Android Open Source - Cardboard Cardboard Activity

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License

The source code is released under:
Apache License
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Java Source Code

package com.google.vrtoolkit.cardboard;
/*from   w  ww. j  a v a 2 s  . com*/
import android.app.Activity;
import android.content.Intent;
import android.os.Build;
import android.os.Build.VERSION;
import android.os.Bundle;
import android.os.Handler;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnSystemUiVisibilityChangeListener;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.view.Window;
import com.google.vrtoolkit.cardboard.sensors.MagnetSensor;
import com.google.vrtoolkit.cardboard.sensors.MagnetSensor.OnCardboardTriggerListener;
import com.google.vrtoolkit.cardboard.sensors.NfcSensor;
import com.google.vrtoolkit.cardboard.sensors.NfcSensor.OnCardboardNfcListener;

public class CardboardActivity extends Activity implements
    MagnetSensor.OnCardboardTriggerListener,
    NfcSensor.OnCardboardNfcListener {
  private static final int NAVIGATION_BAR_TIMEOUT_MS = 2000;
  private CardboardView mCardboardView;
  private MagnetSensor mMagnetSensor;
  private NfcSensor mNfcSensor;
  private int mVolumeKeysMode;

  public void setCardboardView(CardboardView cardboardView) {
    this.mCardboardView = cardboardView;
    if (cardboardView != null) {
      CardboardDeviceParams cardboardDeviceParams = this.mNfcSensor
          .getCardboardDeviceParams();
      if (cardboardDeviceParams == null) {
        cardboardDeviceParams = new CardboardDeviceParams();
      }
      cardboardView.updateCardboardDeviceParams(cardboardDeviceParams);
    }
  }

  public CardboardView getCardboardView() {
    return this.mCardboardView;
  }

  public void setVolumeKeysMode(int mode) {
    this.mVolumeKeysMode = mode;
  }

  public int getVolumeKeysMode() {
    return this.mVolumeKeysMode;
  }

  public boolean areVolumeKeysDisabled() {
    switch (this.mVolumeKeysMode) {
    case 0:
      return false;
    case 2:
      return isDeviceInCardboard();
    case 1:
      return true;
    }
    throw new IllegalStateException("Invalid volume keys mode "
        + this.mVolumeKeysMode);
  }

  public boolean isDeviceInCardboard() {
    return this.mNfcSensor.isDeviceInCardboard();
  }

  public void onInsertedIntoCardboard(CardboardDeviceParams deviceParams) {
    if (this.mCardboardView != null) {
      this.mCardboardView.updateCardboardDeviceParams(deviceParams);
    }
  }

  public void onRemovedFromCardboard() {
  }

  public void onCardboardTrigger() {
  }

  protected void onNfcIntent(Intent intent) {
    this.mNfcSensor.onNfcIntent(intent);
  }

  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    requestWindowFeature(1);

    getWindow().addFlags(128);

    this.mMagnetSensor = new MagnetSensor(this);
    this.mMagnetSensor.setOnCardboardTriggerListener(this);

    this.mNfcSensor = NfcSensor.getInstance(this);
    this.mNfcSensor.addOnCardboardNfcListener(this);

    onNfcIntent(getIntent());

    setVolumeKeysMode(2);
    if (Build.VERSION.SDK_INT < 19) {
      final Handler handler = new Handler();
      getWindow().getDecorView().setOnSystemUiVisibilityChangeListener(
          new View.OnSystemUiVisibilityChangeListener() {
            public void onSystemUiVisibilityChange(int visibility) {
              if ((visibility & 0x2) == 0) {
                handler.postDelayed(new Runnable() {
                  public void run() {
                    CardboardActivity.this
                        .setFullscreenMode();
                  }
                }, 2000L);
              }
            }
          });
    }
  }

  protected void onResume() {
    super.onResume();
    if (this.mCardboardView != null) {
      this.mCardboardView.onResume();
    }
    this.mMagnetSensor.start();
    this.mNfcSensor.onResume(this);
  }

  protected void onPause() {
    super.onPause();
    if (this.mCardboardView != null) {
      this.mCardboardView.onPause();
    }
    this.mMagnetSensor.stop();
    this.mNfcSensor.onPause(this);
  }

  protected void onDestroy() {
    this.mNfcSensor.removeOnCardboardNfcListener(this);
    super.onDestroy();
  }

  public void setContentView(View view) {
    if ((view instanceof CardboardView)) {
      setCardboardView((CardboardView) view);
    }
    super.setContentView(view);
  }

  public void setContentView(View view, ViewGroup.LayoutParams params) {
    if ((view instanceof CardboardView)) {
      setCardboardView((CardboardView) view);
    }
    super.setContentView(view, params);
  }

  public boolean onKeyDown(int keyCode, KeyEvent event) {
    if (((keyCode == 24) || (keyCode == 25)) && (areVolumeKeysDisabled())) {
      return true;
    }
    return super.onKeyDown(keyCode, event);
  }

  public boolean onKeyUp(int keyCode, KeyEvent event) {
    if (((keyCode == 24) || (keyCode == 25)) && (areVolumeKeysDisabled())) {
      return true;
    }
    return super.onKeyUp(keyCode, event);
  }

  public void onWindowFocusChanged(boolean hasFocus) {
    super.onWindowFocusChanged(hasFocus);
    if (hasFocus) {
      setFullscreenMode();
    }
  }

  private void setFullscreenMode() {
    getWindow().getDecorView().setSystemUiVisibility(5894);
  }

  public static class VolumeKeys {
    public static final int NOT_DISABLED = 0;
    public static final int DISABLED = 1;
    public static final int DISABLED_WHILE_IN_CARDBOARD = 2;
  }
}
Java Source Code List
