Android(安卓)通过Intent 传递对象

If you're just passing objects around then Parcelable was designed for this. It requires a little more effort to use than using Java's native serialization, but it's way faster (and I mean way,WAY faster).

From the docs, a simple example for how to implement is:

// simple class that just has one member property as an example public class MyParcelable implements Parcelable {   private int mData;   /* everything below here is for implementing Parcelable */   // 99.9% of the time you can just ignore this   public int describeContents() {     return 0;   }   // write your object's data to the passed-in Parcel   public void writeToParcel(Parcel out, int flags) {     out.writeInt(mData);   }   // this is used to regenerate your object. All Parcelables must have a CREATOR that implements these two methods   public static final Parcelable.Creator<MyParcelable> CREATOR = new Parcelable.Creator<MyParcelable>() {     public MyParcelable createFromParcel(Parcel in) {       return new MyParcelable(in);     }     public MyParcelable[] newArray(int size) {       return new MyParcelable[size];     }   };   // example constructor that takes a Parcel and gives you an object populated with it's values   private MyParcelable(Parcel in) {     mData = in.readInt();   } }

Once you have your objects implement Parcelable it's just a matter of putting them into yourIntents with putExtra():

Intent i = new Intent(); i.putExtra("name_of_extra", myParcelableObject);

Then you can pull them back out with getParcelableExtra():

Intent i = getIntent(); MyParcelable myParcelableObject = (MyParcelable) i.getParcelableExtra("name_of_extra");

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