android中的onclick监听器
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onclick listener in android
提问by sivaraj
I used two image button for Next and Back and i used onclick event for those button i want to which image button fire on onclick and run particular function for next or back in onclick event how will i get which image button fire or onclick event at runtime
我为 Next 和 Back 使用了两个图像按钮，我对那些按钮使用了 onclick 事件，我希望哪个图像按钮在 onclick 时触发，并在 onclick 事件中为 next 或 back 运行特定功能，我将如何在运行时触发哪个图像按钮或 onclick 事件
回答by Konstantin Burov
Use View.getId() to distinguish between different views that fire onClick events.
使用 View.getId() 来区分触发 onClick 事件的不同视图。
@Override
public void onClick(View view) {
switch (view.getId()) {
case R.id.download:
//code..
break;
case R.id.play:
//code..
break;
case R.id.pause:
//code..
break;
default:
//code..
break;
}
}
回答by Cheryl Simon
You can use anonymous inner classes to write an onClick function for each button.
您可以使用匿名内部类为每个按钮编写一个 onClick 函数。
Button button1 = getMyButton();
button1.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// button 1 was clicked!
}
});
Button button2 = getMyButton();
button2.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// button 2 was clicked!
}
});
As Konstantin mentioned, you can also use the passed in View and switch on the id. However, I find that a bit messier if you end up with lots of clickable things.
正如 Konstantin 所提到的，您还可以使用传入的 View 并打开 id。然而，我发现如果你最终得到很多可点击的东西，那就有点麻烦了。
