实现了Parcelable接口的类,可以通过Intent.putExtra(String name, Parcelable value)这个方法传递其对象。
android.os.Parcelable
Interface for classes whose instances can be written to and restored from a Parcel. Classes
implementing the Parcelable interface must also have a static field called CREATOR, which is an
object implementing the Parcelable.Creator interface.
A typical implementation of Parcelable is:
public class MyParcelable implements Parcelable {
private int mData;
public int describeContents() {
return 0;
}
public void writeToParcel(Parcel out, int flags) {
out.writeInt(mData);
}
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];
}
};
private MyParcelable(Parcel in) {
mData = in.readInt();
}
}
MyParcelable demo
08-24 23:20:22.161: D/wzf(1893): MyParcelable
08-24 23:20:22.161: D/wzf(1893): writeToParcel
08-24 23:20:22.331: D/wzf(1893): createFromParcel
08-24 23:20:22.331: D/wzf(1893): private MyParcelable
08-24 23:20:22.331: D/wzf(1893): getData
08-24 23:20:22.331: D/wzf(1893): getString