在安卓系统中防止双击按钮的最佳方法是什么?
当前回答
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
}
});
其他回答
The Best and simple solution i found is
1. to create a boolean and set as false (default) like
private boolean itemClicked = false;
/* for a safer side you can also declare boolean false in onCreate() also. */
and at onclick() method check
2. if(!itemClicked)
{
itemClicked = true;
// rest of your coding functionality goes here of onClick method.
}
3. last step is to set boolean false in onResume()
@override
onResume()
{
super.onResume(0);
itemClicked = false;
}
使用setEnabled(false)禁用按钮,直到用户可以安全地再次单击它。
Setting the button as clickable false upon clicking and true once it is desired to make the button clickable again is the right approach. For instance, consider the following scenario: you are making a service call upon click of a button and once the service is done you want to display a dialog. For this, once the button is clicked you can set setClickable(false) and once the service responds you will do setClicklable(true) through a reference you pass to your custom dialog. When dialog invokes isShowing() you can trigger the listener and setClicklable(true).
我用两个类来解决这个问题,一个类似于@jinshiyi11的答案,另一个是基于显式点击,在这里你只能点击一个按钮一次,如果你想要另一次点击,你必须显式地指出它。
/**
* Listener que sólo permite hacer click una vez, para poder hacer click
* posteriormente se necesita indicar explicitamente.
*
* @author iberck
*/
public abstract class OnExplicitClickListener implements View.OnClickListener {
// you can perform a click only once time
private boolean canClick = true;
@Override
public synchronized void onClick(View v) {
if (canClick) {
canClick = false;
onOneClick(v);
}
}
public abstract void onOneClick(View v);
public synchronized void enableClick() {
canClick = true;
}
public synchronized void disableClick() {
canClick = false;
}
}
使用示例:
OnExplicitClickListener clickListener = new OnExplicitClickListener() {
public void onOneClick(View v) {
Log.d("example", "explicit click");
...
clickListener.enableClick();
}
}
button.setOnClickListener(clickListener);
我也遇到了类似的问题,我正在显示一些日期选择器和时间选择器,有时它会被点击2次。我用这个方法解决了这个问题:
long TIME = 1 * 1000;
@Override
public void onClick(final View v) {
v.setEnabled(false);
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
v.setEnabled(true);
}
}, TIME);
}
你可以根据自己的需要改变时间。
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