尝试使用Timer运行4次,每次间隔10秒.
我试过用循环来阻止它,但它一直在崩溃.尝试过使用带有三个参数的schedule(),但我不知道在哪里实现一个计数器变量.有任何想法吗？
final Handler handler = new Handler();
Timer timer2 = new Timer();
TimerTask testing = new TimerTask() {
public void run() {
handler.post(new Runnable() {
public void run() {
Toast.makeText(MainActivity.this,"test",Toast.LENGTH_SHORT).show();
}
});
}
};
int DELAY = 10000;
for (int i = 0; i != 2 ;i++) {
timer2.schedule(testing,DELAY);
timer2.cancel();
timer2.purge();
}
解决方法
private final static int DELAY = 10000;
private final Handler handler = new Handler();
private final Timer timer = new Timer();
private final TimerTask task = new TimerTask() {
private int counter = 0;
public void run() {
handler.post(new Runnable() {
public void run() {
Toast.makeText(MainActivity.this,Toast.LENGTH_SHORT).show();
}
});
if(++counter == 4) {
timer.cancel();
}
}
};
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
timer.schedule(task,DELAY,DELAY);
}
