org.fs.todo.views.adapters.StateToDoAdapter.java Source code

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Here is the source code for org.fs.todo.views.adapters.StateToDoAdapter.java

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/*
 * To-Do Copyright (C) 2017 Fatih.
 *  
 * 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 org.fs.todo.views.adapters;

import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.util.Pair;
import android.util.Log;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.List;
import javax.inject.Inject;
import org.fs.common.scope.ForActivity;
import org.fs.todo.BuildConfig;
import org.fs.todo.views.TaskListFragment;

@ForActivity
public class StateToDoAdapter extends FragmentPagerAdapter {

    private List<Pair<Integer, String>> dataSet;

    @Inject
    public StateToDoAdapter(FragmentManager fm, List<Pair<Integer, String>> dataSet) {
        super(fm);
        this.dataSet = dataSet;
    }

    @Override
    public Fragment getItem(int position) {
        if (dataSet != null) {
            final Pair<Integer, String> item = dataSet.get(position);
            if (item != null && item.first != null) {
                return TaskListFragment.newInstance(item.first);
            }
        }
        return null;
    }

    @Override
    public CharSequence getPageTitle(int position) {
        if (dataSet != null) {
            return dataSet.get(position).second;
        }
        return super.getPageTitle(position);
    }

    @Override
    public int getCount() {
        return dataSet != null ? dataSet.size() : 0;
    }

    private void log(String msg) {
        log(Log.DEBUG, msg);
    }

    private void log(Throwable exp) {
        StringWriter strWriter = new StringWriter(128);
        PrintWriter ptrWriter = new PrintWriter(strWriter);
        exp.printStackTrace(ptrWriter);
        log(Log.ERROR, strWriter.toString());
    }

    private void log(int lv, String msg) {
        if (isLogEnabled()) {
            Log.println(lv, getClassTag(), msg);
        }
    }

    private boolean isLogEnabled() {
        return BuildConfig.DEBUG;
    }

    private String getClassTag() {
        return StateToDoAdapter.class.getSimpleName();
    }
}