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?
View 2 Replies
I have placed an icon on the status bar. I would like to run a method of another class whenever the user selects that icon. I've seen similar functionality used in volume icons that sit on the status bar that allow a user to raise or lower the volume when the icon is clicked. However, these icons are on the right side of the status bar, and from what I've seen, I'm not allowed to put an icon there. I don't know if that kind of functionality is available to left side icons. So basically, I'm looking for how to run a function when a status bar icon is clicked. I don't want to open an activity, I just want to run a function.
View 1 Replies View RelatedWhich parameter passing method is used in Android? Pass by reference or Pass by Value? Please provide an Android Specific example for the same.
View 2 Replies View RelatedI 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?
I'm implementing the onBackPressed() method in my activity. It's crucial to my app that I have this functionality. But, the control never enters this function. It enters onPause() instead, when I press the back button. But the problem is I can't have the same logic in onPause() because when I call another activity, the current activity calls onPause() and I don't want it to execute what should be in onBackPressed().
public void onBackPresed(){
Log.d(TAG,"inside onBackPressed()");
if(STATE == PREVIEW){
} }
I have put HTML document into a string variable and load it by using webView.loadDataWithBaseURL(null, htmlString, "text/html", "utf-8", null).
After that, I tried two ways and want to execute javascript function "exec()" by using
1. webView.loadDataWithBaseURL(null, "javascript:exec()", "text/ html", "utf-8", null) -> This will overlap the content of previous "htmlString" and shows "javascript:exec()" on the screen.
2. webView.loadUrl("javascript:exec()") -> There will be "Can't find variable: exec line: ..." in Logcat
I have tried to output "htmlString" to a file located in sdcard, and tried to use webView.loadUrl("file:///sdcard/xxx/a.xhtml") + webView.loadUrl("javascript:exec()").
And...it fails again! how to execute javascript function after loading html content by "loadDataWithBaseURL"?
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. */...........................
We are building an Android App that will use user's current location (lat, long) and show top 50 venues around the current location, sorted by distance.We have these venues stored in an SQLite DB. We plan to ship with the sqlite DB with the app.In order to fetch only the relevant top 50 closest venues, we want to define a db function DIST (to calculate distance between two points) and use it in our query.How can I define a custom SQLite function for Android Apps? What will be the Java API call to do this?We have successfully implemented this approach in our iPhone App - using Objective C.
View 1 Replies View RelatedI create a WebView object in the OnCreate function. Now I need to be able to pass this same object to other functions in the code, such as the onOptionsItemSelected function. I currently have it where I just create a new WebView object in each function where I need it, but this slows down the code since it has to recreate it and such.
View 1 Replies View RelatedI want to call a method every X minutes, if my method got a result it ´should inform the user by vibrating or showing a alertbox. if the method doesn't get a result it should wait for X minutes and restart. What is important, this should also work when the phone turns to sleep. Which means I want to wake the phone from sleep to run my method. Actualy I can activate my method via a Button, and it is working like I want it to be except the background loop thing.
I already searching for a solution here in the group or also on google but I think I don't got the right search terms to find a solution for my problme. I already read about the AlarmManager and broadcast receiver but I'm not sure if this is right for my problem.
is it possible to start a context menu on the onCreate method? I know its probably bad design ethics but I have my resons! I've tried the: register For Context Menu (this.getCurrentFocus()); But its not working.. So does anyone have any better ideas?
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
LinearLayout layout = new LinearLayout(this);
layout.setLayoutParams(new
LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
//Button button = new Button(this);
//button.setLayoutParams(new
//LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
//button.setText("my button");
TextView text = new TextView(this);
text.setLayoutParams(new
LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
layout.addView(text);
setContentView(layout);
registerForContextMenu(text);
openContextMenu(layout);
I want to create a method to open a popup when i click on it and the title and the text would be automatic, something like this :
CODE:...........
But test is a String and set Message doesn't accept Strings, and it would come from a resource XML, like Strings.xml. So i don't know ho to do this. And the 'getTitle()' i don't think it could work. My method to take the title is this one.
CODE:...........................
my app is working perfectly and playing its music in the 1.5 and 1.6 emulators, my ADP1, and for everyone in the Android Market (at least there were no complaints). The problem is that when the app is run on the ARCHOS 5 tabled, the MediaPlayer.create(Context context, int resid) method returns null. I guess there might be a problem with the ARCHOS' Android implementation, but did anyone experience the same problem? What might be a possible reason for the create method to return false? The docs don't say anything. I'm also using SoundPool in parallel with MediaPlayer if that's relevant.
View 2 Replies View RelatedI am completely new to java & android ,so I try to found useful sample about android & databases . So I found this blog with project I run project and he works fine, but I was trying to create new project and to copy & past code in it and this is not working :( I had problem on this line: " this.setListAdapter(new ArrayAdapter(this, android.R.layout.simple_list_item_1,results)); Error: "The method setListAdapter(ArrayAdapter) is undefined for the type create" It's look like method in C# but I can found it in original project.
View 1 Replies View RelatedSo how can I create a custom method.I have several image buttons that I need to change the characteristics of such as an image when it is pushed and when it is not pushed. So when I push one button it changes to a pushed image for that button and ALL other buttons revert to an unpushed image. Currently I have to have this code in every button click method I would LOVE to create one method that I can call from each button click method that way if I have to change anything it is in one place.
I would love to when a button is tapped
call the custom method to revert all buttons to unpushed
then change the button being tapped to pushed
A very common process but I can't figure out how to write the custom method and then call it,,calling it should be simple something like custommethod.
I can build a daemon with my algorithm code and main function.I put all files in one folder under /development and make This executable file works successfully
Now I want to separate my algorithm code and main function code. I hope to build a binary library with my algorithm code and main function will link this binary library to use.
Where to put my algorithm code to create binary library and how to link this binary library in main function code?
I am thinking to create a static method to return a reference to the application instance. I am not sure if it is safe to assume there is only one instance of the Application in one application. Apparently, the Application class in Android SDK doesn't provide such method to return the instance reference. So I suspect there must be a reason?
View 1 Replies View RelatedI am testing my application on an LG Eve phone. I have an application that tries to download something from the web, and when it throws an exception, it is supposed to launch an alertdialog saying that there was an error. When the phone has no wifi signal, the program crashes at builder.create() (see code below). However, when there is wifi signal, and the exception is thrown by something else (for instance, a typo in the url), the dialog launches the way it's supposed to. Any clue as to why this could be?
Code for onCreateDialog:
@Override
protected Dialog onCreateDialog(int id){
Dialog d = null;
switch (id){...............
How can I implement a run() method of thread if I create a Thread Global?
I mean If I create a Thread Globally then can I implement its run() method {" public void run()"} anywhere in my Application?
In the run() method I have to write the code to perform some action.
IF I can do it then please can anyone show me briefly how to do it particularly.
I'm trying to override the onBackPressed() method of the ActivityGroup class:
public class MyClass extends ActivityGroup {
@Override
public void onBackPressed() {
// do something
return;
}
but I'm getting the error The method onBackPressed() of type MyClass must override a superclass method. I'm relatively new to Java, I've seen here that people do it and it works for them Why I'm getting this error? I'm writing an app for android 1.5, could the problem be here?
In Eclipse, when I mouse hover over a built-in method, it displays a method definition including stuff like what the method does, input objects, return objects etc. If I have a yellow line (warning) under the method I'm trying to use, I can't get the mouse-over to show the definition. If I try hitting F3, I get a "The Jar of this class file belongs to container "Android 1.6" How do I show the definition of the method I am using when there is a warning?
View 1 Replies View RelatedI am trying to use annotation - method.getAnnotation( ) or method.isAnnotationPresent( ) and it is not working. I am using eclipse emulator for 2.1 OS version with JDK 1.6. Following is information about what I did..................
View 4 Replies View RelatedHow to pass parameter value to web service in Android?
View 2 Replies View RelatedHow can i specify command-line parameter when I launch an android application? 1- With Eclipse 2- Directly from the phone
View 2 Replies View RelatedI 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.
View 5 Replies View RelatedI 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?
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.
View 3 Replies View RelatedAll 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?
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.
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:......................