Android devices include a few options to launch Google Assistant. Some can be pressed, others have physical buttons, and there are screen gestures. It is also possible to start by tapping the back of your device. Here̵
To do this, you first need an app called ‘Tap, Tap’. It is not available for download from the Google Play Store, but it can be sideloaded easily on any Android 7.0+ device. Before we move on, follow our guide to install Tap, Tap and get it done.
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Now that you have set up Tap, Tap, we can configure the Google Assistant gesture. Open the app and select ‘Double tap actions’ or ‘Triple tap actions’. For this guide we will use Double Tap.
Then select the “Add Action” button at the bottom of the screen.
In the ‘Start’ category, tap ‘Start assistant’. This will launch the default assistant app. For most people, that is Google Assistant.
The assistant will now start when you tap the back of the device. Then we can add requirements that must be met for the gesture to work. For example, you can set it to perform the gesture only when the screen is on. Tap on ‘Add requirement’.
Select one of the requirements from the list.
That is it! Now you can launch Google Assistant by simply tapping the back of your device.