如何在Android中将gson序列化对象传递给Intent? [英] How to pass gson serialised object to Intent in android?
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问题描述
我试图通过使用下面的代码将gson序列化对象传递给intent
intent.putExtra(com.example, VO); // vo是gson序列化的对象。
但它是抛出运行时异常,请帮忙。
java.lang.RuntimeException:遇到Parcelable IOException写入可序列化的对象(name = com.example.da)
at android.os.Parcel.writeSerializable (Parcel.java:1285)
at android.os.Parcel.writeValue(Parcel.java:1233)
at android.os.Parcel.writeMapInternal(Parcel.java:591)
at android.os.Bundle.writeToParcel(Bundle.java:1646)
at android.os.Parcel.writeBundle(Parcel.java:605)
at android.content.Intent.writeToParcel(Intent.java: 6831)
at android.app.ActivityManagerProxy.startActivity(ActivityManagerNative.java:1927)
at android.app.Instrumentation.execStartActivity(Instrumentation.java:1419)
at android.app.Activity .startActivityForResult(Activity.java:3390)$ android
.app.Activity.startActivityForResult(Activity.java:3351)
at android.app.Activity.startActivity(Activity.java:3587)
at android.app.Activity.startActivity(Activity.java:3555 )
解决方案
不,您正在以错误的方式使用它。
将对象置于意图中:
Gson gson =新的Gson();
Intent intent = new Intent(Source.this,Target.class);
intent.putExtra(obj,gson.toJson(yourObject));
并在另一个活动中获取对象为:
Gson gson = new Gson();
String strObj = getIntent()。getStringExtra(obj);
SourceObject obj = gson.fromJson(strObj,SourceObject.class);
i am trying to pass the gson serialised object to intent by using the below code
intent.putExtra("com.example", vo); // vo is the gson serialised object.
but it is throwing the run time exception, Please help.
java.lang.RuntimeException: Parcelable encountered IOException writing serializable object (name = com.example.d.a)
at android.os.Parcel.writeSerializable(Parcel.java:1285)
at android.os.Parcel.writeValue(Parcel.java:1233)
at android.os.Parcel.writeMapInternal(Parcel.java:591)
at android.os.Bundle.writeToParcel(Bundle.java:1646)
at android.os.Parcel.writeBundle(Parcel.java:605)
at android.content.Intent.writeToParcel(Intent.java:6831)
at android.app.ActivityManagerProxy.startActivity(ActivityManagerNative.java:1927)
at android.app.Instrumentation.execStartActivity(Instrumentation.java:1419)
at android.app.Activity.startActivityForResult(Activity.java:3390)
at android.app.Activity.startActivityForResult(Activity.java:3351)
at android.app.Activity.startActivity(Activity.java:3587)
at android.app.Activity.startActivity(Activity.java:3555)
解决方案
No you are using it in the wrong way.
Put the object in the intent as:
Gson gson = new Gson();
Intent intent = new Intent(Source.this, Target.class);
intent.putExtra("obj", gson.toJson(yourObject));
and get the object in another activity as:
Gson gson = new Gson();
String strObj = getIntent().getStringExtra("obj");
SourceObject obj = gson.fromJson(strObj, SourceObject.class);
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