Android :: What Function Use To Control Memory In Java
Sep 28, 2010in c, c++ , there are many memory-contorl-function like - memset,memcpy,sprintf i want to use those function in java what and how should i use?
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Android :: Android / Java - Call Function In Separate *.java File?
Aug 16, 2010I 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!
Android :: Control Never Enters Function / Method Not Being Executed
Jul 9, 2010I'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){
} }
Android :: .NET Trim Function In Java?
Aug 8, 2010In 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 RelatedAndroid :: Call Java Script Function?
Oct 8, 2010I create a javascript function to generate the graph using RGraph.Now i want to send the data for the graph parameters from android java file.For that i want to access the script function in the android java file.Could anyone tell how to do that in android.
View 1 Replies View RelatedAndroid :: Checksum Java Function At Runtime
Nov 1, 2010A while ago I tried to work out how to checksum a function at runtime. As I remember, I failed due to some missing functionality of the class loader from vanilla java. Has anyone managed to do this ?
View 2 Replies View RelatedAndroid :: Generating Function Arguments In Java
Jun 12, 2010I'm very new to java and am working on my first Android app. I am using the webview demo as a template. I am trying to generate a random integer between 1 and 12 and then call a certain javascript function based on the result. Here's what I have:
int number = 1 + (int)(Math.random() * ((12 - 1) + 1));
number = (int) Math.floor(number);
String nextQuote = "javascript:wave" + number + "()";
mWebView.loadUrl(nextQuote);
So mWebView.loadUrl(nextQuote) will be the same as something like mWebView.loadUrl("javascript:wave1()") I just want to know if what I have here is correct and will work the way I think it will. The application isn't responding as expected and I suspect this bit of code is the culprit.
Android :: Call Java Script Function From Activity
Jan 31, 2010can u tell me how to call a java script method from android activity...
View 3 Replies View RelatedAndroid :: Java - Set Color Of TextView By Function Getcolorss
Jun 17, 2010I want to set the color of the TextView by the function getcolorss. I tried a lot of different ways but i cant get in it.
import java.awt.*;
import android.graphics.Color;
public class test extends Activity {
TextView text1 = (TextView) findViewById(R.id.text1);
text1.setTextColor(getcolorss(1));
public Color getcolorss(int x)
{
switch(x)
{
case 1: return Color.BLUE;
case 2: return Color.RED;
}
}}
Android :: Implement Javascript SetTimeout Function In Java
Nov 1, 2010I am currently trying to integrate a live search functionality in android. I use a customized Autocomplete widget. The widget itself provides me with a threshold to only start a query after a certain amount of characters have been typed in. But what I also want is that a query only starts, say if a user has stopped typing for 2 seconds.
As I load my contents with a AsyncTask I tried blocking the doInBackground function by calling Thread.sleep() right at the beginning. If the user would then continue typing the program would look after an existing task, cancel it and start a new one. This was my idea. But it doesn't quite work the way I expected. Sometimes it sends out queries even if the user is still typing, sometimes queries are canceled after the users stopped typing. Do you have any ideas on this or maybe a better way to solve this? Here are the code snippets:.....................
Android :: Java Equivalent Of .NET Path.Combine() Function?
Aug 14, 2010We are converting apps to Android from .NET
Is there a Java equivalent of the .NET Path.Combine() function?
Currently we check the / on each folder etc before building paths.
Android :: Does Java Function Call Spawns New Thread For Execution?
Jun 24, 2010Suppose i have one simple function in my program. Whenever i call that function does a new thread or process is spawned to execute the function or it is executed under the main thread memory space only.
View 4 Replies View RelatedAndroid :: Pass Javascript Function To Java Using Webview AddJavascripInterface
May 12, 2009I made a webview.addjavascriptinterface(geo, "geo"); to access the geo class from javascript, and, in the html-javascript I write: --------- function successCallback(p){ document.write("helo"); }
View 3 Replies View RelatedAndroid :: Retrieve Java Script Function Value In Webview Component
Feb 17, 2010How can I retrieve the java script function value from a web page loaded withing a webview component?
View 1 Replies View RelatedAndroid :: Builtin Function In Java For Removing Space Between XML Tags
Nov 24, 2010Is there any built-in function available in java for removing contents (ex: white space) between XML tags: <student> <name>miya</name> <number>12</number> </student> I want to convert the above document as: <student><name>miya</name><number>12</number></student> by removing the white space?
View 2 Replies View RelatedIn-memory DEX Loading Function Removed In Android 4.4
Jan 9, 2014Noticed in Android 4.4, Google removed one of internal functions in class, DexFile:
native private static int openDexFile(byte[] fileContents);
which is capable of performing loading dex from byte-array without going through reading the dex file on disk, which has proven to be very useful
Android :: Try To Learn Java For Phone Devices / Update Function Not Working
May 14, 2010I try to learn java for android devices. i have to create the update function. But still have one question: How?
in class root
public void update(){maindebug("update"); // This is my debug function}
public void run(){ while(isRunning){ // isRunning is a boolean variable
SystemClock.sleep(100);
update();}}
and inside onCreate run(); but it doesnt work.
Android :: Java Reflection To Call Higher API Level Function / Abstract Class
Jul 6, 2010My point is to be able to call a 2.1 API if it exists, while the application should be able to run in 1.5
Specifically, I am making a GPS application which would like to call android.location.LocationManager.addNmeaListener if available. My problem is that this call takes as parameter an abstract class (GpsStatus.NmeaListener) which I cannot pass directly to Class.GetMethod (or my application won't work in 1.5). What I am currently trying is a) to create a wrapper class for GpsStatus.NmeaListener:......................
Android :: Java.lang.reflect.InvocationTargetException During Calling A Function Of Another Application At Runtime
Apr 17, 2009I am calling a method of another .apk file dynamically at runtime in my application. I can execute it successfully if method does not contain any variable which is defined outside of that method.
But if I am using the variables which are defined outside that method ( in the same activity or same .apk) then my application throws "java.lang.reflect.InvocationTargetException" at runtime.
For e.g. if method defines as ,
COE:...................
Android :: Using Control Equivalent To Java Swing JSpinner
Oct 17, 2010I want to use a control similar to Swing JSpinner in an Android application. I know that Android has a widget called Spinner, but it's more like a combo box than a JSpinner. I've noticed that DatePicker and TimePicker widgets are using components that are just like JSpinner. The only problem is that I don't really want Date or Time. I just want to get some integer, say from 1 to 50, that user chooses. I've searched Android API reference in and out, but I couldn't find any clue on how to do this.
View 2 Replies View RelatedAndroid :: All .class Files In My Java Application Loaded Into Memory After Appliaction Start?
Feb 3, 2010I am making an app for Android, in my Activity I need to load an array of about 10000 strings. Loading it from database was slow, so I decided to put it directly into one .java file (as a private field). I have about 20 of these classes containing string arrays and my question is, are all the classes loaded into memory after my application is started? If so the Activity in which I need these strings would be loaded quickly, but the application as a whole would have a slow start...
Is there other way, how to very quickly load an 10000 string array from a file?
UPDATE:
Why I need these strings? My Android app allows you to find "journeys" in Prague's public transit - you choose departure stop, arrival stop and it finds your journey (have a look here). My app has a suggestions feature - you enter leter "c" as your departure stop and a suggestions ListView appears with stops starting with "c". For these suggestions I need the strings. Fetching the suggestions from database is slow (about 400ms on G1).
Android : Java.lang.out Of Memory Error - Bitmap Size Exceeds VM Budget
Aug 19, 2010In my application am displaying a list of names and respective pictures ? I am picking picture from gallery through Durable.getFromPath(). ? am displaying list , some i encountered with out of memory error ? please help me to sort out this error?
View 1 Replies View RelatedAndroid : Execute DD Command From Java App / "copy" Internal Flash Memory In Sdcard
Jul 25, 2009It's possible execute DD command from my Java application? I need to "copy" internal flash memory in a sdcard.
View 16 Replies View RelatedAndroid :: Call Java File On Click In Another Java Class?
May 19, 2010i 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;...........
Android : Can Not Call A Java Method Using Add Java Script Interface()
Mar 16, 2009I'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 RelatedAndroid :: Java.io / Java.Lang Different From Packages In Windows?
Aug 8, 2009Java 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 RelatedAndroid :: Java Compatibility With GetFields Method In Android Java.lang.Class
Feb 11, 2009I'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; ....
}
Android :: Installer Intent To Install On Memory Card Or On Phone Memory
Dec 2, 2009How to tell the installer intent to install on memory card or on phone memory ?
View 2 Replies View RelatedAndroid :: Out Of Memory / Orientation Change / Memory Analyzer Question
Jan 21, 2010My application is designed to support both portrait and landscape orientations. Using my HTC IO device, it survives 12 orientation changes before throwing an out of memory exception while inflating my activity.When I follow the recommended procedure of using DDMS to first force a GC and then write a heap dump, and then load it into the Eclipse Memory Analyzer, there is only one retained instance of my application, as there should be. None of the other retained objects are obvious offenders. Just for yuks, I reran the test, and did everything the same way except I didn't force a GC. In this case I see 13 instances of my application, which is more consistent with throwing an OOM exception. Is this telling me something useful? If forcing a GC with DDMS reclaims the memory used by now-defunct instances of my activity, I would have thought the VM would have garbage collected some, if not all of these defunct activities automatically. Do I need to request GC at the very beginning of my activity lifecycle to make sure?
View 7 Replies View RelatedAndroid :: Call Java Methods From One Java Class To Another In Android?
Nov 3, 2010i 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;...........