發送到另一個片段後，捆綁的對象顯示爲空android

Question

我正在開發android應用程序.I將Fragment類擴展到我的應用程序中的所有java類。我想從片段發送數據到另一個片段（AllDeals-> CarDetails）.For發送數據我創建parcelable類對象，並將此對象發送到另一個fragment.But在新的片段，它總是顯示空數據。我嘗試了很多時間，但我沒有成功。我已經很多次在這個，所以我決定發佈問題。所以我請你解決我的問題。 我初始化CarBean像

obj = new CarBean(); 
     obj.setName("deepak"); 
     obj.setPrize(txt_carprize.getText().toString()); 
     obj.setAvgPrize(txt_vat.getText().toString()); 
     obj.setImage("R.drawable.img"+currentposition); 

這裏是我的代碼

public class AllDeals extends BaseFragment implements OnClickListener 
{ 
    android.support.v4.app.FragmentManager fragmentManager = getFragmentManager(); 
    android.support.v4.app.FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction(); 
    BaseFragment fragment = new AllDeals(); 
    bundle.putParcelable("cardetails", obj); 
    fragment.setArguments(bundle); 

    fragmentTransaction.commit(); 
    } 

這個類我讀了捆綁對象

public class CarDetails extends BaseFragment implements OnClickListener 
{ 
Bundle bundledata=getArguments(); 
CarBean carbean=bundledata.getParcelable("cardetails"); 
String name=carbean.getName(); 
} 

，這裏是Java bean類

public class CarBean implements Parcelable 
{ 
    String name,prize,avgprize,image; 



    public CarBean(Parcel in) 
     { 
      name=in.readString(); 
      prize=in.readString(); 
      avgprize=in.readString(); 
      image=in.readString(); 
     } 
    public CarBean() 
    { 
     // TODO Auto-generated constructor stub 
    } 
    public void setName(String name) 
    { 
     this.name=name; 
    } 
    public String getName() 
    { 
     return name; 
    } 

    public void setPrize(String prize) 
    { 
     this.prize=prize; 
    } 
    public String getPrize() 
    { 
     return prize; 
    } 
    public void setAvgPrize(String avgprize) 
    { 
     this.avgprize=avgprize; 
    } 

    public String getAvgPrize() 
    { 
     return avgprize; 
    } 

    public void setImage(String image) 
    { 
     this.image=image; 

    } 

    public String getImage() 
    { 
     return image; 
    } 

    @Override 
    public int describeContents() 
    { 
     // TODO Auto-generated method stub 
     return 0; 
    } 

    /* 
    here we store the data into parcle object 

    */ 
    @Override 
    public void writeToParcel(Parcel out, int flags) 
    { 
     // TODO Auto-generated method stub 
     out.writeString(name); 
     out.writeString(prize); 
     out.writeString(avgprize); 
     out.writeString(image); 
    } 


    /* retrive the data from parcel object */ 






    public static final Parcelable.Creator<CarBean> CREATOR = new Parcelable.Creator<CarBean>() 
      { 

       @Override 
       public CarBean createFromParcel(Parcel in) 
       { 
        // TODO Auto-generated method stub 
        /* this method call CarBean Constructor */ 

        return new CarBean(in); 
       } 

       @Override 
       public CarBean[] newArray(int size) 
       { 
        // TODO Auto-generated method stub 
        return new CarBean[size]; 
       } 
    }; 
} 

Answer 1

Pri nt /在此之前記錄您的obj

bundle.putParcelable("cardetails", obj); 

確保它不爲空。