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      1 /*
      2  * Copyright (C) 20013The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.example.android.apis.hardware;
     18 
     19 // Need the following import to get access to the app resources, since this
     20 // class is in a sub-package.
     21 
     22 import android.app.Activity;
     23 import android.content.Context;
     24 import android.os.Bundle;
     25 import android.hardware.ConsumerIrManager;
     26 import android.view.View;
     27 import android.widget.TextView;
     28 import android.util.Log;
     29 
     30 import com.example.android.apis.R;
     31 
     32 /**
     33  * App that transmit an IR code
     34  *
     35  * <p>This demonstrates the {@link android.hardware.ConsumerIrManager android.hardware.ConsumerIrManager} class.
     36  *
     37  * <h4>Demo</h4>
     38  * Hardware / Consumer IR
     39  *
     40  * <h4>Source files</h4>
     41  * <table class="LinkTable">
     42  *         <tr>
     43  *             <td>src/com.example.android.apis/hardware/ConsumerIr.java</td>
     44  *             <td>Consumer IR demo</td>
     45  *         </tr>
     46  *         <tr>
     47  *             <td>res/any/layout/consumer_ir.xml</td>
     48  *             <td>Defines contents of the screen</td>
     49  *         </tr>
     50  * </table>
     51  */
     52 public class ConsumerIr extends Activity {
     53     private static final String TAG = "ConsumerIrTest";
     54     TextView mFreqsText;
     55     ConsumerIrManager mCIR;
     56 
     57     /**
     58      * Initialization of the Activity after it is first created.  Must at least
     59      * call {@link android.app.Activity#setContentView setContentView()} to
     60      * describe what is to be displayed in the screen.
     61      */
     62     @Override
     63     protected void onCreate(Bundle savedInstanceState) {
     64         // Be sure to call the super class.
     65         super.onCreate(savedInstanceState);
     66 
     67         // Get a reference to the ConsumerIrManager
     68         mCIR = (ConsumerIrManager)getSystemService(Context.CONSUMER_IR_SERVICE);
     69 
     70         // See assets/res/any/layout/consumer_ir.xml for this
     71         // view layout definition, which is being set here as
     72         // the content of our screen.
     73         setContentView(R.layout.consumer_ir);
     74 
     75         // Set the OnClickListener for the button so we see when it's pressed.
     76         findViewById(R.id.send_button).setOnClickListener(mSendClickListener);
     77         findViewById(R.id.get_freqs_button).setOnClickListener(mGetFreqsClickListener);
     78         mFreqsText = (TextView) findViewById(R.id.freqs_text);
     79     }
     80 
     81     View.OnClickListener mSendClickListener = new View.OnClickListener() {
     82         public void onClick(View v) {
     83             if (!mCIR.hasIrEmitter()) {
     84                 Log.e(TAG, "No IR Emitter found\n");
     85                 return;
     86             }
     87 
     88             // A pattern of alternating series of carrier on and off periods measured in
     89             // microseconds.
     90             int[] pattern = {1901, 4453, 625, 1614, 625, 1588, 625, 1614, 625, 442, 625, 442, 625,
     91                 468, 625, 442, 625, 494, 572, 1614, 625, 1588, 625, 1614, 625, 494, 572, 442, 651,
     92                 442, 625, 442, 625, 442, 625, 1614, 625, 1588, 651, 1588, 625, 442, 625, 494, 598,
     93                 442, 625, 442, 625, 520, 572, 442, 625, 442, 625, 442, 651, 1588, 625, 1614, 625,
     94                 1588, 625, 1614, 625, 1588, 625, 48958};
     95 
     96             // transmit the pattern at 38.4KHz
     97             mCIR.transmit(38400, pattern);
     98         }
     99     };
    100 
    101     View.OnClickListener mGetFreqsClickListener = new View.OnClickListener() {
    102         public void onClick(View v) {
    103             StringBuilder b = new StringBuilder();
    104 
    105             if (!mCIR.hasIrEmitter()) {
    106                 mFreqsText.setText("No IR Emitter found!");
    107                 Log.e(TAG, "No IR Emitter found!\n");
    108                 return;
    109             }
    110 
    111             // Get the available carrier frequency ranges
    112             ConsumerIrManager.CarrierFrequencyRange[] freqs = mCIR.getCarrierFrequencies();
    113             b.append("IR Carrier Frequencies:\n");
    114             for (ConsumerIrManager.CarrierFrequencyRange range : freqs) {
    115                 b.append(String.format("    %d - %d\n", range.getMinFrequency(),
    116                             range.getMaxFrequency()));
    117             }
    118             mFreqsText.setText(b.toString());
    119         }
    120     };
    121 }
    122