在单个Google Glass Live卡上显示多个图像

时间:2015-03-08 23:59:40

标签: google-glass google-gdk

我正在创建一个实时卡片应用程序,它可以从我服务器上运行的php脚本中接收PNG,以响应扫描QR码的请求。目前,我只是用我从服务器接收到的PNG替换Live卡上的图像,但是我希望每次请求都能从服务器接收并显示多个图像。

是否有批准的方式在真人卡上显示多张图片?我想可能有可能生成一个充满图像的菜单,这些图片在点击时就会自动关闭,但似乎可能有更好的选择。

这是我目前的代码:

当前代码

import com.google.android.glass.timeline.LiveCard;
import com.google.android.glass.timeline.LiveCard.PublishMode;

import android.app.PendingIntent;
import android.app.Service;
import android.content.Intent;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Binder;
import android.os.IBinder;
import android.util.Base64;
import android.widget.RemoteViews;

public class iotSplashScreen extends Service {

    private static final String LIVE_CARD_TAG = "iotSplashScreen";
    private LiveCard mLiveCard;
    private RemoteViews mLiveCardView;

    public class iotBinder extends Binder {
        public void changeImage(String change) {
            try {
                byte[] bob = Base64.decode(change, Base64.DEFAULT);
                Bitmap bitmap = BitmapFactory.decodeByteArray(bob, 0, bob.length);
                if(bitmap != null) {
                    mLiveCardView.setImageViewBitmap(R.id.image_view_id, bitmap);
                    mLiveCard.setViews(mLiveCardView);
                }
                else
                {
                    System.out.println("Daaang, dat bitmap was null doe");
                }
            }
            catch (IllegalArgumentException e)
            {
                System.out.println("Base64 had an issues: " + e);
                System.out.println(change);
            }
            catch (NullPointerException e)
            {
                System.out.println("Null Pointer: " + e);
            }
        }
    }

    private final iotBinder mBinder = new iotBinder();

    @Override
    public IBinder onBind(Intent intent) {
        return mBinder;
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        if (mLiveCard == null) {
            mLiveCard = new LiveCard(this, LIVE_CARD_TAG);

            mLiveCardView = new RemoteViews(getPackageName(), R.layout.iot_splash_screen);
            mLiveCard.setViews(mLiveCardView);

            // Display the options menu when the live card is tapped.
            Intent menuIntent = new Intent(this, LiveCardMenuActivity.class);
            mLiveCard.setAction(PendingIntent.getActivity(this, 0, menuIntent, 0));
            mLiveCard.publish(PublishMode.REVEAL);
        } else {
            mLiveCard.navigate();
        }
        return START_STICKY;
    }

    @Override
    public void onDestroy() {
        if (mLiveCard != null && mLiveCard.isPublished()) {
            mLiveCard.unpublish();
            mLiveCard = null;
        }
        super.onDestroy();
    }
}

1 个答案:

答案 0 :(得分:0)

只需在布局文件(iot_splash_screen)中或以编程方式添加更多ImageView。

使用ImageView的资源ID,您可以在每个上面调用setImageViewResource

确保在致电Live卡上的setViews之前设置这些图像。