I have a problem with the startActivityForResult function?
My code:
CODE:..........
But the second intent is only starting and if i finish the second intent (getPicture), the first intent is called. Why?
The logcat shows:
CODE:.......
So why the savefilename-activity doesn't start first?
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I have MainActivity which is an Activity and other class(which is a simple java class), we`ll call it "SimpleClass".
now i want to run from that class the command startActivityForResult.
now i though that i could pass that class(SimpleClass), only MainActivity's context, problem is that, u Cant run context.startActivityForResult(...);
so the only way making SimpleClass to use 'startActivityForResult; is to pass the reference of MainActivity as an Activity variable to the SimpleClass
something like that:
inside the MainActivity class i create the instance of SimpleClass this way:
SimpleClass simpleClass=new SimpleClass(MainActivity.this);
now this is how SimpleClass looks like: code...
now its working, but isnt a proper way of doing this? I`am afraid i could have some memory leaks in the future.
I have two buttons in an activity/view A0, b1 and b2 that respectively starts (for result) the activities A1 and A2. After tapping/clicking b1 I quickly tap b2 aswell. The result will be that both A1 and A2 are launched. Is there any obvious way to not have this behaviour, i.e. to "lock" A0? I am thinking of overriding dispatchTouchEvent to consume everything after the call to startActivityForResult, but it seems a bit much...
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View 2 Replies View RelatedI am working on an app and I use startActivityForResult but currently if you press the back button on the new activity it will crash my app. In my new activity I have
CODE:..........
But that didn't fix the problem.
I got a question about Activity.finish(). In my Android code, there are 4 activities(A,B,C,D). The starting activity A calls startActivityForResult(intent, reqCode) to start activity B. B starts C, and then finish(), not waiting for result. C does exactly the same as B, starts D and then finish(). D will return some result, by setResult(resultCode).
When my code runs and activity D returns some result, A will catch a RESULT_CANCELED on onActivityResult(), even if RESULT_OK is returned in D. I guess the RESULT_CANCELED is from activity B, which has been terminated before D returns a result, rather than from D.
But, my question is, why activity A catch RESULT_CANCELED after D returns some result, rather than immediately after B is terminated? And, what should I do to make A catch results from D? Do I have to keep B and C alive, to pass results from D to A?
From one activity, I want to pass a lot of data (about 1MB of Strings).I tried sticking it in Intent.putExtra(ArrayList<String>), but if I put in too much data, I get "FAILED BINDER TRANSACTION".What's the easiest way? I don't want to publish a service, or use the file system. I really want a pipe that can write data from one end and read it from the other end. I can handle the case where the starter Activity dies while the "startee" activity is trying to read from the pipe.
View 6 Replies View RelatedI have 3 classes in my example:
Class A, the main activity. Class A calls a startActivityForResult:
Intent intent = new Intent(this, ClassB.class);
startActivityForResult(intent, "STRING");
Class B, this class is a TabActivity:
Intent intent = new Intent(this, ClassC.class);
tabHost.addTab...
Class C, this class is a regular Activity:
Intent intent = this.getIntent();
intent.putExtra("SOMETHING", "EXTRAS");
this.setResult(RESULT_OK, intent);
finish();
onActivityResult is called in Class A, but the resultCode is RESULT_CANCELED instead of RESULT_OK and the returned intent is null. How do I return something from the Activity inside a TabHost?
I realize that the problem is that my Class C is actually running inside of Class B, and Class B is what is returning the RESULT_CANCELED back to Class A. I just don't know a work around yet.
Is there an exception in the lifetime rules for a parent activity that's in the background after invoking startActivityForResult()? From my understanding, in low memory scenarios, the background activities are killed before the foreground. Does this rule still apply even if the background activity started the foreground one for the purpose of obtaining some result?
In this case, I think it would make sense for the foreground child activity to get killed first or to equalize the lifetime of the parent and child.
The application I'm currently working on consists of several dialogs and there is an issue with one dialog I still haven't found the cause.
Running the debugger the execution reaches the following two lines:
CODE:.................
And then the onCreate() method in DlgLogin class executes as well
But the login dialog doesn't appear. If I leave the device idle for such long period of time that the screen turns off and then press any button on the device to turn it on the login dialog appears.
The dialog of course should appear immediately but so far haven't found the cause of the problem.
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View 3 Replies View Relatedsay for example I have this code in my activity:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
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Thread cThread = new Thread(new Runner());
cThread.start();
}
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CODE:...........
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CODE:...................................
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