContextCompat.getColor(context, R.color.swipeselector_color_indicator_inactive)); indicatorActiveColor = ta.getColor(R.styleable.SwipeSelector_swipe_indicatorActiveColor, ContextCompat.getColor(context, R.color.swipeselector_color_indicator_active)); leftButtonResource = ta.getResourceId(R.styleable.SwipeSelector_swipe_leftButtonResource, R.drawable.ic_action_navigation_chevron_left); rightButtonResource = ta.getResourceId(R.styleable.SwipeSelector_swipe_rightButtonResource, R.drawable.ic_action_navigation_chevron_right); customFontPath = ta.getString(R.styleable.SwipeSelector_swipe_customFontPath); titleTextAppearance = ta.getResourceId(R.styleable.SwipeSelector_swipe_titleTextAppearance, -1); descriptionTextAppearance = ta.getResourceId(R.styleable.SwipeSelector_swipe_descriptionTextAppearance, -1); descriptionGravity = ta.getInteger(R.styleable.SwipeSelector_swipe_descriptionGravity, -1); } finally { ta.recycle(); } LayoutInflater inflater = LayoutInflater.from(context); inflater.inflate(R.layout.swipeselector_layout, this); ViewPager pager = (ViewPager) findViewById(R.id.swipeselector_layout_swipePager); ViewGroup indicatorContainer = (ViewGroup) findViewById(R.id.swipeselector_layout_circleContainer); ImageView leftButton = (ImageView) findViewById(R.id.swipeselector_layout_leftButton); ImageView rightButton = (ImageView) findViewById(R.id.swipeselector_layout_rightButton); mAdapter = new SwipeAdapter.Builder().viewPager(pager).indicatorContainer(indicatorContainer) .indicatorSize(indicatorSize).indicatorMargin(indicatorMargin) .inActiveIndicatorColor(indicatorInActiveColor).activeIndicatorColor(indicatorActiveColor) .leftButtonResource(leftButtonResource).rightButtonResource(rightButtonResource) .leftButton(leftButton).rightButton(rightButton).customFontPath(customFontPath) .titleTextAppearance(titleTextAppearance).descriptionTextAppearance(descriptionTextAppearance) .descriptionGravity(descriptionGravity).build(); pager.setAdapter(mAdapter); } /** * Set a listener to be fired every time a different item is chosen. * @param listener the listener that gets fired on item selection */ public void setOnItemSelectedListener(OnSwipeItemSelectedListener listener) { mAdapter.setOnItemSelectedListener(listener); } /** * A method for giving this SwipeSelector something to show. * * @param swipeItems an array of {@link SwipeItem} to show * inside this view. */ public void setItems(SwipeItem... swipeItems) { mAdapter.setItems(swipeItems); } /** * @return the selected slides' SwipeItem. */ public SwipeItem getSelectedItem() { if (mAdapter.getCount() == 0) { throw new UnsupportedOperationException( "The SwipeSelector " + "doesn't have any items! Use the setItems() method " + "for setting the items before calling getSelectedItem()."); } return mAdapter.getSelectedItem(); } /** * Select an item at the specified position and animate the change. * * @param position the position to select. */ public void selectItemAt(int position) { selectItemAt(position, true); } /** * Select an item at the specified position. * * @param position the position to select. * @param animate should the change be animated or not. */ public void selectItemAt(int position, boolean animate) { mAdapter.selectItemAt(position, animate); } /** * Select an item that has the specified value. The value was given * to the {@link SwipeItem} when constructing it. * * For example, an item constructed like this: * * {@code * new SwipeItem(1, "Example title", "Example description"); * } * * would have the value "1" (without the quote marks). Then you would * select that item by using something like this: * * {@code * swipeSelector.selectItemWithValue(1); * } * * @param value the value of the item to select. */ public void selectItemWithValue(Object value) { selectItemWithValue(value, true); } /** * Select an item that has the specified value. The value was given * to the {@link SwipeItem} when constructing it. * * For example, an item constructed like this: * * {@code * new SwipeItem(1, "Example title", "Example description"); * } * * would have the value "1" (without the quote marks). Then you would * select that item by using something like this: * * {@code * swipeSelector.selectItemWithValue(1, true); * } * * @param value the value of the item to select. * @param animate should the change be animated or not. */ public void selectItemWithValue(Object value, boolean animate) { mAdapter.selectItemWithValue(value, animate); } @Override public Parcelable onSaveInstanceState() { Bundle bundle = mAdapter.onSaveInstanceState(); bundle.putParcelable(STATE_SELECTOR, super.onSaveInstanceState()); return bundle; } @Override public void onRestoreInstanceState(Parcelable state) { if (state instanceof Bundle) {//Shouldn't be needed, just in case Bundle bundle = (Bundle) state; mAdapter.onRestoreInstanceState(bundle); state = bundle.getParcelable(STATE_SELECTOR); } super.onRestoreInstanceState(state); } @Override protected void dispatchSaveInstanceState(SparseArray<Parcelable> container) { dispatchFreezeSelfOnly(container); } @Override protected void dispatchRestoreInstanceState(SparseArray<Parcelable> container) { dispatchThawSelfOnly(container); } }