com.turingtechnologies.materialscrollbar.AlphabetIndicator.java Source code

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Here is the source code for com.turingtechnologies.materialscrollbar.AlphabetIndicator.java

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/*
 * Copyright  2015, Turing Technologies, an unincorporated organisation of Wynne Plaga
 *
 * 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 com.turingtechnologies.materialscrollbar;

import android.annotation.SuppressLint;
import android.content.Context;
import android.support.v7.widget.RecyclerView;

import org.apache.commons.lang3.StringUtils;

/**
 * Indicator which should be used when only one character will be displayed at a time.
 */
@SuppressLint("ViewConstructor")
public class AlphabetIndicator extends Indicator {

    public AlphabetIndicator(Context c) {
        super(c);
    }

    @Override
    String getTextElement(Integer currentSection, RecyclerView.Adapter adapter) {
        return StringUtils
                .capitalize(((INameableAdapter) adapter).getCharacterForElement(currentSection).toString());
    }

    @Override
    int getIndicatorHeight() {
        return 100;
    }

    @Override
    int getIndicatorWidth() {
        return 100;
    }

    @Override
    void testAdapter(RecyclerView.Adapter adapter) {
        if (!(adapter instanceof INameableAdapter)) {
            throw new adapterNotSetupForIndicatorException("INameableAdapter");
        }
    }

    @Override
    int getTextSize() {
        return 50;
    }

}