parcelable

问题 Is it possible to to put an object of type Object into an intent as a Extra? I have a variable of type object and won't know until it is assigned a value as to what the object datatype is. Maybe something to do with serialization or as a bundle i'm not sure? And then in the next activity how do I then get this value in order to store it in an ArrayList<Object> ? 回答1: Bundle by way of Intent#putExtra does not have any function to add an Object . You can only pass in a Parcelable or a

问题 Hi everybody i have build a class that implements Parcelable but one of the arraylist attributes i have define gets empty when i read the class. Here is the code package roblestech.laCartelera; import java.util.ArrayList; import android.os.Parcel; import android.os.Parcelable; public class ProgramacionPelicula implements Parcelable { public ProgramacionPelicula() { } public ProgramacionPelicula(Pelicula pelicula) { _pelicula = pelicula; } public ProgramacionPelicula(Cine cine) { _cine = cine;

问题 I have an application that uses a service to create an ArrayList of custom objects (MyObject) every x seconds. I then want my Activity to obtain this ArrayList. I'm currently planning on having the Service send a message to the Activity's handler every time it finishes the query for the data. I want the message to the Handler to contain the ArrayList of MyObjects. When building the method in the Activity to get this ArrayList out of the message, I noticed that I couldn't. If I tried msg

问题 I want to pass a data class (that contains list of int as a property) to other activity through Bundle and therefore i need to add Parcelable implementation to my data class. any idea about how to parcel this property? data class Test(val id: Long, val files: List<Int>?) : Parcelable { constructor(parcel: Parcel) : this( parcel.readLong(), TODO("files")) override fun writeToParcel(parcel: Parcel, flags: Int) { parcel.writeLong(id) } override fun describeContents(): Int { return 0 } companion

问题 I was using a serializable class for I save the xml parser result, but when I read that It is very slow in Android, I changed to parcelable class. Now, I want to save the content parcelable class into file. How can I do it? Thanks. Regards. 回答1: According to Parcel API reference Parcel is not a general-purpose serialization mechanism. This class (and the corresponding Parcelable API for placing arbitrary objects into a Parcel) is designed as a high-performance IPC transport. As such, it is

问题 This question already has answers here : Save Bundle to SharedPreferences [duplicate] (3 answers) Closed 6 years ago . I want to store a custom object (let's call it MyObject) permanently so that if it is deleted from memory, I can reload it in my Activity / Fragment onResume() method when the app starts again. How can I do that? SharedPreferences doesn't seem to have a method for storing parcelable objects. 回答1: If you need to store it in SharedPreferences, you can parse your object to a

问题 I have a class where i have an Drawable as an member. This class i am using for sending data across activities as an Parcelable extra. For that i have extended the parceble, and implemented the required functions. I am able to send the basic data types using read/write int/string. But i am facing problem while marshaling the Drawable object. For that i tried to convert the Drawable to byte array , but i am getting class cast Exceptions. I am using following code to covert my Drawable to Byte

问题 Filing bug to YouTube Android Player API Library engineers: see android-youtube-api tag Over the course of the past week and a half, I've noticed this weird BadParcelableException steadily increasing in our app and have nailed it down to YouTube's new release on android. This crash will occur if your app is playing a youtube video, bringing your app to background, force stopping the Youtube app, and resuming your app again. Crash reproducible on Youtube version 12.19.56. Also tested on an

问题 import android.os.Parcel; import android.os.Parcelable; public class MClass implements Parcelable { private byte[] _byte; public MClass() { } public MClass(Parcel in) { readFromParcel(in); } public byte[] get_byte() { return _byte; } public void set_byte(byte[] _byte) { this._byte = _byte; } public int describeContents() { return 0; } public void writeToParcel(Parcel dest, int flags) { dest.writeByteArray(_byte); } public void readFromParcel(Parcel in) { in.readByteArray(_byte); //LOE - Line

问题 When I run my project from debug everything works fine. However when I run it with the signed apk I generated from Android Studio (using proguard), I get the following errors when using getParcelable: java.lang.RuntimeException: Unable to start activity ComponentInfo{mypackage.android/mypackage.mobile.android.activities.searchActivity}: android.os.BadParcelableException: Parcelable protocol requires a Parcelable.Creator object called CREATOR on class mypackage.android.a.d.a Why does this