我创建了对话框，如果单击“同意”按钮，则当我们再次打开应用程序时它将不会显示关闭

.setCancelable(true)
.setPositiveButton( "AGREE", new DialogInterface.OnClickListener() {
    public void onClick(DialogInterface dialog, int id) {
        dialog.cancel();

    }
} )
.setNeutralButton( "PRIVACY POLICY", new DialogInterface.OnClickListener() {
    @Override
    public void onClick(DialogInterface dialog, int which) {
        Intent intent = new Intent( MainActivity.this, PrivacyPolicy.class );
        startActivity( intent );
    }
} )
.setNegativeButton( "DENY", new DialogInterface.OnClickListener() {
    public void onClick(DialogInterface dialog, int id) {
        dialog.dismiss();
    }

} );
AlertDialog alert = builder.create();
alert.show();