I want to port an small open source AES encryption class to Android, and it would cut my work down a lot if the API of Android is as close as possible to the Java 6 API.
How much is implemented (or referenceable), as I have tried searching about this on google, and i have not yet come up with anything useful?
View 3 Replies
create to get ads on my free application, ok first off I have been following this book
Beginning Android games 2011
Beginning Android Games
Now this book implements a very nice and simple game framework which I use (a simpler version can be found here.The Android Game Framework: Part I - Kilobolt
Now this framework doesn't use any type of XML file what so ever, it uses a framebuffer to draw things onto the screen. now when the application is first started, this is the first method called which is in the AndroidGame.java
[HIGH]
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
[code]...
What is this widget called (the one with the three buttons).
View 4 Replies View RelatedI've been looking around in the framework source and I can get my head around some things. For instance, in the ScrollView, the animated scrolling is done by using computeScroll(). To make the screen redraw (and thus call computeScroll() again), postInvalidate() is used. Why is that one used, instead of a regular invalidate-call?
Secondly, I wonder some things about the Animation framework. I know how a ViewGroup is responsible for animating the children (modifying the Canvas and so on), but what drives the animation, i.e. what makes the screen redraw over and over again? In the case of the ScrollView, it's the call to postInvalidate() made from computeScroll(), but what is it in the case of an Animation?
I notice in the source code they are not used in critical loops, e.g. in View.java :
http://android.git.kernel.org/?p=platform/frameworks/base.git;a=blob;...
I can see this kind of code which would be much easier implemented as an ArrayList :
1867 private void addInArray(View child, int index) { 1868 View[] children = mChildren;
1869 final int count = mChildrenCount;
1870 final int size = children.length;
1871 if (index == count) { 1872 if (size == count) { 1873 mChildren = new View[size + ARRAY_CAPACITY_INCREMENT];
1874 System.arraycopy(children, 0, mChildren, 0, size);
1875 children = mChildren;
1876 } 1877 children[mChildrenCount++] = child;
1878 } else if (index < count) { 1879 if (size == count) { 1880 mChildren = new View[size + ARRAY_CAPACITY_INCREMENT];
1881 System.arraycopy(children, 0, mChildren, 0, index);
1882 System.arraycopy(children, index, mChildren, index + 1, count - index);
1883 children = mChildren; 1884 } else { 1885 System.arraycopy(children, index, children, index + 1, count - index);
1886 } 1887 children[index] = child;
1888 mChildrenCount++;
1889 } else { 1890 throw new IndexOutOfBoundsException("index=" + index + " count=" + count);
1891 } 1892 };
I mean in runtime. Sometimes I get "called unimplemented OpenGL ES API" error but it can not be catched. Is there a way to figure out what function is implemented or not, in runtime?
View 2 Replies View RelatedCan somebody point me to the right direction how the navigation overlays for My Tracks are implemented? I'm talking about the "buttons" for navigating appearing on the left and right side if you tap on the screen. Any pointers?
View 3 Replies View RelatedHow to include .jar files in android for a particular application in which KSOAP is implemented?
View 2 Replies View RelatedIs it possible to build a spreadsheet-like grid? I would like to select single cells, or one row at a time,like a database viewer.
Or would it need to be implemented at the framework level?
I'm thinking of a UI equivalent of something like this AJAX control, which may be opened in the WebView: http://www.hisdigital.com/misc/flexigrid/.
I have seen several 2DIN car headunits that has Android 2.3 supports FM Radio and Handsfree and can be controlled through the UI itself. how is it implemented?
eg: In eBay, search for item No : 130862564199
I want to add one more endpoint audio device in android and am trying to modify the setRouting() functions to support the selection of the new added audio device. As far I traced, the doRouting() in class AudioHardwareOss should perform the audio endpoint device selection. However, donRouting() just returns NO_ERROR without any other functionalities. So, my question is where and how endpoint audio device selection is achieved.
View 2 Replies View RelatedI have an application that has a tabActivity and 3 tabs. all off the tabs use a location listener and work with locations. i implement onPause and onResume for every tab to remove and start listening for location accordingly. is this the right way to go? i had another idea to work with and that was implementing a location listener to the tabActivity and doing broadcasts to the child tabs with the location, but it seemed more complicated.
The problem with my current solution is that whenever i switch tab i lose the location i got in the previous and i cant use getlastknown location because i dont want the last location on start of the application.(does this make sense?) what can i do to solve this problem. a thing that will work better will be to have one variable that will hold the last location from the onLocationChanged and i can observe its changes and call methods onChange.
How can reduce the power usage in my application.
View 1 Replies View RelatedI am implementing one application gust i am adding validations in login page implemented then two fields required username and password button login i am applying validations then focus are not getting then set focus in unfilled edittext
CODE:.............
Not filling username then filling password then username entered some toast displayed fine focus are entered in username edittext this is the problem how can implemented focus in unfilled username.
i'm a bit stuck with remote services in android. thing is i implemented a remote service in package "a.b.c" and i want other applications to be able to access this service. i got rid of the whole crappy aidl-stuff and designed the "interface" of the service to work via broadcasted intents. works fine so far...
problem is: how do i get a different application (different package, different project, maybe even a different developer, ...) to start/stop the service?
CODE:..........
This will crash my app immediately on startup. what did i do wrong? how will i get this to work?
once it's running, commands and data will be passed via broadcasts. so that should be no real problem...
Has anyone implemented an Android Shake Detector that works well on most phones?I thought it would be fairly simple to implement but I keep getting false results. Basically, what I'm doing is setting up a sensor Listener, checking to make sure it is a SensorManager.SENSOR_ACCELEROMETER event, then only checking the event if the last event I received was more than 50 milliseconds ago (to try to reduce the amount of checking I do).Then I look for 3 "Shakes" within 4 seconds.A "Shake" to me being a speed reading of over 1000 followed by a speed reading of less than 400 within 1 second. If I don't get three "Shakes" within 4 seconds then the counter is reset to zero.At times it seems to work well but I continue to have instances where I just pick up the phone, and it triggers all three shakes, which makes very little sense to me because at other times, I can physically shake the phone quite hard, and not trigger all three shakes.As I said.. it works about 90% of the time correctly, but a 10% error rate is making the feature I want to implement useless.
View 5 Replies View RelatedAre we allowed to return 30 days from the day we ordered the phone, or 30 days from when we received the phone? (april 19th and april 28th for me). If the droid 2 is coming out with similar specs and a keyboard i think i want that.
View 10 Replies View Relatedi have two files
App.java
Gallery.java
App. java contains frontend buttons and functionalities Gallery.java lists the imagesin the sd card. i want to call Gallery.java in click event in app.java
App.java
package gallery.display;
import android.app.Activity;
import android.os.Bundle;
import android.view.View.OnClickListener;
import android.view.View;...........
I'm trying to call a java method from javascript using addJavascriptInterface(); but seems does not work, it always display "failure"; java code...
View 2 Replies View RelatedJava packages like Java.io, Java.Lang etc used in android, are they different from Java packages in windows ? means specially made for android ?
View 2 Replies View RelatedI'm having some problems porting a Java application to work in Android platform. I detected an incompatibility problem between java sun and Adroid sdk in java.lang.Class. I oberved that: public Field[] getFields() Returns an array containing Field objects describing all fields which are defined. That's array is sorted as attributes are declared in the main Class in sun jdk. For example, next Class is defined as: public class Example { public boolean stop; public int atr1; public String name; ....
}
I do an import of the full package name / java file, and if I do a <classname>.<method>, SOMETIMES I can get it to access - other times I get a lot of can't use a static in a non static bunch of talk. I'll admit I'm new to Java, so what do I need to do? Call a class instance first, then call my methods? I'm rather confused by this, as I want to put all of my 'functions' into a FunctionsList.java file, and all of my main Activity (UI) into a MyActivity.java file.
For example:
<MyActivity.java>
import com.example.FunctionsList;
private class MyActivity extends Activity {
FunctionsList.function();
}
9/10 times I get that static/non-static error. If I put all of my functions into MyActivity.java, I have zero problems!
i hav two classes...both classes are extends activity.. i need call other class method on main class on android development..its urgent..please.. i done something like subclass sub = new subclass()...its not work..
package org.me.intent_testing;
import android.app.Activity;
import android.os.Bundle;
import android.widget.;
import android.view.;
import android.content.Intent;...........
i hav two classes...both classes are extends activity.. i need call other class method on main class on android development..its urgent..please.. i done something like subclass sub = new subclass()...its not work..
In 1st activity class
package org.me.intent_testing;
import android.app.Activity; import android.os.Bundle; import android.widget.; import android.view.; import android.content.Intent;
/** * * @author pavankumar */
public class FirstActivity extends Activity {................
I was going through the code for Activity.java and ApplicationContext.
Both these classes define many functions of Context Interface. Take for example startActivity.java
Activity Class has its own implementation of startActivity ApplicationContext class also has an implemenetaion of startActivity.
Now there are 2 observations...
CODE:..........
Questions: 1. Who uses ApplicationContext class? 2. Does Activity class ever deal with ApplicationContext class (as given in the javadoc comments of ApplicationContext.java).
I am trying to install the ADT Plugin. It is not working.
Tried:
This is after Hello->Install New Software
Name: ADT Plugin
Location: https:[code]....
How do I install ADT Plugin?I am using Java 6 instead of Java 7 per recommendation of posts elsewhere. It didn't work.
Want to know if there is an app to run Java on my HTC EVO.
View 1 Replies View RelatedI know there are plenty of tutorials about integrating C++ into Java, but whats about the other way around, a Bridge from Java to C++?
The reason i'm asking this is Android.
Every C++ developer who wanted to write applications for the android noticed at some point that there is no serious (mature) C++ api for android (infact, android is lacking an implementation of the STL).
The only API that is mature enough to write android applications in, is Java. So instead of writing an api from scratch, wouldn't it be possible to use the Java Classes from C++?
I know that this sounds merely like an unrealistic dream, but that way most C++ developers weren't forced to learn a new Language.
I've seen this question asked many times but none of the answers really made sense in what I'm doing... I have an android game (see source at Google source control: http://code.google.com/p/bestcardgameever-android/source/browse/#svn/...) It's a card game, and I've used a method that redraws each hand every round - that might be wasteful but I couldn't think of a better way to do it. Code...
View 3 Replies View RelatedI can debug the Android Java code using eclipse and using the Remote Java Application debug configuration. This does not step into C/C++ code however as expected. I understand I have to attach the gdbserver to do this. Can someone provide a step by step tutorial on how to debug the native code of Android?Is there a eclipse plugin that makes this easier?
View 3 Replies View Related