无法从我的Button ImageView接收点击事件，让HomeScreen扩展MyActivity

Question

我没有从我的按钮接收点击事件。我想知道为什么。

我有一个LinearLayout，操作栏的顶部有一个include布局，下面我有一个按钮。我无法接收

的活动

1. 操作栏上的“mylocation图标”，位于
下方
2. 下一步按钮
3. 放大/缩小按钮

我在这里缺少什么？



主要布局location.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >

    <include
        android:id="@+id/actionbar"
        android:layout_alignParentTop="true"
        layout="@layout/actionbar" />

    <Button
        android:id="@+id/next"
        <!-- removed unnecesary attr's -->        
        android:background="#f6461d"
        android:clickable="true"
        android:enabled="true"
        android:text="Next"/>

</RelativeLayout>

操作栏

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_alignParentTop="true"
    android:background="#EEeeeee4"
    <!-- removed unnecesary attr's --> >

    <LinearLayout
        <!-- removed unnecesary attr's --> 
        android:orientation="horizontal" >

        <Button
            android:id="@+id/icruiseon"
            <!-- removed unnecesary attr's --> 
            android:background="@drawable/curbcablogo" />

        <Button
            android:id="@+id/refresh"
            <!-- removed unnecesary attr's --> 
            android:background="@drawable/refresh" />

        <ImageView
            android:id="@+id/connectStatus"
            <!-- removed unnecesary attr's --> 
            android:src="@drawable/disconnect" />

        <ImageView
            android:id="@+id/busy"
            <!-- removed unnecesary attr's --> 
            android:clickable="false"
            android:src="@drawable/busy" />

        <TextView
            android:id="@+id/subscriberInbox"
            <!-- removed unnecesary attr's --> 
            android:background="@drawable/incomingprovider" />
    </LinearLayout>

    <LinearLayout
            <!-- removed unnecesary attr's -->  >

        <TextView
            android:id="@+id/currentAddress"
            <!-- removed unnecesary attr's --> 
            android:text="Receiving address....." />

        <ImageView
            android:id="@+id/whereAmI"
            <!-- removed unnecesary attr's --> 
            android:src="@drawable/mylocation" />
    </LinearLayout>

</LinearLayout>

我的活动文件

public class MyActivity {
onCreate() {
    setContentView(R.layout.location) ;

        next = (Button) this.findViewById(R.id.next);
        next.setOnClickListener(this);

        whereAmI = (ImageView) this.findViewById(R.id.whereAmI);
        whereAmI.setOnClickListener(this) ;

@Override
    public void onClick(View v) {
        if (v == next) {
            Toast.makeText(this, "searching", Toast.LENGTH_LONG).show() ;
            new Search(this, source, destination).execute(null);
        } else if (v == whereAmI) {
            Toast.makeText(this, "centering", Toast.LENGTH_LONG).show() ;
            location.getController().setCenter(source);
            new GetGeoAddress(this, source).execute(null);
        }
    }

AnotherActivity

public class HomeActivity extends MyActivity {
onCreate() {
      //No setContentView here ; I expect that the super class MyActivity will setContentView.

编辑：从布局和代码中删除MapView，以消除和调试。我仍然没有得到点击事件。我在这里缺少什么？

编辑2：上面添加了更多更改，我怀疑这与Activity Inheritance有关。我知道我错过了一些基本的东西。它是什么？

Answer 1

修正了问题。活动之间的继承会混淆onClickListner。

<强>父类

public class SuperClass extends Activity implements OnClickListner {
     public onCreate() {
         setContentView(R.layout.layoutwithView_ABC) ;
         ABC.setOnClickListener(this) ;
     ...
     public void onClick() {
         Toast ("this wont show up") ;
     }
     ...
}

SubClass，作为清单文件的第一个活动

public class SubClass extends SuperClass implements OnClickListner {
     public onCreate() {
         //NOT init here, setContentView(R.layout.layoutwithView_ABC) ;
     ...
     public void onClick() {
         Toast ("will show up") ;
     }
     ...
}

希望我已经正确地代表了答案。即使我在超类中使用了setOnClickListerer for ABC，也会调用onClick of SubClass，因为它的“覆盖”，简单答案。