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Samsung Developer Program

iOS Limitations and Basics

iOS Limitations and Basics

Watch applications are subject to the following limitations when their watch is connected to an iOS device:

  • Companion apps cannot run when their watch is connected to an iOS device.

Companion apps are composed of a watch app and a host device app that exchange data through one of the following protocols: Samsung Accessory Protocol (SAP), In-App Purchase (IAP), or Remote App Control. Android host apps cannot run on iOS devices.

For details about watch app APIs that are not supported when their watch is connected to an iOS device, see the following API references:

However, the connection between an iOS device and a watch is based on Bluetooth Low Energy (BLE), which has a lower bandwidth than Android devices. This restricts the communication channel between the devices at the platform level. Therefore, standalone watch apps that need higher bandwidths (for example, audio/video streaming and map-related apps) may not work properly when their watch is connected to an iOS device.

Standalone watch apps that need higher bandwidths will work properly when their watch is in the Work without Phone Connection (WPC) mode, because it is directly connected through Wi-Fi, 3G, or Long Term Evolution (LTE), depending on the watch.

Watch screen capture

From a Samsung watch, you can capture and review any watch screenshot from your own watch apps, other watch apps, and the Tizen Wearable platform. After transferring them to a connected watch-compatible Android smartphone (including any Samsung smartphone), you can download screenshot files and use them for your app development and marketing purposes. You can also delete any captured screenshot.

GalaxyWatch_CaptureScreen.png

To capture a screenshot:

  1. Navigate to the screen to be captured.
  2. Press and hold the Power (lower) button.
  3. Swipe the display from left to right.

Screenshots are saved in the Gallery app.

GalaxyWatch_ReviewScreenshots.png

To review captured screenshots:

  1. Press the Power (lower) button.
  2. If your watch has a bezel, rotate the bezel to scroll through the available apps and select the Gallery app.

    If your watch is bezel-less, tap the arrows to scroll through the available apps and tap the Gallery app to select it.

  3. Tap the Gallery app icon to launch the Gallery app.
  4. Tap the screenshot thumbnail to view the screenshot.

GalaxyWatch_DownloadSingleScreenshot.png

To download a single screenshot

Position your phone near the watch so that the watch and phone can connect via Bluetooth.

  1. In the Gallery app, navigate to a screenshot and tap the More Options icon.
  2. If your watch has a bezel, rotate the bezel to select the Send to phone icon. Then, tap the icon.

    If your watch is bezel-less, tap the Send to phone icon to select it. Then, tap the icon again.

  3. Tap the checkmark to connect the watch and phone over Bluetooth and start the download.

GalaxyWatch_DownloadMultipleScreenshots.png

To download multiple screenshots

Position your phone near the watch so that the watch and phone can connect via Bluetooth.

  1. In the Gallery app, navigate to a screenshot, then tap it to select it.
  2. Press and hold the screen, then swipe left or right to scroll through your screenshots, selecting the ones you want to download. A selected screenshot is surrounded by a blue circle. Also, the number of selected screenshots is displayed.
  3. Tap additional screenshots to download.
  4. Tap the More Options icon.
  5. Tap the Send to phone icon.
  6. Tap the checkmark to connect the watch and phone over Bluetooth and start the download.

GalaxyWatch_DeleteSingleScreenshot.png

To delete a single screenshot

  1. In the Gallery app, navigate to a screenshot and tap DELETE.
  2. Tap the checkmark to delete the screenshot.

GalaxyWatch_DeleteMultipleScreenshots.png

To delete multiple screenshots

  1. In the Gallery app, navigate to a screenshot, then tap it to select it.
  2. Press and hold the screen, then swipe left or right to scroll through your screenshots, selecting the ones you want to delete. A selected screenshot is surrounded by a blue circle. Also, the number of selected screenshots is displayed.
  3. Tap additional screenshots to delete.
  4. Tap DELETE.
  5. Tap the checkmark to delete the selected screenshots.

Get logs from watches (Tizen OS)

You may need to get system log files to analyze data for debugging or troubleshooting. To get system log files from wearable devices on Tizen OS, perform the following steps:
 

  1. Launch the Phone app:

    launch_phone.png

  2. Launch Log Dump:
    1. Enter *#9900#:

       

    2. As soon as you enter *#9900#, a Log Dump screen with multiple options appears.
  3. Select and press Run LOG_DUMP:

    Run_Logdump.png

  4. When Run LOG_DUMP completes, connect the watch to your Tizen Studio through Wi-Fi using the instructions located here.
  5. In the Connection Explorer in Tizen Studio, expand the device, and navigate to /opt/usr/media/SLP_debug. Look for the log_timestamp.tar.gz file.

    Tizen_Studio.png

  6. Select the log file, right-click, and click Pull the file. Save the file in your system.

pull_file.png