android：onClick不适用于Android 4.0.3

我在Android API 15中遇到了一个简单视图的奇怪问题。在此视图中，我有一个包含2个菜单项的简单菜单。此代码工作正常与其他Android API而不是在这款手机采用Android 4.0.3：android：onClick不适用于Android 4.0.3

<?xml version="1.0" encoding="utf-8"?> 
<menu xmlns:android="http://schemas.android.com/apk/res/android"> 
    <item 
     android:id="@+id/root_menu" 
     android:icon="@android:drawable/ic_menu_help" 
     android:showAsAction="always" 
     android:title="Help"> 
     <menu> 
      <item 
       android:id="@+id/menu_about" 
       android:onClick="aboutDialog" 
       android:showAsAction="never" 
       android:title="About"/> 
     </menu> 
    </item> 
</menu>

这是活动

public class HomeActivity extends Activity { 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.home); 
    } 

    /** 
    * Crea l'action bar 
    * 
    * @param menu 
    * @return 
    */ 
    @Override 
    public boolean onCreateOptionsMenu(Menu menu) { 
     MenuInflater inflater = getMenuInflater(); 
     inflater.inflate(R.menu.main_actionbar, menu); 
     return true; 
    } 

    /** 
    * Apertura del dialog box con le informazioni sulla versione del programma 
    * 
    * @param v 
    */ 
    public void aboutDialog(MenuItem v) { 
     AlertDialog.Builder builder = new AlertDialog.Builder(this); 
     builder.setMessage("Test") 
       .setPositiveButton("Ok", new DialogInterface.OnClickListener() { 
        public void onClick(DialogInterface dialog, int id) { 
         // FIRE ZE MISSILES! 
        } 
       }) 
       .setNegativeButton("No", new DialogInterface.OnClickListener() { 
        public void onClick(DialogInterface dialog, int id) { 
         // User cancelled the dialog 
        } 
       }); 
     // Create the AlertDialog object and return it 
     builder.create().show(); 
    } 
}

所以没有什么在此代码奇怪。但是，当我尝试在设备上运行我有此异常：

android.view.InflateException: Couldn't resolve menu item onClick handler 
    aboutDialog in class android.view.ContextThemeWrapper 

     at android.view.MenuInflater$InflatedOnMenuItemClickListener.<init> (MenuInflater.java:202) 
     at android.view.MenuInflater$MenuState.setItem(MenuInflater.java:402) 
     at android.view.MenuInflater$MenuState.addItem(MenuInflater.java:436) 
     at android.view.MenuInflater.parseMenu(MenuInflater.java:173) 
     at android.view.MenuInflater.parseMenu(MenuInflater.java:151) 
     at android.view.MenuInflater.inflate(MenuInflater.java:95) 
     at 
     it.mobile.activity.home.HomeActivity.onCreateOptionsMenu(HomeActivity.java:38) 
     at android.app.Activity.onCreatePanelMenu(Activity.java:2444) 
     at com.android.internal.policy.impl.PhoneWindow.preparePanel(PhoneWindow.java:388) 
     at com.android.internal.policy.impl.PhoneWindow.invalidatePanelMenu(PhoneWindow.java:739) 
     at com.android.internal.policy.impl.PhoneWindow$1.run(PhoneWindow.java:2833) 
     at android.os.Handler.handleCallback(Handler.java:605) 
     at android.os.Handler.dispatchMessage(Handler.java:92) 
     at android.os.Looper.loop(Looper.java:137) 
     at android.app.ActivityThread.main(ActivityThread.java:4424) 
     at java.lang.reflect.Method.invokeNative(Native Method) 
     at java.lang.reflect.Method.invoke(Method.java:511) 
     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784) 
     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551) 
     at dalvik.system.NativeStart.main(Native Method) 

Caused by: java.lang.NoSuchMethodException: aboutDialog 
[interface android.view.MenuItem] 
     at java.lang.Class.getConstructorOrMethod(Class.java:460) 
     at java.lang.Class.getMethod(Class.java:915) 
     at android.view.MenuInflater$InflatedOnMenuItemClickListener.<init>

但我不明白问题出在哪里。与另一个设备都工作正常！

来源

2014-01-30 drenda

因为参数去除android:theme得到周围它，在你aboutDialog方法你有一个参数菜单项并只能用onclick它不会工作 – Mert

检查导入 – Blackbelt

不知道如何用xml来解决它。从代码角度来看，您将必须实现
public boolean onOptionsItemSelected(MenuItem item) 然后根据菜单项调用所需的处理程序。

来源

2014-01-30 13:36:54 gvmani

虽然这是过时的，但这是异常的原因。当你看着班上的Android API 15（4.0.3-4.0.4）来源MenuInflator你会看到这样的方法：

public InflatedOnMenuItemClickListener(Context context, String methodName) { 
mContext = context; 
Class<?> c = context.getClass(); 
try { 
    mMethod = c.getMethod(methodName, PARAM_TYPES); 
} catch (Exception e) { 
    InflateException ex = new InflateException(
      "Couldn't resolve menu item onClick handler " + methodName + 
      " in class " + c.getName()); 
    ex.initCause(e); 
    throw ex; 
}

这是例外情况。正如我们所看到的，该方法试图在传递的上下文项的类上找到回调方法。因此，不要在onCreateOptionsMenu中调用getMenuInflator()，而应该调用new MenuInflator(this)，以便this作为上下文传递，然后代码将工作。

另一个错误修复是从清单中删除主题，我仍然非常迷惑为什么这样工作。但是，这只是一个解决方法。

来源

2014-07-01 18:37:31 findusl

我有类似的问题，我发现这个在这里 - https://code.google.com/p/android/issues/detail?id=62795

This is affecting Android 5.0 when applying the android:theme attribute. 


     <Button 
      android:theme="@android:style/Theme.Material" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:onClick="onLoginEmail" 

Clicking on the button throws 
    java.lang.IllegalStateException: Could not find a method onLoginEmail(View) in the activity class android.view.ContextThemeWrapper for onClick handler on view class android.widget.Button 
      at android.view.View$1.onClick(View.java:3994) 
      at android.view.View.performClick(View.java:4756) 
      at android.view.View$PerformClick.run(View.java:19749) 
      at android.os.Handler.handleCallback(Handler.java:739) 
      at android.os.Handler.dispatchMessage(Handler.java:95) 
      at android.os.Looper.loop(Looper.java:135) 
      at android.app.ActivityThread.main(ActivityThread.java:5221) 
      at java.lang.reflect.Method.invoke(Native Method) 
      at java.lang.reflect.Method.invoke(Method.java:372) 
      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899) 
      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694) 
    Caused by: java.lang.NoSuchMethodException: onLoginEmail [class android.view.View] 
      at java.lang.Class.getMethod(Class.java:664) 
      at java.lang.Class.getMethod(Class.java:643) 
      at android.view.View$1.onClick(View.java:3987) 
      at android.view.View.performClick(View.java:4756) 
      at android.view.View$PerformClick.run(View.java:19749) 
      at android.os.Handler.handleCallback(Handler.java:739) 
      at android.os.Handler.dispatchMessage(Handler.java:95) 
      at android.os.Looper.loop(Looper.java:135) 
      at android.app.ActivityThread.main(ActivityThread.java:5221) 
      at java.lang.reflect.Method.invoke(Native Method) 
      at java.lang.reflect.Method.invoke(Method.java:372) 
      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899) 
      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694) 
      />

我从TextView

来源

2015-03-13 05:10:53

android：onClick不适用于Android 4.0.3

回答

相关问题