What does this line from the following code sample mean? "synchronized (_surfaceHolder) {_panel.onDraw(c);}"
I can guess what it does, but what is it called and how does it works? Is it a nameless synchronized function? Code...
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I'm coming from .NET world, and unfortunately looking Java source with .NET's eyes. Following code is from Android Apps (though not Android specific at all):
private class Worker implements Runnable {
private final Object mLock = new Object();
private Looper mLooper;
Worker(String name) {
Thread t = new Thread(null, this, name);
t.start();
synchronized (mLock) {
while (mLooper == null) {....................
I am facing a problem with a stopping thread which is in a synchronized block. I am using TCP socket. The problem is that I am waiting on a DataInputStream object and I want to create a new socket again but it doesn't allow me to do because of the synchronized block.
I have tried with Thread.interrupted(). I cannot avoid the synchronized block. Is there any other way to do the same?
dis = new DataInputStream(ReadWriteData.kkSocket.getInputStream());
int i = -1;
String aval = ""; //new String();
char c = (char)dis.read();
It is getting blocked on dis.read().
What I should do for escaping the dis.read when I want to create a new socket?
how to develop an offline sync app using the OpenMobster Sync Plugin for the PhoneGap framework. You can develop your App using HTML5 and Javascript instead of the native programming language.
Features:
-two way synchronization between the local sqlite database and the corporate backend in the Cloud
-Offline mode operation. All data changes are tracked and auto synchronized with the Cloud once the connection returns
-Use of Push notifications to push data changes from the Cloud to the device
-Support for replicating changes to multiple devices like iCloud does
-A Java based Channel Framework for integrating your backend with the Cloud
im using 2 threads, one is writing floats and one is reading this floats permanently. my question is, what could happen worse when i dont synchronize them? it would be no problem if some of the values would not be correct because they switch just a little every write operation. im running the application this way at the moment and dont have any problems so i want to know what could happen worse?
a read/write conflict would cause a number like 12345 which is written to 54321 and red at the same time appear for example as 54345 ? or could happen something worse?
(i dont want to use synchronization to keep the code as fast as possible)
Pretty pissed off by the youtube app in X10.
Sound is always late by about 0.3s.
Its a real turn off to see the mouth move first, then hear the sound.
Is there any other apps which I can watch youtube in high quality, without facing this sound problem?
Or is there another better apps out there?
I use a boolean variable "flag" both in main and child thread. This "flag" is used to notify child thread to exit. I only use simple operation, e.g., "flag=false", "if (flag) {}". As I know, in java, "get and set a boolean variable" is atomic. So "synchronized" is not needed for variable "flag", declaring "flag" as "volatile" is enough.
Is this still true in Android?
I'm looking into writing simple graphics code in Android and I've noticed some synchronized() blocks. What is the reasoning behind this and how do I know when I should be "synchronizing" my code?
View 1 Replies View RelatedI'm trying to use the new reboot function defined here: http://developer.android.com/reference/android/os/PowerManager.html#r. but I'm running into permissions issues even though I have the REBOOT permission in my manifest: <uses-permission android:name="android.permission.REBOOT" /> The error I see in logcat is: E/Android Runtime( 5272): java.lang.SecurityException: Neither user 10059 nor current process has android.permission.REBOOT. The REBOOT permission doesn't show up in the list of permissions for my app even though other permissions do. Is this a functionality that is still protected even though it's now a part of the public API? All of my testing so far is on a Nexus One with Android 2.2
View 3 Replies View RelatedI have met a problem with the RIL. I am using reference ril to implement SIM PIN unlock function. When i use a pin blocked SIM card, the Android Java code through exceptions and the "rild" is repeatedly disconnected and reconnected. The at command response is correct and i suppose it is right for the reference ril to report "GENERIC FAILURE" when SIM Pin is blocked. I can not figure out the reason for the error. Can somebody help me.
View 4 Replies View Relatedthe end / power key (button) doesnt work anymore on my mt3g, its like always pressed. Is there any way I change the function of the search key to end / lock ?
View 1 Replies View RelatedI 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?
How the substring works in android? I will be greatful if you can give a sample application for the same.
View 2 Replies View RelatedI'm having a bit of a problem with the led function on the HTC Desire Z with Handcent. Coming from a HTC Hero, whenever I get a new message my LED and trackball would flash continually until I opened the text message. But now on the Z the trackpad and LED will flash for a while then stop. Is there a way of having it like the Hero?
View 3 Replies View Relatedsay for example I have this code in my activity:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Thread cThread = new Thread(new Runner());
cThread.start();
}
private NotifyMe(){
//do something here
}
and this is my Runner class:
public class TCPClient implements Runnable {
public void run(){
//call NotifyMe() [THIS IS MY QUESTION]
}
}
I have a thread on my activity that runs the Runner Class. Once the thread start, I would like to call the NotifyMe() function that is located at the activity. Is this possible?
In an Android app, I am looking for the functionality of the .NET string function [Trim('aaa')] which will trim off the text "aaa" off a string. I don't think this is natively available in Java and I haven't seen that functionality in Android Java textutil library. Is there an easy way to have a Java app trim a set of characters from the string?
View 2 Replies View RelatedI previously had a blackberry curve and loved the sleep function where phone would shutoff every night ay 10 and turn itself on at 6:00, is there an app/function for the droid where I can do the same?
View 1 Replies View RelatedHow can use intents in the following: I want to use the RADAR function in the package: com.google.android.radar.SHOW_RADAR I got that I need to input the following: Code...
View 8 Replies View RelatedIn Java, is it possible to associate some object (i.e. a String) with a function to be called ? I have two similar menus and both have a onClickListener with some code like this: Code...
View 4 Replies View RelatedI've created a custom gallery; however, the "Set wallpaper" button will not set the wallpaper. Here's the wallpaper.java I have. I'm just lost on how to implement OnClickListener and then set my button to use an onclicklistener like so:
CODE:................
i want to get the 3D coordinate from the android screen x,y coordinate i choose to use the gluUnProject but the gluUnProject function always returns NaN why?
View 3 Replies View RelatedDo you guys know of an application/function that will allow you to take a screenshot of your G1 screen?
View 2 Replies View RelatedI have an URL pointing to content and I need to get highest value contained in one of the columns. Is there any aggregate function that will accomplish that or do I have to do this manually?
View 2 Replies View RelatedI'm in a process of creating a memory game. My problem is that whenever i click for the second time, i can't even see toggled button. To be clear - first click toggles the togglebutton, so i can see the number it holds, the second click on a different togglebutton is suposed to toggle it, show me the number and then proceed to either set a score +1 if numbers are the same, or reverse them back again if they're different.
Below is the code that i use as my onClick function, i've been thinking about putting some kind of sleep or delay function somwhere in the second "if block" - (if(klikniecia ==2)).
CODE:...........
I think, about setting a delay here, so i can see both of the cards, regardles if the're the same or not before reverting them.
CODE:...................................
In android 2D UI, what's the function of opengl?
graphic system draw picture and text by skia->opengl->framebuffer, so in 2D UI what's the function of opengl?
in bootable/recovery/minigui the recoverty mini UI just display some png and text, why does it use opengl ?
I am working on an android application, and I need to use encryption for one aspect of it. I am really indifferent to which algorithm I use (AES, DES, RSA, etc...). I am aware that Java has a crypto package, but I am not at all familiar with. Can someone post an example on how to do an encrypt/decrypt function?
View 2 Replies View RelatedI've got two android apps, one with a public void. How would the other app call this function?
View 1 Replies View RelatedI have a problem. I have a project which has 5 activities. All the activities are connected through intent. I have a exit button to exit the whole project . I have used finish() function but it just close the current activity. It works like back. Please give me the appropriate function replace of finish() by which i can exit my project.
View 2 Replies View RelatedWe 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 RelatedIn my layout xml file I have set the android:onClick attribute for a Button element to a function in my activity. So when I click the button the function is called with a View as its argument. Are there any information in that View argument that has the id of the button being clicked? I'm trying to figure out if I have to have one onClick function for every element or if I can use one function and switch depending on the id of the element being clicked.
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