ActivityRecognitionIntentReceiver.java

/*
 * Copyright (C) 2013 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.example.google.location;

import com.example.google.R;

import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.text.format.Time;
import android.util.Log;
import android.view.Gravity;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TableLayout;
import android.widget.TextView;

public class ActivityRecognitionIntentReceiver extends BroadcastReceiver {

    private final String[] mActivities = {
            "IN_VEHICLE", "ON_BICYCLE", "ON_FOOT", "STILL", "UNKNOWN", "TILTING"
    };
    private final int[] mImage_Ids = {
            R.drawable.car, R.drawable.cycle, R.drawable.walk,
            R.drawable.still, R.drawable.unknown, R.drawable.tilt
    };
    private final int mMaxRows = 100;

    @Override
    public void onReceive(Context context, Intent intent) {
        if (!intent.getAction().equals(LocationActivity.ACTION_ACTIVITY_RECOGNITION)) {
            Log.v(LocationActivity.TAG, "onReceive return" +
                    intent.getAction());
            return;
        }
        int activity = intent.getIntExtra("activity_type", -1);
        Log.v(LocationActivity.TAG,
                "onReceive Activity_type == " + activity);
        if (activity == -1) {
            return;
        }
        // Add a new row to the table_layout. A row contains a text and an
        // icon for the corresponding activity both contained in a
        // horizontal linear_layout.
        LinearLayout linear_layout = new LinearLayout(context);
        linear_layout.setOrientation(LinearLayout.HORIZONTAL);

        Time now = new Time();
        now.setToNow();
        TextView txt = new TextView(context);
        txt.setText(now.format("%H:%M:%S") + " "
                + mActivities[activity] + " ");
        txt.setTextSize(16);
        txt.setPadding(10, 20, 20, 10);
        txt.setGravity(Gravity.CENTER_VERTICAL | Gravity.CENTER_HORIZONTAL);

        ImageView img = new ImageView(context);
        img.setImageResource(mImage_Ids[activity]);

        linear_layout.addView(txt);
        linear_layout.addView(img);
        TableLayout tableLayout =
                (TableLayout) ((Activity) context).findViewById(R.id.tableLayout1);
        if (tableLayout.getChildCount() > mMaxRows) {
            tableLayout.removeAllViews();
        }
        tableLayout.addView(linear_layout, 0);
    }
}