How can we launch a application by just shaking the device? I want to do something similar to the app "Appshaker".
From an activity, you can use the SensorManager to detect a shake, then react to that shake. That is what AppShaker does. Here is a sample project demonstrating one way to detect a shake.
来源：https://stackoverflow.com/questions/5803370/shake-the-device-to-launch-an-application-in-android