execute the following command to insert the text into a view with a focus (if it supports text input)
Send text on SDK 23+
adb shell "input keyboard text 'Paste text on Android Device'"
If already connected to your device via
input text 'Paste text on Android Device'
Send text prior to SDK 23
adb shell "input keyboard text 'Paste%stext%son%sAndroid%sDevice'"
Spaces are not accepted as the input, replace them with %s.
To simulate pressing the hardware power key
adb shell input keyevent 26
adb shell input keyevent POWER
Even if you don’t have a hardware key you still can use a
keyevent to perform the equivalent action
adb shell input keyevent CAMERA
Send touch event as input
adb shell input tap Xpoint Ypoint
Send swipe event as input
adb shell input swipe Xpoint1 Ypoint1 Xpoint2 Ypoint2 [DURATION*]
*DURATION is optional, default=300ms. source