Close application and launch home screen on Android

Question

I have two different activities. The first launches the second one. In the second activity, I call System.exit(0) in order to force the application to close, bu

Answer 1

This is what I did to close the application: In my application I have a base activity class, I added a static flag called "applicationShutDown". When I need to close the application I set it to true.

In the base activity onCreate and onResume after calling the super calls I test this flag. If the "applicationShutDown" is true I call finish on the current Activity.

This worked for me:

protected void onResume() {
    super.onResume();
    if(BaseActivity.shutDownApp)
    {
        finish();
        return;

    }}

Answer 2

You can not do System.exit(), it's not safe.

You can do this one: Process.killProcess(Process.myPid());

Answer 3

android.os.Process.killProcess(android.os.Process.myPid()); works fine, but it is recommended to let the Android platform worry about the memory management:-)

Answer 4

Start the second activity with startActivityForResult and in the second activity return a value, that once in the onActivityResult method of the first activity closes the main application. I think this is the correct way Android does it.

Answer 5

Use the finish method. It is the simpler and easier method.

this.finish();

Answer 6

I use this:

1) The parent activity call the secondary activity with the method "startActivityForResult"

2) In the secondary activity when is closing:

int exitCode = 1; // Select the number you want
setResult(exitCode);
finish();

3) And in the parent activity override the method "onActivityResult":

public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    int exitCode = 1;
    if(resultCode == exitCode) {
        super.setResult(exitCode); // use this if you have more than 2 activities
        finish();
    }
}

This works fine for me.