com.granita.tasks.utils.TasksListCursorSpinnerAdapter.java Source code

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Here is the source code for com.granita.tasks.utils.TasksListCursorSpinnerAdapter.java

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/*
 * Copyright (C) 2013 Marten Gajda <marten@dmfs.org>
 *
 * 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.granita.tasks.utils;

import com.granita.provider.tasks.TaskContract;
import com.granita.tasks.R;
import com.granita.tasks.model.TaskFieldAdapters;

import android.content.Context;
import android.database.Cursor;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Spinner;
import android.widget.SpinnerAdapter;
import android.widget.TextView;

/**
 * An adapter to adapt a cursor containing task lists to a {@link Spinner}.
 * 
 * @author Arjun Naik<arjun@arjunnaik.in>
 */
public class TasksListCursorSpinnerAdapter extends android.support.v4.widget.CursorAdapter
        implements SpinnerAdapter {
    LayoutInflater mInflater;

    private int mTaskNameColumn;
    private int mAccountNameColumn;
    private final int mView;
    private final int mDropDownView;

    public TasksListCursorSpinnerAdapter(Context context) {
        super(context, null, 0 /* don't register a content observer to avoid a context leak! */);
        mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        mView = R.layout.list_spinner_item_selected;
        mDropDownView = R.layout.list_spinner_item_dropdown;
    }

    /**
     * Create a new {@link TasksListCursorSpinnerAdapter} with custom views.
     * 
     * @param context
     *            A {@link Context}.
     * @param view
     *            The layout id of the view of the collapsed spinner.
     * @param dropDownView
     *            The layout id of the view for items in the drop down list.
     */
    public TasksListCursorSpinnerAdapter(Context context, int view, int dropDownView) {
        super(context, null, 0 /* don't register a content observer to avoid a context leak! */);
        mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        mView = view;
        mDropDownView = dropDownView;
    }

    @Override
    public Cursor swapCursor(Cursor c) {
        Cursor result = super.swapCursor(c);
        if (c != null) {
            mTaskNameColumn = c.getColumnIndex(TaskContract.TaskListColumns.LIST_NAME);
            mAccountNameColumn = c.getColumnIndex(TaskContract.TaskListSyncColumns.ACCOUNT_NAME);
        }
        return result;
    }

    @Override
    public void bindView(View v, Context context, Cursor c) {
        /* Since we override getView and get DropDownView we don't need this method. */
    }

    @Override
    public View newView(Context context, Cursor c, ViewGroup vg) {
        /* Since we override getView and get DropDownView we don't need this method. */
        return null;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        if (convertView == null) {
            convertView = mInflater.inflate(mView, null);
        }

        TextView listName = (TextView) convertView.findViewById(R.id.task_list_name);
        TextView accountName = (TextView) convertView.findViewById(R.id.task_list_account_name);
        Cursor cursor = (Cursor) getItem(position);

        listName.setText(cursor.getString(mTaskNameColumn));
        if (accountName != null) {
            accountName.setText(cursor.getString(mAccountNameColumn));
        }
        return convertView;
    }

    public View getDropDownView(int position, View convertView, ViewGroup parent) {
        if (convertView == null) {
            convertView = mInflater.inflate(mDropDownView, parent, false);
        }

        View listColor = convertView.findViewById(R.id.task_list_color);
        TextView listName = (TextView) convertView.findViewById(R.id.task_list_name);
        TextView accountName = (TextView) convertView.findViewById(R.id.task_list_account_name);
        Cursor cursor = (Cursor) getItem(position);

        listColor.setBackgroundColor(TaskFieldAdapters.LIST_COLOR.get(cursor));
        listName.setText(cursor.getString(mTaskNameColumn));
        accountName.setText(cursor.getString(mAccountNameColumn));
        return convertView;
    }
}