Android编程调用红外线遥控功能示例

/**
 * Android红外线遥控官方Demo
 * 
 * @description：
 * @author ldm
 * @date 2016-4-28 下午5:06:28
 */
public class ConsumerIrActivity extends Activity {
  private static final String TAG = "ConsumerIrTest";
  private TextView mFreqsText;
  // Android4.4之后 红外遥控ConsumerIrManager，可以被小米4调用
  private ConsumerIrManager mCIR;
  @SuppressLint("InlinedApi")
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.consumer_ir);
    // 获取系统的红外遥控服务
    mCIR = (ConsumerIrManager) getSystemService(Context.CONSUMER_IR_SERVICE);
    initViewsAndEvents();
  }
  private void initViewsAndEvents() {
    findViewById(R.id.send_button).setOnClickListener(mSendClickListener);
    findViewById(R.id.get_freqs_button)
        .setOnClickListener(mOnClickListener);
    mFreqsText = (TextView) findViewById(R.id.freqs_text);
  }
  View.OnClickListener mSendClickListener = new View.OnClickListener() {
    @TargetApi(Build.VERSION_CODES.KITKAT)
    public void onClick(View v) {
      if (!mCIR.hasIrEmitter()) {
        Log.e(TAG, "未找到红外发身器！");
        return;
      }
      // 一种交替的载波序列模式，通过毫秒测量
      int[] pattern = { 1901, 4453, 625, 1614, 625, 1588, 625, 1614, 625,
          442, 625, 442, 625, 468, 625, 442, 625, 494, 572, 1614,
          625, 1588, 625, 1614, 625, 494, 572, 442, 651, 442, 625,
          442, 625, 442, 625, 1614, 625, 1588, 651, 1588, 625, 442,
          625, 494, 598, 442, 625, 442, 625, 520, 572, 442, 625, 442,
          625, 442, 651, 1588, 625, 1614, 625, 1588, 625, 1614, 625,
          1588, 625, 48958 };
      // 在38.4KHz条件下进行模式转换
      mCIR.transmit(38400, pattern);
    }
  };
  @SuppressLint("NewApi")
  View.OnClickListener mOnClickListener = new View.OnClickListener() {
    public void onClick(View v) {
      StringBuilder b = new StringBuilder();
      if (!mCIR.hasIrEmitter()) {
        mFreqsText.setText("未找到红外发身器！");
        return;
      }
      // 获得可用的载波频率范围
      ConsumerIrManager.CarrierFrequencyRange[] freqs = mCIR
          .getCarrierFrequencies();
      b.append("IR Carrier Frequencies:\n");// 红外载波频率
      // 边里获取频率段
      for (ConsumerIrManager.CarrierFrequencyRange range : freqs) {
        b.append(String.format("  %d - %d\n",
            range.getMinFrequency(), range.getMaxFrequency()));
      }
      mFreqsText.setText(b.toString());// 显示结果
    }
  };
}

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:orientation="vertical" >
<Button
    android:id="@+id/send_button"
    android:text="@string/ir_send"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"/>
  <Button
    android:id="@+id/get_freqs_button"
    android:text="@string/ir_get_freqs"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"/>
  <ScrollView
    android:id="@+id/freqs_text_scroll"
    android:layout_width="match_parent"
    android:layout_height="0dp"
    android:layout_weight="1" >
    <TextView
      android:id="@+id/freqs_text"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:paddingLeft="3dp"
      android:paddingRight="3dp" />
  </ScrollView>
</LinearLayout>