导读：public void onBackPressed() { if (isState) { //isState初始值为true isState = false; Toast.makeText(this, 请双击back退出程序, Toast.LENGTH_SHORT).show(); new Timer().schedule(new TimerTask() { @Override public void run() { // TODO Auto-gene...
public void onBackPressed() {
if (isState) { //isState初始值为true
isState = false;
Toast.makeText(this, "请双击back退出程序", Toast.LENGTH_SHORT).show();
new Timer().schedule(new TimerTask() {
@Override
public void run() {
// TODO Auto-generated method stub
isState = true;
}
}, 2000);
} else {
finish();
}
}
