其他分享
首页 > 其他分享> > android – 如何将非parcelable对象从活动传递到另一个活动?

android – 如何将非parcelable对象从活动传递到另一个活动?

作者:互联网

我有两个对象从两个不同的类实例化,这两个类不实现parcelable或serializable.我希望tp将这些对象传递给
另一个活动,所以我写了下面的代码:

*码:

 //send object
 Intent intConnect = new Intent(mCtx.getApplicationContext(), ActConnect.class);
            Bundle bndConnect = new Bundle();
            bndConnect.putParcelable("HeaderModel", (Parcelable) mHeaderModel);
            bndConnect.putParcelable("DetailsModel", (Parcelable) mDetailsModel);
            intConnect.putExtras(bndConnect);
            intConnect.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            mCtx.startActivity(intConnect);

//receive objects in the receiving activity
 Bundle extras = getIntent().getExtras();
    Header headerModel = (Header) extras.get("HeaderModel");
    Details detailsModel = (Details) extras.get("DetailsModel");

但在运行时,我收到以下logcat:

logcat的:

10-08 11:55:44.225  13138-13138/com.example.com.bt_11 E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.example.com.bt_11, PID: 13138
java.lang.ClassCastException: com.example.com.adapter.Header cannot be cast to android.os.Parcelable
        at com.example.com.adapter.MyExpandableList$1.onClick(MyExpandableList.java:152)
        at android.view.View.performClick(View.java:5184)
        at android.view.View$PerformClick.run(View.java:20893)
        at android.os.Handler.handleCallback(Handler.java:739)
        at android.os.Handler.dispatchMessage(Handler.java:95)

如何将非可分配对象从活动传递到另一个活动?

解决方法:

你可以这样做:

您的Model类如下所示:

public class ModelClass implements Serializable{

  // Other stuff

}

如何通过:

Intent mIntent = new Intent(mContext, NextActivity.class);
mIntent.putExtra("HeaderModel", mHeaderModel);
startActivity(mIntent);

如何获得:

Header headerModel = (Header) getIntent.getSerializableExtra("HeaderModel");

希望这会帮助你.

标签:android,android-intent,bundle,start-activity
来源: https://codeday.me/bug/20190628/1314739.html