src/com/android/dialer/filterednumber/BlockedNumberFragment.java

/*
 * Copyright (C) 2015 The Android Open Source Project
 *
 * 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.android.dialer.filterednumber;

import android.app.ListFragment;
import android.app.LoaderManager;
import android.content.CursorLoader;
import android.content.Intent;
import android.content.Loader;
import android.database.Cursor;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import com.android.dialer.R;
import com.android.dialer.database.FilteredNumberAsyncQueryHandler;
import com.android.dialer.database.FilteredNumberContract;

public class BlockedNumberFragment extends ListFragment implements
        LoaderManager.LoaderCallbacks<Cursor>, View.OnClickListener {

    private BlockedNumberAdapter mAdapter;
    private FilteredNumberAsyncQueryHandler mFilteredNumberAsyncQueryHandler;

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        LayoutInflater inflater = LayoutInflater.from(getContext());
        getListView().addHeaderView(inflater.inflate(R.layout.blocked_number_header, null));
        mFilteredNumberAsyncQueryHandler =
                new FilteredNumberAsyncQueryHandler(getActivity().getContentResolver());
        if (mAdapter == null) {
            mAdapter = new BlockedNumberAdapter(getContext(), mFilteredNumberAsyncQueryHandler);
        }
        setListAdapter(mAdapter);
        getActivity().findViewById(R.id.add_number_button).setOnClickListener(this);
        getListView().getEmptyView().findViewById(R.id.add_number_button).setOnClickListener(this);
    }

    @Override
    public void onDestroyView() {
        super.onDestroyView();
        setListAdapter(null);
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        getLoaderManager().initLoader(0, null, this);
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.blocked_number_fragment, container, false);
        return view;
    }

    @Override
    public Loader<Cursor> onCreateLoader(int id, Bundle args) {
        final String[] projection = {
            FilteredNumberContract.FilteredNumberColumns._ID,
            FilteredNumberContract.FilteredNumberColumns.COUNTRY_ISO,
            FilteredNumberContract.FilteredNumberColumns.NUMBER,
            FilteredNumberContract.FilteredNumberColumns.NORMALIZED_NUMBER
        };
        final String selection = FilteredNumberContract.FilteredNumberColumns.TYPE
                + "=" + FilteredNumberContract.FilteredNumberTypes.BLOCKED_NUMBER;
        final CursorLoader cursorLoader = new CursorLoader(
                getContext(), FilteredNumberContract.FilteredNumber.CONTENT_URI, projection,
                selection, null, null);
        return cursorLoader;
    }

    @Override
    public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
        mAdapter.swapCursor(data);
    }

    @Override
    public void onLoaderReset(Loader<Cursor> loader) {
        mAdapter.swapCursor(null);
    }

    @Override
    public void onClick(final View v) {
        startActivity(new Intent(getActivity(), BlockedNumberSearchActivity.class));
    }
}