Passing object between activity

mac_fly · by **mac_fly** » Mon May 12, 2008 5:57 pm

Hello,

My first activity list file wich are store in the phone and the second activity display all picture file.

The second activity need a list of file(

Syntax: [ Download ] [ Hide ]

Using java Syntax Highlighting

File[] myfile
Parsed in 0.029 seconds,  using GeSHi 1.0.8.4

). How can i start the second activity with the argument myfile.

Thanks.

tum0rc0re · by **tum0rc0re** » Mon May 12, 2008 8:50 pm

Send one parameter:

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Using java Syntax Highlighting

Intent newIntent = new Intent(this, SecondActivity.class);
 
newIntent.putExtra(“file”, filename);
 
startSubActivity(newIntent, 0);
Parsed in 0.030 seconds,  using GeSHi 1.0.8.4

Get this parameter:

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Bundle extras = getIntent().getExtras();
 
if (extras != null) {
 
   String myfilename = extras.getString(“file”);
 
}
Parsed in 0.034 seconds,  using GeSHi 1.0.8.4

But I don't know how send total array as in your case

mac_fly · by **mac_fly** » Tue May 13, 2008 9:57 am

Hello,

I have already try your solution and i don't want to get a string but an object of type File or FILE[] so i try that :

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        Bundle extras = getIntent().getExtras();
 
        if (extras != null) {
 
           myfile = (File[])extras.get("file");
 
        }
 
Parsed in 0.034 seconds,  using GeSHi 1.0.8.4

and i have an exception about the cast.

Anybody know how to pass object between activity ?

bavarol · by **bavarol** » Thu May 29, 2008 10:29 am

Hi mac_fly,
I have the same problem, I have tried this:

In the invoking Activity

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        Intent intent = new Intent(Class1.this, Class2.class);
 
        intent.putExtra("object", obj);
 
        startSubActivity(intent, 0);
 
Parsed in 0.035 seconds,  using GeSHi 1.0.8.4

And then in the invoked Activity

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Using java Syntax Highlighting

 
        Bundle bundle = this.getIntent().getExtras();
 
        if ( bundle != null ) {
 
                Object obj = bundle.get("object");  // It comes here an error <img src="http://www.anddev.org/images/smilies/sad.png" alt=":(" title="Sad" />
 
        }
 
Parsed in 0.036 seconds,  using GeSHi 1.0.8.4

But I get an error in the invoked Activity:

Code: Select all: The Methode get(String) is undefined for the Type Bundle

Kind Regards

Bavarol

Ps:I have the SDK m3rc22a

libertino · by **libertino** » Thu May 29, 2008 6:51 pm

mac_fly wrote:Hello,

My first activity list file wich are store in the phone and the second activity display all picture file.

The second activity need a list of file(
Syntax: [ Download ] [ Hide ]
Syntax: [ Download ] [ Show ]
Using java Syntax Highlighting
File[] myfile

Parsed in 0.035 seconds, using GeSHi 1.0.8.4
). How can i start the second activity with the argument myfile.

Thanks.

I would suggest using local service, as I do in my application

bavarol · by **bavarol** » Fri May 30, 2008 12:00 pm

Hi,
you don't need services, you should see how it's implemented the class of your object, i.e. if you'd want to pass a Bitmap, then you should look at the interface, it implements, in this case is Parcelable, in other cases Serializable and there are methods in Bundle to put a Parcelable and a Serializable Object different to primitive Types like putString, putLong, etc..

I must develop under m3rc22a cause requisites of my Project but if you develop under m5, I can tell you, you can use the method put...(...) and get(String), which delivers an Object, you just need a Casting of this call.

I hope, I could help you.

Regards

Jesmiatka · by **Jesmiatka** » Fri May 30, 2008 12:47 pm

I am not sure, but I think passing objects in m5 doesn't work either..
At least the Serializable I tried some time ago didn't work..

Greetz,
Mike

bavarol · by **bavarol** » Fri May 30, 2008 2:32 pm

I have done this with a Bitmap Jesmiatka and it worked with Parcelable, I don't know if it work with Serializable

I have not tried, my SDK is m3rc22a

Cheers

Passing object between activity

Passing object between activity

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