Question

我正在尝试使用userdata连接Footer，但应用程序正在崩溃。任何人都可以帮忙吗？

登录课程：

public class Login extends Activity {
    EditText fullname, mobilenumber, occupation;
    Button save;
    ImageView ad1, ad2, ad3, ad4, ad5, ad6;
    HorizontalScrollView horizontalScrollView1;

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.userdata);
        fullname = (EditText) findViewById(R.id.fullname);
        mobilenumber = (EditText) findViewById(R.id.mobile);
        occupation = (EditText) findViewById(R.id.occupation);
        save = (Button) findViewById(R.id.btnSave);
        ad1 = (ImageView) ad1.findViewById(R.id.ad1);
        ad2 = (ImageView) ad2.findViewById(R.id.ad2);
        ad3 = (ImageView) ad3.findViewById(R.id.ad3);
        ad4 = (ImageView) ad4.findViewById(R.id.ad4);
        ad5 = (ImageView) ad5.findViewById(R.id.ad5);
        ad6 = (ImageView) ad6.findViewById(R.id.ad6);
        horizontalScrollView1 = (HorizontalScrollView) horizontalScrollView1
                .findViewById(R.id.horizontalScrollView1);
    }
}

fullname，mobilenumber，职业按钮保存，这些来自主要布局和ImageView ad1，ad2，ad3，ad4，ad5，ad6; horizontalScrollView1，这些来自footerlayout。我从主布局调用footer.layout。像这样：

 <include layout="@layout/footer" />

页脚布局在主布局中可见，但应用程序崩溃。不知道为什么!!

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:padding="10dip" >

<!-- Full Name Label -->

<TextView
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="Full Name"
    android:textColor="#372c24"
    tools:ignore="HardcodedText" />

<EditText
    android:id="@+id/fullname"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_marginBottom="10dip"
    android:layout_marginTop="5dip"
    android:singleLine="true" />
<!-- Email Label -->

<TextView
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="Mobile number"
    android:textColor="#372c24"
    tools:ignore="HardcodedText" />

<EditText
    android:id="@+id/mobile"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_marginBottom="10dip"
    android:layout_marginTop="5dip"
    android:singleLine="true"
    android:inputType="phone" />


<!-- Password Label -->

<TextView
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="Occupation"
    android:textColor="#372c24"
    tools:ignore="HardcodedText" />

<EditText
    android:id="@+id/occupation"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_marginTop="10dip"
    android:singleLine="true"
    tools:ignore="TextFields" />

<!-- Register Button -->

<Button
    android:id="@+id/btnSave"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_marginTop="30dip"
    android:text="Save"
    tools:ignore="HardcodedText" />    
<include layout="@layout/footer" /> </LinearLayout><!-- Registration Form Ends -->

log cat

    01-16 15:48:54.048: E/AndroidRuntime(9072): Uncaught handler: thread main exiting due to uncaught exception
01-16 15:48:54.058: E/AndroidRuntime(9072): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.mixorg.parsefooter/com.mixorg.parsefooter.Login}: java.lang.ClassCastException: android.widget.RelativeLayout
01-16 15:48:54.058: E/AndroidRuntime(9072):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2503)
01-16 15:48:54.058: E/AndroidRuntime(9072):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2519)
01-16 15:48:54.058: E/AndroidRuntime(9072):     at android.app.ActivityThread.access$2200(ActivityThread.java:123)
01-16 15:48:54.058: E/AndroidRuntime(9072):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1870)
01-16 15:48:54.058: E/AndroidRuntime(9072):     at android.os.Handler.dispatchMessage(Handler.java:99)
01-16 15:48:54.058: E/AndroidRuntime(9072):     at android.os.Looper.loop(Looper.java:123)
01-16 15:48:54.058: E/AndroidRuntime(9072):     at android.app.ActivityThread.main(ActivityThread.java:4370)
01-16 15:48:54.058: E/AndroidRuntime(9072):     at java.lang.reflect.Method.invokeNative(Native Method)
01-16 15:48:54.058: E/AndroidRuntime(9072):     at java.lang.reflect.Method.invoke(Method.java:521)
01-16 15:48:54.058: E/AndroidRuntime(9072):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
01-16 15:48:54.058: E/AndroidRuntime(9072):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
01-16 15:48:54.058: E/AndroidRuntime(9072):     at dalvik.system.NativeStart.main(Native Method)
01-16 15:48:54.058: E/AndroidRuntime(9072): Caused by: java.lang.ClassCastException: android.widget.RelativeLayout
01-16 15:48:54.058: E/AndroidRuntime(9072):     at com.mixorg.parsefooter.Login.onCreate(Login.java:22)
01-16 15:48:54.058: E/AndroidRuntime(9072):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
01-16 15:48:54.058: E/AndroidRuntime(9072):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2466)
01-16 15:48:54.058: E/AndroidRuntime(9072):     ... 11 more
01-16 15:48:54.088: E/SemcCheckin(9072): Get crash dump level : java.io.FileNotFoundException: /data/semc-checkin/crashdump

Answer 1

你在这里出错：

horizontalScrollView1 = (HorizontalScrollView) horizontalScrollView1
            .findViewById(R.id.horizontalScrollView1);

用以下代替：

horizontalScrollView1 = (HorizontalScrollView)findViewById(R.id.horizontalScrollView1);

试试这个。

Answer 2

试试这个..

将 footer_lay 作为包含布局ID，如下所示

<强> XML

<include 
   android:id="@+id/footer_lay"
   layout="@layout/footer" />

<强>爪哇

并将footer_lay视为LinearLayout并将您的页脚显示为ImageView footer_lay.findViewById(R.id.ad1);，如下面的代码所示

RelativeLayout footer_lay = (RelativeLayout) findViewById(R.id.footer_lay);

ad1= (ImageView) footer_lay.findViewById(R.id.ad1);
ad2= (ImageView) footer_lay.findViewById(R.id.ad2);
ad3= (ImageView) footer_lay.findViewById(R.id.ad3);
ad4= (ImageView) footer_lay.findViewById(R.id.ad4);
ad5= (ImageView) footer_lay.findViewById(R.id.ad5);
ad6= (ImageView) footer_lay.findViewById(R.id.ad6);
horizontalScrollView1=(HorizontalScrollView) footer_lay.findViewById(R.id.horizontalScrollView1);

Answer 3

替换这个：

ad1 = (ImageView) ad1.findViewById(R.id.ad1);
ad2 = (ImageView) ad2.findViewById(R.id.ad2);
ad3 = (ImageView) ad3.findViewById(R.id.ad3);
ad4 = (ImageView) ad4.findViewById(R.id.ad4);
ad5 = (ImageView) ad5.findViewById(R.id.ad5);
ad6 = (ImageView) ad6.findViewById(R.id.ad6);
horizontalScrollView1 = (HorizontalScrollView) horizontalScrollView1
            .findViewById(R.id.horizontalScrollView1);

使用：

ad1 = (ImageView) findViewById(R.id.ad1);
ad2 = (ImageView)findViewById(R.id.ad2);
ad3 = (ImageView)findViewById(R.id.ad3);
ad4 = (ImageView)findViewById(R.id.ad4);
ad5 = (ImageView)findViewById(R.id.ad5);
ad6 = (ImageView)findViewById(R.id.ad6);
horizontalScrollView1 =   
(HorizontalScrollView)findViewById(R.id.horizontalScrollView1);

连接两个布局

3 个答案: