在安卓系统中防止双击按钮的最佳方法是什么?


当前回答

你可以用Kotlin扩展函数和RxBinding来实现它

   fun View.clickWithDebounce(debounceTime: Long = 600L, action: () -> Unit): Disposable =
        RxView.clicks(this)
                .debounce(debounceTime, TimeUnit.MILLISECONDS)
                .observeOn(AndroidSchedulers.mainThread())
                .subscribe { action() }

or

fun View.clickWithDebounce(debounceTime: Long = 600L, action: () -> Unit) {
    this.setOnClickListener(object : View.OnClickListener {
        private var lastClickTime: Long = 0

        override fun onClick(v: View) {
            if (SystemClock.elapsedRealtime() - lastClickTime < debounceTime) return
            else action()

            lastClickTime = SystemClock.elapsedRealtime()
        }
    })
}

然后就是:

View.clickWithDebounce{ Your code }

其他回答

将Clickable设置为false对第一次双击不起作用,但后续双击将被阻止。这就好像第一次加载点击委托比较慢,第二次点击在第一次完成之前就被捕获了。

        Button button = contentView.FindViewById<Button>(Resource.Id.buttonIssue);
        button.Clickable = false;
        IssueSelectedItems();
        button.Clickable = true;

你可以用Kotlin扩展函数和RxBinding来实现它

   fun View.clickWithDebounce(debounceTime: Long = 600L, action: () -> Unit): Disposable =
        RxView.clicks(this)
                .debounce(debounceTime, TimeUnit.MILLISECONDS)
                .observeOn(AndroidSchedulers.mainThread())
                .subscribe { action() }

or

fun View.clickWithDebounce(debounceTime: Long = 600L, action: () -> Unit) {
    this.setOnClickListener(object : View.OnClickListener {
        private var lastClickTime: Long = 0

        override fun onClick(v: View) {
            if (SystemClock.elapsedRealtime() - lastClickTime < debounceTime) return
            else action()

            lastClickTime = SystemClock.elapsedRealtime()
        }
    })
}

然后就是:

View.clickWithDebounce{ Your code }

这个解决方案(Kotlin)对我很有效:

abstract class SingleClickListener : View.OnClickListener {
    private val MIN_CLICK_INTERVAL: Long = 1000
    private var mLastClickTime: Long = 0

    abstract fun onSingleClick(v: View?)

    override fun onClick(v: View?) {
        if (mLastClickTime <= 0) {
            mLastClickTime = SystemClock.uptimeMillis()
            onSingleClick(v)
            return
        }

        if (SystemClock.uptimeMillis() - mLastClickTime <= MIN_CLICK_INTERVAL) {
            return
        }

        mLastClickTime = SystemClock.uptimeMillis()

        onSingleClick(v)
    }
}

用法:

someView.setOnClickListener(object : SingleClickListener() {
    override fun onSingleClick(v: View?) {
        v?.also { klik(it) }
    }
})

或者也可以创建扩展函数,在视图上轻松添加ClickListener:

fun View.click(klik: (View) -> Unit) {
    this.setOnClickListener(object : SingleClickListener() {
        override fun onSingleClick(v: View?) {
            v?.also { klik(it) }
        }
    })
}

// Usage
class XPerimentActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_xperiment_layout)

        submit_button.click {
           // do your magic
        }
    }
}

我更喜欢使用信号量块。它是线程安全的,不仅可以用于按钮。

代码示例很简单:

private UtilsSemaphore buttonSemaphore = new UtilsSemaphore();

public void onClick(View view)
{

    boolean isAllowed = buttonSemaphore.lock();

    if(!isAllowed)
    {
        return;
    }

    final View clickedButton = view;

    clickedButton.setEnabled(false);

    /* some code */

    buttonSemaphore.unlock();
    clickedButton.setEnabled(true);
}


public class UtilsSemaphore {

    public int counter = 0;

    public boolean lock()
    {
        int counterValue = ++counter;
        boolean isAllowed = counterValue < 2;

        if(!isAllowed)
        {
            unlock();
        }

        return isAllowed;
    }

    public void unlock()
    {
        --counter;
    }

}

我需要与片段一起工作,只是放一个标志来控制点击:我只想要第一个,其他的不能访问监听器

private boolean flag = true;

...

@Override
public void onClick(View view) {

    ...

    if (flag) {

        ...

        listener.onFragmentInteraction(Constants.MY_FRAGMENT, bundle);
        flag = false;
    }

    ...

}

希望对大家有用,有不正确的地方请指正