我有一个项目,每472毫秒显示一次数字,五次。因此,您触摸屏幕并显示一个数字,然后在472毫秒后显示另一个数字,依此类推,直到显示五个数字。它在大多数情况下都有效,但有时它不响应我的单击/触摸,有时只显示一个数字。有关如何解决此问题的任何想法?
我的XML:
<LinearLayout
android:id="@+id/linearLayout"
android:layout_width="0dp"
android:layout_height="0dp"
android:clickable="true"
android:onClick="perform_action"
android:orientation="vertical"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:layout_gravity="center_horizontal|center_vertical"
android:layout_marginBottom="75dp"
android:gravity="center"
android:textSize="400sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent" />
</RelativeLayout>
</LinearLayout>
</android.support.constraint.ConstraintLayout>
还有我的Java:
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void perform_action(View view) {
final List<Integer> randomNumbers = new ArrayList<>();
Observable.intervalRange(0, 5, 0, 472, TimeUnit.MILLISECONDS)
.map(aLong -> {
int previous = randomNumbers.size() > 0 ? randomNumbers.get(
randomNumbers.size() - 1) : -1;
int randomNumber = generateRandomNumber();
while (randomNumber == previous) generateRandomNumber();
randomNumbers.add(randomNumber);
return randomNumber;
})
.observeOn(AndroidSchedulers.mainThread())
.subscribe(integer -> {
TextView tv = (TextView) findViewById(R.id.textView1);
tv.setText(String.valueOf(integer));
});
}
private int generateRandomNumber() {
Random r = new Random();
int minNumber = 1;
int maxNumber = 9;
return r.nextInt( ( maxNumber - minNumber ) + 1 ) + minNumber;
}
}
答案 0 :(得分:0)
您应该更改此设置:
while (randomNumber == previous) generateRandomNumber();
对此:
while (randomNumber == previous) randomNumber = generateRandomNumber();
现在,一旦您进入while
循环,它就会无限循环,因为条件始终是true
。