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delphi XE7 判断手机返回键

Using the Android Device‘s Back Button

To make your application handle when users press the Back button on their Android device, add an event handler to your form for OnKeyUp, and use the following code within your event handler:

Delphi:

if Key = vkHardwareBack thenbegin  // Do whatever you want to do here  Key := 0; // Set Key = 0 if you want to prevent the default actionend;

C++:

if (Key == vkHardwareBack) {    // Do whatever you want here    Key = 0; // Set Key = 0 if you want to prevent the default action}

delphi XE7 判断手机返回键