StartService With Objectdata As Parameter
Oct 6, 2011
I wanna start a Service and need some Objects in my Service to work with them.
I would like to have an custom constructor like this:
Code:
public MyService(Context context, Button button, Cursor cursor)
But the common way to start a Service is like that:
Code:
intent.setClass(this, MyService.class);
startService(intent);
In an Intent I can only put Data like Strings.
How I can start a Service with some Objects as parameters?
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Nov 19, 2010
I'm testing some functions with Android, JNI and NDK. I have the following JAVA class:
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.TextView;
public class JNITest extends Activity {
private int contador;
/** Called when the activity is first created. */...........................
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Jul 19, 2010
I have a Service which is typically bound to, but sometimes needs to go into a mode where it should be active even if nobody is bound to it. Therefore, startService() must be called so it can be explicitly started & stopped. In my case, when exactly this should happen is best determined by the service itself, depending on its state (after being bound to). Can the Service (at the appropriate time) just call startService() from it's own Context?
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Apr 11, 2013
I draw a space ship :
Code:
private void spawnSpaceship() {
Rectangle spaceship = new Rectangle();
spaceship.x = MathUtils.random(0, screenWidth-32);
spaceship.y = screenHeight;
spaceship.width = 32;
spaceship.height = 32;
// spaceship.energy = 100; <= this line won't compile
spaceships.add(spaceship);
lastDropTime = TimeUtils.nanoTime();
}
As you can see, spaceship has parameters : x position, y position, width, and height.
I'm a noob and I would like to add an "energy" parameter but this line won't compile :
Code:
spaceship.energy = 100; <= ERROR
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Feb 18, 2014
All the rooting guides for android use 'adb sideload'. I have the latest sdk, but there is no 'sideload' parameter.
It's not listed when I write 'adb --help', and it's not a hidden parameter either.
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Nov 4, 2010
How to pass parameter value to web service in Android?
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Dec 7, 2009
How can i specify command-line parameter when I launch an android application? 1- With Eclipse 2- Directly from the phone
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Nov 29, 2009
I need to call a web service using ksoap2, I have been doing this successfully up till the point where I need to pass a more complex type to the web service.Does anybody have an example of passing a complex type to a webservice, preferably, only using SoapObject (the object in question is only Strings and dateTimes.
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Jul 6, 2010
I want to send data to server from client(Android)
Below is my format.
CODE:......................
I'm trying series of trial but no use, how this can be done?
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Apr 12, 2009
My contacts contain a lot of duplicated records, I want to use the traditional SQL clause "UNIQUE" to get the unique records, is it doable thru the query() method call? Thanks. I tried with the selectionArgs argument but failed.
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Aug 11, 2010
All the classes in Android that can be built using XML have constructors of the form:
Context context, AttributeSet attrs, int defStyle
What is the defstyle parameter?
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Nov 18, 2013
I did was use the search function and after 10 pages I could not see what I was looking for. In java, we use method parameters for a number of reasons but I've never used parameters in my methods unless I needed them..When defining a method in android for a button that I want to click, I had my method defined in XML under the Button element
[HIGH]androidnClick="showText"[/HIGH]
then, in my ProjectName.java file I defined the method
[HIGH]public void showText(View view){
}[/HIGH]
I was told that the View in the parameter is the view that was clicked.Button is a subclass of View as is TextView and since that is the case,is this the rule for just the onClick method? Also, why can I not pass the Button as a parameter? Button is the actual "View" being clicked, so why not Button?
Furthermore, are there other methods similar to this and if so, do they all follow the rule just like the View parameter, where let's say if I had a class called "A" and it had a subclass "B" and that class had a subclass "C", and if I wanted to use the onClick method, I can only pass the Highest Class as the parameter?
To simplify that, are there ever cases where I would pass anything else OTHER THAN "View" as the parameter to these methods?
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Jul 20, 2010
while I'm testing my app with Monkey test tool, I ran into the following exception: "IllegalArgumentException: parameter must be a descendant of this view"
I don't really understand why this exception happens, so I did some research about this and found the following: http://groups.google.com/group/android-developers/browse_thread/threa...
According to the above post, the issue once was resolved in Donut release, but some ppl say it still happens. Is there anyone who knows anything about this issue? As far as I understood, this issue shouldn't occur unless you intendedly call the method ViewGroup.offsetDescendantRectToMyCoords to get an exception.
My app is using Tab, which means it has a lot of views in it. (including view changes too.) I don't really call setContentView repeatedly in my app though. Someone in the above post said that calling setContentView several times can cause this issue, so I just wanted to make sure that my app is not the case.
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Jan 21, 2010
I'm using eclipse to develop over android, i'm trying to connect to a .net webservice...when i'm calling a webmethod with no parameters it works fine... but when i come to pass a parameter to the webmethod things turn upside down... the parameter is passed as null (while debugging the webservice i discovered that) and i get a null from the webmethod in the client side code... i've been searching for a solution for a day now and all that i can interpreter is that people keep talking about encoding styles and such stuff.... i've tried it all but in vain. i'm using ksoap2 version 2.3 with the following code:
CODE:......................
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Dec 16, 2009
I am trying to send a sms throughout an application. I want the user to be redirected to the default sms interface, but I want to give in parameter the phone number of the receiver of the sms.
Here is my code:
CODE:.........
The problem here is that it doesn't take the value of the phone number, it is still empty.
I also added this: m_intent.putExtra("sms_body", "Hello World"); and it is working.
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Aug 13, 2010
I want to get image resource id by its name
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Aug 27, 2010
Which parameter passing method is used in Android? Pass by reference or Pass by Value? Please provide an Android Specific example for the same.
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Oct 15, 2010
I am passing parameter to new activity using tab host in android but it showing illegal exception code...
can anybody tell how to pass parameter using intent with tabhost in android
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Jun 9, 2010
Why I can't implement OnKeyListener with parameter View such as on example where parameters are (View v, int keyCode, KeyEvent event) I'm forced to use parameters (DialogInterface dialog, int keyCode, KeyEvent event) but not the View as I want.
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Jul 22, 2010
I try to save a unique image to each object but I get this error, how should the constructor look for it to work that way? The constructor Beer(String, int, int) is undefined
m_beer = new ArrayList<Beer>();
final Beer b1 = new Beer("Tuborg", 7, R.drawable.tuborg);
final Beer b2 = new Beer("Carlsberg", 7, R.drawable.carlsberg);
final Beer b3 = new Beer("Urquel", 9, R.drawable.urquel);
public class Beer { //Members private String name;
private int color; //1 = Very dark 10 = Very light private R.drawable icon;
//Methods public Beer(String name, int color, R.drawable icon) {
this.name = name; this.color = color; this.icon = icon;
} public String getName() { return name;
} public void setName(String name) { this.name = name;
} public int getColor() { return this.color;
} public void setColor(int color) { this.color = color;
} public R.drawable getIcon() { return icon;
} }
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Mar 9, 2009
I want to pass a class reference to an activity, and then the activity will construct the view according to the content of the class.
How could I implement this function?
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May 14, 2010
How to pass a parameter to an application that I call from my Application?
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Apr 30, 2010
I noticed a lot of Android functions have a parameter that you can pass in that's a bitmask, for different options, like on PendingIntent, you can pass in things like you can call getActivity() with PendingIntent.FLAG_CANCEL_CURRENT|PendingIntent.FLAG_NO_CREATE.
I'm wondering how I can create a function that has a parameter like this?
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Apr 19, 2010
I'm building an android application, which has a list view, and in the list view, a click listener, containing an onItemClick method. So I have something like this:
public class myList extends ListActivity {
@Override
public void onCreate(Bundle savedInstanceState) {
getListView().setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
/* Do something*/
}
}
}
Normally, this works fine. However, many times I find myself needing too preform an application using the outer class as a context. thusfar, I've used: parent.getContext(); to do this, but I would like to know, is that a bad idea? I can't really call: because it's not really a subclass, just an embedded one. So is there any better way, or is that considered cosure? Also, if it is the right way, what should I do if the embedded method doesn't have a parameter to get the outside class?
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Jun 25, 2009
From the JavaDoc, the EXTRA_STREAM parameter when launching an intent needs to be an URI. How can I pass a Bitmap object which I get from launching a "android.provider.MediaStore.ACTION_IMAGE_CAPTURE" intent? code...
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Jun 27, 2010
I am wondering if the Location.distanceTo method will use the accuracy field of the Location object when approximates the location, or do I have to add by my own the errors to these fields. The usage is to compare the distance against a proximity value.
Float dist=currentLocation.distanceTo(loc2); Would this be if (dist<100meters) or
if (dist+currentLocation.getAccuracy()+loc2.getAccuracy()<100meters)
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Jul 2, 2010
The preference type of UI is used in many Google built-in applications for example Bluetooth , Wifi etc. And the getView of the preference is used to set the image or text to make it visible in the UI screen.
the getView for the pref type UI is defined as below in framework code : ->
CODE:..............................
Where the convertView is not getting recycled and every time whenever the user is scrolling the list up and down, convertVIew comes out to be null.Therefore by logic inflation of the UI also happens all the time in onCreateView().This is a kind of shortcoming in terms of memory utilization , hence in a discussion (MAKE YOUR UI FAST AND EFFICIENT) where Romain Guy has mentioned about the tricks to increase the app performance doesn't hold good for preference type of UI.
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Nov 14, 2010
I have made customAdapter (which extends BaseAdapter). I want to reuse the old views..
So I am checking:
CODE:........................
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Jun 9, 2010
I'm new in Android development and I have the next question/problem. I'm playing around with the Media Recorder class to record just audio from the microphone. I'm following the steps indicated in the official site:
http://developer.android.com/reference/android/media/MediaRecorder.html
So I have a method that initializes and configure the MediaRecorder object in order to start recording. Here you have the code:
this.mr = new MediaRecorder();
this.mr.setAudioSource(MediaRecorder.AudioSource.MIC);
this.mr.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
this.mr.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
this.mr.setOutputFile(this.path + this.fileName);
try { this.mr.prepare();
} catch (IllegalStateException e) { Log.d("Syso", e.toString());
e.printStackTrace();
} catch (IOException e) { Log.d("Syso", e.toString());
e.printStackTrace();
}
When I execute this code in the simulator, thanks to logcat, I can see that the method setAudioSource(MediaRecorder.AudioSource.MIC) gives the next error (with the tag audio_ipunt) when it is called:
ERROR/audio_input(34): unsupported parameter: x-pvmf/media-input-node/cap-config-interface;valtype=key_specific_value
ERROR/audio_input(34): VerifyAndSetParameter failed
And then when the method prepare() is called, I get the another error again:
ERROR/PVOMXEncNode(34): PVMFOMXEncNode-Audio_AMRNB::DoPrepare(): Got Component OMX.PV.amrencnb handle
If I start to record by calling the method start(). I get lots of messages saying:
AudioFlinger(34):RecordThread: buffer overflow
Then after stop and release, I can see that a file has been created, but it doesn't seem that it been well recorded. Anyway, if I try this in a real device I can record with no problems, but I CAN'T play what I just recorded. I guess that the key is in these errors that I've mentioned before.
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Jul 2, 2009
I am using Android SDK 1.5. I am developing an activity with multiple content views. It will call setContentView() with different viewgroup instance for different functionality. It contains a text input dialog popped up by an option menu item. I didn't specify anything for IME in mainfest.xml & EditText attributes. I found at first, the soft keyboard for the text input dialog will overlap on the activity content view. But after several content view switch (by calling setContentView() with different ViewGroup instance), the soft keyboard will resize the activity content view. Why this inconsistent behavior happens?
...........................
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