在安卓系统中防止双击按钮的最佳方法是什么?
当前回答
我们可以像这样使用按钮进行同步:
示例#1 (Java)
@Override
public void onClick(final View view) {
synchronized (view) {
view.setEnabled(false);
switch (view.getId()) {
case R.id.id1:
...
break;
case R.id.id2:
...
break;
...
}
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
view.setEnabled(true);
}
}, 1000);
}
}
示例#2 (kotlin)使用synchronized
myButton.setOnClickListener { view ->
synchronized(view) {
view.isEnabled = false
// do something
view.postDelayed({ view.isEnabled = true }, 500L)
}
}
祝你好运)
其他回答
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 }
I found none of these suggestions works if the onClick method doesn't return immediately. The touch event is queued by Android and the next onClick is called only after the first one is finished. (Since this is done on the one UI thread this is really normal.) I needed to use the time when the the onClick function is finished + one boolean variable to mark whether the given onClick is running. Both these marker attributes are static to avoid any onClickListener to run at the same time. (If user clicks on another button) You can simple replace your OnClickListener to this class and instead of implementing the onClick method you need to implement the abstract oneClick() method.
abstract public class OneClickListener implements OnClickListener {
private static boolean started = false;
private static long lastClickEndTime = 0;
/* (non-Javadoc)
* @see android.view.View.OnClickListener#onClick(android.view.View)
*/
@Override
final public void onClick(final View v) {
if(started || SystemClock.elapsedRealtime()-lastClickEndTime <1000 ){
Log.d(OneClickListener.class.toString(), "Rejected double click, " + new Date().toString() );
return;
}
Log.d(OneClickListener.class.toString(), "One click, start: " + new Date().toString() );
try{
started = true;
oneClick(v);
}finally{
started = false;
lastClickEndTime = SystemClock.elapsedRealtime();
Log.d(OneClickListener.class.toString(), "One click, end: " + new Date().toString() );
}
}
abstract protected void oneClick(View v);
}
setEnabled(false)非常适合我。
我写{setEnabled(true);},并在第一次点击按钮时将其设为false。
您也可以使用jake Wharton的rx绑定来实现这一点。下面是一个连续点击之间间隔2秒的例子:
RxView.clicks(btnSave)
.throttleFirst(2000, TimeUnit.MILLISECONDS, AndroidSchedulers.mainThread())
.subscribe(new Consumer<Object>() {
@Override
public void accept( Object v) throws Exception {
//handle onclick event here
});
//注意:忽略对象v在这种情况下,我认为总是。
在Java中有一个本地debounce click监听器
view.setOnClickListener(new DebouncedOnClickListener(1000) { //in milisecs
@Override
public void onDebouncedClick(View v) {
//action
}
});
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