如何使用XML的onClick片段内，以处理按钮点击 [英] How to handle button clicks using the XML onClick within Fragments

问题描述

pre-蜂巢（Android的＆NBSP; 3），每个活动获得登记，通过在布局的XML中的的onClick 标签来处理按钮点击：

Pre-Honeycomb (Android 3), each Activity was registered to handle button clicks via the onClick tag in a Layout's XML:

android:onClick="myClickMethod"

之内，你可以使用这个方法 view.getId（）和switch语句做的按钮逻辑。

Within that method you can use view.getId() and a switch statement to do the button logic.

通过引进蜂窝我打破这些活动成了碎片，可里面的许多不同的活动中重复使用。大部分按钮的行为是活动独立的，我想code驻留在片段内文件的没有的使用注册<$旧（pre 1.6）的方法C C> OnClickListener $每个按钮。

With the introduction of Honeycomb I'm breaking these Activities into Fragments which can be reused inside many different Activities. Most of the behavior of the buttons is Activity independent, and I would like the code to reside inside the Fragments file without using the old (pre 1.6) method of registering the OnClickListener for each button.

final Button button = (Button) findViewById(R.id.button_id);
button.setOnClickListener(new View.OnClickListener() {
    public void onClick(View v) {
        // Perform action on click
    }
});

现在的问题是，当我布置的充气它仍然是托管的活动正在接收按钮点击，而不是单独的片段。有没有好的方法为

The problem is that when my layout's are inflated it is still the hosting Activity that is receiving the button clicks, not the individual Fragments. Is there a good approach to either

• 注册片段接收按钮的点击？
• 从传递活动的点击事件，他们属于哪一种？片段

推荐答案

您可能只是做到这一点：

You could just do this:

活动：

Fragment someFragment;    

...onCreate etc instantiating your fragments

public void myClickMethod(View v) {
    someFragment.myClickMethod(v);
}

片段：

public void myClickMethod(View v) {
    switch(v.getId()) {
        // Just like you were doing
    }
}    

---

在回应@Ameen谁想要更少的耦合，片段重复使用

---

In response to @Ameen who wanted less coupling so Fragments are reuseable

接口：

public interface XmlClickable {
    void myClickMethod(View v);
}

活动：

XmlClickable someFragment;    

...onCreate, etc. instantiating your fragments casting to your interface.

public void myClickMethod(View v) {
    someFragment.myClickMethod(v);
}

片段：

public class SomeFragment implements XmlClickable {

...onCreateView, etc.

@Override
public void myClickMethod(View v) {
    switch(v.getId()){
        // Just like you were doing
    }
}    

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