wear-os

I have written an application that takes advantage of system_alert_window on android wear. Since marshmallow this permission is revoked by default. I have enabled this permission on the phone side app from the phone settings. But the permission is still denied on the android wear side app and causes the android wear side app to crash with permission denied exception. Is there a way to enable this permission on Android wear side? Short answer: keep your watch app on targetSdkVersion 22. Long answer: this permission doesn't use the usual requestPermissions() flow. There's more info in the docs ,

I'm creating an Android Wear app that tries to detect some of the hand movements, to do it, I need to continuously monitor the accelerometer output . I'm wondering how it will affect the battery life. For phones, I know that there are methods like "disable accelerometer while screen is turned off" to save battery, but what's the battery cost in case of watches? Since Android watch can count your steps and it turns on the screen when you face it towards your face, I believe the accelerometer is turned-on all the time anyway. in this case, will my app drain the battery? (Calculations after

I want to develop a health care app using Android smart watch devices that have an optical heart rate sensor. Examples of such devices are: Samsung gear live, Moto360, LG G watch R, etc. To do this, I need the raw PPG signal data from those devices, but I found that the Android API only supports heart rate data by BPM unit. Does anyone know if the raw signal data is accessible, and if so, how do I get access to that data? Yes, it is possible (at least on a Samsung mobile device such as the S5, S6 etc.). See this link: http://developer.samsung.com/galaxy#sensor-extension From the Samsung

I want to sync preference between handhelds and wearables. I implement sample code on handheld app. PutDataMapRequest dataMap = PutDataMapRequest.create("/count"); dataMap.getDataMap().putInt(COUNT_KEY, count++); PutDataRequest request = dataMap.asPutDataRequest(); PendingResult<DataApi.DataItemResult> pendingResult = Wearable.DataApi .putDataItem(mGoogleApiClient, request); System.out.println(dataMap.getDataMap().getInt("COUNT_KEY"));//print 3 And then implement below code on wearable app. But saved count can't be retrieved. PutDataMapRequest dataMap = PutDataMapRequest.create("/count"); int

When I build my project after trying to combine wearApp flavors and buildTypes with applicationIdSuffixes, i get the following error message: Error:Execution failed for task ':app:handleFirstCustomerTestMicroApk'. > The main and the micro apps do not have the same package name. From my app/build.gradle: buildTypes { debug { applicationIdSuffix '.debug' debuggable true embedMicroApp = true } customerTest { applicationIdSuffix '.customertest' debuggable true embedMicroApp = true } release { proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro' minifyEnabled

Has anyone successfully read the heart rate sensor from the Moto 360? mSensorManager = ((SensorManager)getSystemService(SENSOR_SERVICE)); mHeartRateSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_HEART_RATE); I am getting an error that states "SensorManager﹕ sensor or listener is null" I know the Gear Live uses a different ID other than Sensor.TYPE_HEART_RATE...I'm wondering if that's the case with the Moto 360. I tried a sensor value of 65538 which reports itself as a "Wellness Sensor" but that does not appear to return data either. Any advice would be appreciated. I am doing the same on