com.manning.androidhacks.hack023.adapter.TodoAdapter.java Source code

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Here is the source code for com.manning.androidhacks.hack023.adapter.TodoAdapter.java

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/*
50AH-code
=========
    
50 Android Hacks (http://manning.com/sessa/) book source code
    
    
Copyright (c) 2012 Manning
    
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
    
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
    
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
    
    
*/

/*******************************************************************************
 * Copyright (c) 2012 Manning
 * See the file license.txt for copying permission.
 ******************************************************************************/
package com.manning.androidhacks.hack023.adapter;

import android.app.Activity;
import android.content.Context;
import android.database.Cursor;
import android.graphics.Color;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.CursorAdapter;
import android.widget.TextView;

import com.manning.androidhacks.hack023.R;
import com.manning.androidhacks.hack023.dao.TodoDAO;
import com.manning.androidhacks.hack023.provider.StatusFlag;
import com.manning.androidhacks.hack023.provider.TodoContentProvider;

public class TodoAdapter extends CursorAdapter {

    private LayoutInflater mInflater;
    private final int mTitleIndex;
    private final int mInternalIdIndex;
    private final int mInternalStatusIndex;
    private Activity mActivity;

    private static final String[] PROJECTION_IDS_TITLE_AND_STATUS = new String[] { TodoContentProvider.COLUMN_ID,
            TodoContentProvider.COLUMN_TITLE, TodoContentProvider.COLUMN_STATUS_FLAG };

    public TodoAdapter(Activity activity) {
        super(activity, getManagedCursor(activity), true);
        mActivity = activity;
        mInflater = LayoutInflater.from(activity);
        final Cursor c = getCursor();

        mInternalIdIndex = c.getColumnIndexOrThrow(TodoContentProvider.COLUMN_ID);
        mTitleIndex = c.getColumnIndexOrThrow(TodoContentProvider.COLUMN_TITLE);
        mInternalStatusIndex = c.getColumnIndexOrThrow(TodoContentProvider.COLUMN_STATUS_FLAG);
    }

    private static Cursor getManagedCursor(Activity activity) {
        return activity.managedQuery(TodoContentProvider.CONTENT_URI, PROJECTION_IDS_TITLE_AND_STATUS,
                TodoContentProvider.COLUMN_STATUS_FLAG + " != " + StatusFlag.DELETE, null,
                TodoContentProvider.DEFAULT_SORT_ORDER);
    }

    @Override
    public void bindView(View view, Context context, Cursor c) {
        final ViewHolder holder = (ViewHolder) view.getTag();
        holder.id.setText(c.getString(mInternalIdIndex));
        holder.title.setText(c.getString(mTitleIndex));

        final int status = c.getInt(mInternalStatusIndex);
        if (StatusFlag.CLEAN != status) {
            holder.title.setBackgroundColor(Color.RED);
        } else {
            holder.title.setBackgroundColor(Color.GREEN);
        }

        final Long id = Long.valueOf(holder.id.getText().toString());
        holder.deleteButton.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                TodoDAO.getInstance().deleteTodo(mActivity.getContentResolver(), id);
            }
        });

    }

    @Override
    public View newView(Context context, Cursor cursor, ViewGroup parent) {
        final View view = mInflater.inflate(R.layout.todo_row, parent, false);

        ViewHolder holder = new ViewHolder();
        holder.id = (TextView) view.findViewById(R.id.todo_row_id);
        holder.title = (TextView) view.findViewById(R.id.todo_row_title);
        holder.deleteButton = (Button) view.findViewById(R.id.todo_row_delete);

        view.setTag(holder);

        return view;
    }

    private static class ViewHolder {
        TextView id;
        TextView title;
        Button deleteButton;
    }

}