Android Things -无法使用Awareness

Question

我有相同的代码与较低的版本(9.4.0)在手机上工作，但由于某种原因，它不能在RPi3上工作？我的build.gradle

compile 'com.google.android.gms:play-services:10.0.0'
provided 'com.google.android.things:androidthings:0.4-devpreview'

清单权限

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.INTERNET" />

该方法

private void getWeather() {

    // Check for permission first
    if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION)
            != PackageManager.PERMISSION_GRANTED) {

        Log.e(TAG, "Fine Location Permission not yet granted");

        ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, MY_PERMISSIONS_REQUEST_ACCESS_FINE_LOCATION);

    } else {
        System.out.println("else of getWeather()");
        Log.i(TAG, "Fine Location permission already granted");

        // Weather
        Awareness.SnapshotApi.getWeather(mGoogleApiClient).setResultCallback(new ResultCallback<WeatherResult>() {
                    @Override
                    public void onResult(@NonNull WeatherResult weatherResult) {
                        if (!weatherResult.getStatus().isSuccess()) {
                            Log.e(TAG, "Could not detect weather info");
                            mWeatherTextView.setText("Could not detect weather info");
                            mWeatherTextView.setTextColor(Color.RED);
                            System.out.println("NO WEATHER INFO");
                            return;
                        }
                        System.out.println("WEATHER INFO REC'D");
                        Weather weather = weatherResult.getWeather();
                        mWeatherTextView.setText(weather.toString());
                    }
                });
    }
}

logcat

08-15 23:46:09.504 411-432/? I/WindowManager: Destroying surface Surface(name=Starting com.example.cartier.thingsaware) called by com.android.server.wm.WindowStateAnimator.destroySurface:2014 com.android.server.wm.WindowStateAnimator.destroySurfaceLocked:881 com.android.server.wm.WindowState.destroyOrSaveSurface:2073 com.android.server.wm.AppWindowToken.destroySurfaces:363 com.android.server.wm.WindowStateAnimator.finishExit:565 com.android.server.wm.WindowStateAnimator.stepAnimationLocked:491 com.android.server.wm.WindowAnimator.updateWindowsLocked:303 com.android.server.wm.WindowAnimator.animateLocked:704 
08-15 23:46:09.594 411-1124/? I/WindowManager: Destroying surface Surface(name=com.android.iotlauncher/com.android.iotlauncher.IoTLauncher) called by com.android.server.wm.WindowStateAnimator.destroySurface:2014 com.android.server.wm.WindowStateAnimator.destroySurfaceLocked:881 com.android.server.wm.WindowState.destroyOrSaveSurface:2073 com.android.server.wm.AppWindowToken.destroySurfaces:363 com.android.server.wm.AppWindowToken.notifyAppStopped:389 com.android.server.wm.WindowManagerService.notifyAppStopped:4456 com.android.server.am.ActivityStack.activityStoppedLocked:1252 com.android.server.am.ActivityManagerService.activityStopped:6902 
08-15 23:46:11.780 411-479/? E/TaskPersister: File error accessing recents directory (directory doesn't exist?).
08-15 23:46:35.798 3687-3687/? I/System.out: else of getWeather()
08-15 23:46:35.798 3687-3687/? I/MainActivity: Fine Location permission already granted

由于某种原因，它在告诉我权限已被授予后停止。这个应用程序没有崩溃，我有一个调用getWeather()的OnClickListener，所以我可以反复点击，但永远不会获得任何快照数据。我用的是和手机上一样的API密钥...

根据docs的说法，AndroidThings上支持Awareness &我见过人们声称在附近使用过的项目&列表中的其他API。有没有人在AndroidThings上成功地使用了感知应用编程接口？

更新到播放服务11.0.0后，应用程序打开，立即关闭& logcat现在显示

08-17 18:13:28.510 3148-3148/? I/System.out: onCreate
08-17 18:13:28.615 410-432/? I/ActivityManager: Displayed com.example.cartier.thingsaware/.MainActivity: +1s45ms
08-17 18:13:28.665 410-525/? I/WindowManager: Destroying surface Surface(name=com.android.iotlauncher/com.android.iotlauncher.IoTLauncher) called by com.android.server.wm.WindowStateAnimator.destroySurface:2014 com.android.server.wm.WindowStateAnimator.destroySurfaceLocked:881 com.android.server.wm.WindowState.destroyOrSaveSurface:2073 com.android.server.wm.AppWindowToken.destroySurfaces:363 com.android.server.wm.AppWindowToken.notifyAppStopped:389 com.android.server.wm.WindowManagerService.notifyAppStopped:4456 com.android.server.am.ActivityStack.activityStoppedLocked:1252 com.android.server.am.ActivityManagerService.activityStopped:6902 
08-17 18:13:28.881 410-432/? I/WindowManager: Destroying surface Surface(name=Starting com.example.cartier.thingsaware) called by com.android.server.wm.WindowStateAnimator.destroySurface:2014 com.android.server.wm.WindowStateAnimator.destroySurfaceLocked:881 com.android.server.wm.WindowState.destroyOrSaveSurface:2073 com.android.server.wm.AppWindowToken.destroySurfaces:363 com.android.server.wm.WindowStateAnimator.finishExit:565 com.android.server.wm.WindowStateAnimator.stepAnimationLocked:491 com.android.server.wm.WindowAnimator.updateWindowsLocked:303 com.android.server.wm.WindowAnimator.animateLocked:704 
08-17 18:13:28.990 3148-3148/? I/Process: Sending signal. PID: 3148 SIG: 9
08-17 18:13:29.047 410-929/? I/ActivityManager: Process com.example.cartier.thingsaware (pid 3148) has died
08-17 18:13:29.047 410-525/? I/WindowManager: WIN DEATH: Window{9cbd0a u0 com.example.cartier.thingsaware/com.example.cartier.thingsaware.MainActivity}
08-17 18:13:29.048 410-525/? I/WindowManager: Destroying surface Surface(name=com.example.cartier.thingsaware/com.example.cartier.thingsaware.MainActivity) called by com.android.server.wm.WindowStateAnimator.destroySurface:2014 com.android.server.wm.WindowStateAnimator.destroySurfaceLocked:881 com.android.server.wm.WindowState.removeLocked:1449 com.android.server.wm.WindowManagerService.removeWindowInnerLocked:2478 com.android.server.wm.WindowManagerService.removeWindowLocked:2436 com.android.server.wm.WindowState$DeathRecipient.binderDied:1780 android.os.BinderProxy.sendDeathNotice:688 <bottom of call stack> 
08-17 18:13:29.083 638-638/? I/AndroidThingsLauncher: Peripheral I/O ports 
08-17 18:13:29.083 638-638/? I/AndroidThingsLauncher: GPIO

Answer 1

总体而言，安卓Things需要最低版本的11.0.0播放服务客户端。这是引入Play Services的IoT变体的版本。在Support for Google Services下的文档中记录了这一点。

为了获得最佳效果，您应该将库版本与您正在运行的预览版本捆绑的确切版本相匹配。您可以在Release Notes上找到这些版本号。