Android – how do I send applications to the background?

• Android

How do I send my application to the background code? How do I capture events when I press the home key?

Thank you.

resolvent:

  Intent i = new Intent();
  i.setAction(Intent.ACTION_MAIN);
  i.addCategory(Intent.CATEGORY_HOME);
  this.startActivity(i);

Home key events cannot be captured as Android security features

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