有人知道如何将ArrayList<NameValuePair>
作为额外内容添加到Intent中吗?
ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
nameValuePairs.add(new BasicNameValuePair("first_name", first_name));
nameValuePairs.add(new BasicNameValuePair("last_name", last_name));
nameValuePairs.add(new BasicNameValuePair("email", email));
nameValuePairs.add(new BasicNameValuePair("password", password));
/* Move on to step 2 */
Intent intent = new Intent(RegisterActivity1.this, RegisterActivity2.class);
intent.putExtra("nvp", nameValuePairs);
startActivity(intent);
下面是RegisterActivity2的类声明:
public class RegisterActivity2 extends Activity implements Serializable {
}
logcat中的错误是:
> Parcel: unable to marshal value first_name="whatever"
在执行Ted Hopp的建议后,我仍然得到一个错误。下面是堆栈跟踪:
08-04 22:10:16.095: E/AndroidRuntime(5065): FATAL EXCEPTION: main
> 08-04 22:10:16.095: E/AndroidRuntime(5065):
> java.lang.RuntimeException: Unable to start activity
> ComponentInfo{/.RegisterActivity2}: java.lang.RuntimeException:
> Parcelable encountered IOException reading a Serializable object (name
> = database.NVP) 08-04 22:10:16.095: E/AndroidRuntime(5065): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2070)
> 08-04 22:10:16.095: E/AndroidRuntime(5065): at
> android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2095)
> 08-04 22:10:16.095: E/AndroidRuntime(5065): at
> android.app.ActivityThread.access$600(ActivityThread.java:135) 08-04
> 22:10:16.095: E/AndroidRuntime(5065): at
> android.app.ActivityThread$H.handleMessage(ActivityThread.java:1201)
> 08-04 22:10:16.095: E/AndroidRuntime(5065): at
> android.os.Handler.dispatchMessage(Handler.java:99) 08-04
> 22:10:16.095: E/AndroidRuntime(5065): at
> android.os.Looper.loop(Looper.java:137) 08-04 22:10:16.095:
> E/AndroidRuntime(5065): at
> android.app.ActivityThread.main(ActivityThread.java:4849) 08-04
> 22:10:16.095: E/AndroidRuntime(5065): at
> java.lang.reflect.Method.invokeNative(Native Method) 08-04
> 22:10:16.095: E/AndroidRuntime(5065): at
> java.lang.reflect.Method.invoke(Method.java:511) 08-04 22:10:16.095:
> E/AndroidRuntime(5065): at
> com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:795)
> 08-04 22:10:16.095: E/AndroidRuntime(5065): at
> com.android.internal.os.ZygoteInit.main(ZygoteInit.java:562) 08-04
> 22:10:16.095: E/AndroidRuntime(5065): at
> dalvik.system.NativeStart.main(Native Method) 08-04 22:10:16.095:
> E/AndroidRuntime(5065): Caused by: java.lang.RuntimeException:
> Parcelable encountered IOException reading a Serializable object (name
> = database.NVP) 08-04 22:10:16.095: E/AndroidRuntime(5065): at android.os.Parcel.readSerializable(Parcel.java:2144) 08-04
> 22:10:16.095: E/AndroidRuntime(5065): at
> android.os.Parcel.readValue(Parcel.java:2016) 08-04 22:10:16.095:
> E/AndroidRuntime(5065): at
> android.os.Parcel.readListInternal(Parcel.java:2235) 08-04
> 22:10:16.095: E/AndroidRuntime(5065): at
> android.os.Parcel.readArrayList(Parcel.java:1655) 08-04 22:10:16.095:
> E/AndroidRuntime(5065): at
> android.os.Parcel.readValue(Parcel.java:1986) 08-04 22:10:16.095:
> E/AndroidRuntime(5065): at
> android.os.Parcel.readMapInternal(Parcel.java:2226) 08-04
> 22:10:16.095: E/AndroidRuntime(5065): at
> android.os.Bundle.unparcel(Bundle.java:223) 08-04 22:10:16.095:
> E/AndroidRuntime(5065): at
> android.os.Bundle.getSerializable(Bundle.java:1254) 08-04
> 22:10:16.095: E/AndroidRuntime(5065): at
> android.content.Intent.getSerializableExtra(Intent.java:4268) 08-04
> 22:10:16.095: E/AndroidRuntime(5065): at
> .RegisterActivity2.onCreate(RegisterActivity2.java:24) 08-04
> 22:10:16.095: E/AndroidRuntime(5065): at
> android.app.Activity.performCreate(Activity.java:5244) 08-04
> 22:10:16.095: E/AndroidRuntime(5065): at
> android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1082)
> 08-04 22:10:16.095: E/AndroidRuntime(5065): at
> android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2034)
> 08-04 22:10:16.095: E/AndroidRuntime(5065): ... 11 more 08-04
> 22:10:16.095: E/AndroidRuntime(5065): Caused by:
> java.io.InvalidClassException:
> org.apache.http.message.BasicNameValuePair; IllegalAccessException
> 08-04 22:10:16.095: E/AndroidRuntime(5065): at
> java.io.ObjectStreamClass.resolveConstructorClass(ObjectStreamClass.java:694)
> 08-04 22:10:16.095: E/AndroidRuntime(5065): at
> java.io.ObjectStreamClass.newInstance(ObjectStreamClass.java:655)
> 08-04 22:10:16.095: E/AndroidRuntime(5065): at
> java.io.ObjectInputStream.readNewObject(ObjectInputStream.java:1816)
> 08-04 22:10:16.095: E/AndroidRuntime(5065): at
> java.io.ObjectInputStream.readNonPrimitiveContent(ObjectInputStream.java:787)
> 08-04 22:10:16.095: E/AndroidRuntime(5065): at
> java.io.ObjectInputStream.readObject(ObjectInputStream.java:2003)
> 08-04 22:10:16.095: E/AndroidRuntime(5065): at
> java.io.ObjectInputStream.readObject(ObjectInputStream.java:1960)
> 08-04 22:10:16.095: E/AndroidRuntime(5065): at
> android.os.Parcel.readSerializable(Parcel.java:2142) 08-04
> 22:10:16.095: E/AndroidRuntime(5065): ... 23 more
发布于 2014-07-23 05:49:26
我也遇到了同样的问题,尝试在ArrayList中发送对象,而不是在Object类中实现Seiralizable。
最快捷的解决方案是将ArrayList封装在捆绑包中。
因此,在第一个活动->中
ArrayList<Object> objects = new ArrayList<Object>();
// Object class does not implement Serializable interface
Bundle extra = new Bundle();
extra.putSerializable("objects", objects);
Intent intent = new Intent(getBaseContext(), ShowSpread.class);
intent.putExtra("extra", extra);
第二个活动->
Bundle extra = getIntent().getBundleExtra("extra");
ArrayList<Object> objects = (ArrayList<Object>) extra.getSerializable("objects")
工作正常。
发布于 2013-08-05 11:25:07
您需要将对象数组作为Serializable传递给intent。Object数组必须由反过来可序列化的对象组成。
ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
nameValuePairs.add(new BasicNameValuePair("first_name", first_name));
nameValuePairs.add(new BasicNameValuePair("last_name", last_name));
nameValuePairs.add(new BasicNameValuePair("email", email));
nameValuePairs.add(new BasicNameValuePair("password", password));
在这里,BaseNameValuePair
需要是一个实现Serializable
的类。使用ArrayList
的toArray
放入put,然后使用将其类型转换为Serializable
。在getter活动中,对intent使用getSerializable
方法。
发布于 2013-08-05 11:06:43
要使其起作用,列表中包含的泛化类型必须实现Serializable
。
https://stackoverflow.com/questions/18050030
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