1. Download and Install VirtualBox
2. From the same website, download & Install Oracle Virtual Box Extension Pack
3. Download Android 4 Image
4. Download .7z unarchiver if you don’t have (Mac / Win)
5. Extract Android 4 Image (Ignore errors if any)
6. Double click VMLite-Android-v4.0.4.vbox

To test the emulator is available from IntelliJ, go to Tools > Android > Monitor. I will popup as if it is just another device. I verified I can install and debug on the emulator. Make sure to turn on Settings > Developer options > USB Debugging.

This works like charm. No need for command line or anything.

This is basic steps when you call the Camera Intent.

1. Prepare for the directory to save the image
2. Create Intent with Camera option
3. Start Activity with the intent. When you start it, don’t forget to speicify the request code.

 
	public static final int CAMERA_REQUEST = 1000;
	public Uri mFileUri = null;
 
	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
 
		Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
 
		File mediaStorageDir = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES), "CameraTest");
		mediaStorageDir.mkdir(); // make sure you got this folder
		Log.v("mylog",mediaStorageDir.toString());
		String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
		File mediaFile = new File(mediaStorageDir.getPath() + File.separator + "IMG_"+ timeStamp + ".jpg");
		mFileUri = Uri.fromFile(mediaFile)                   ;
		intent.putExtra(MediaStore.EXTRA_OUTPUT, mFileUri);// this line causes issue - onActivityResult not called...
		startActivityForResult(intent, CAMERA_REQUEST);
	}

After calling the intent, the result will be back in onActivityResult method. Let’s assume the user took a picture, and clicked OK icon. In the Google example above, it did not cover the case that onActivityResult gives null for the Intent in the argument. The workaround is to keep the file path in the member variable, and get the Image using Uri.fromFile method. Check the source code below.

	@Override
	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
		if (requestCode == CAMERA_REQUEST) {
			if (resultCode == RESULT_OK) {
				// Oopse ! data is null somehow. wtf
				//Toast.makeText(this, "Saved: " + data.getData(), 10).show();
 
				try {
					Bitmap bitmap = MediaStore.Images.Media.getBitmap(getContentResolver(),mFileUri);
					Toast.makeText(this,"Saved : " + bitmap.getByteCount() + " bytes" , 10).show();
				}
				catch (IOException e) {
					e.printStackTrace();
				}
			}
			else if (resultCode == RESULT_CANCELED) {
				Log.v("mylog","camera canceled");
			}
			else {
				Log.v("mylog","camera error");
			}
		}// eo if requestCode
	}// eo onActivityResult

That’s it. I googled around all over the places, but this is the answer for it. I’m not sure the exact conditions which above codes applies. I’m using Galaxy S with Android 4.1.1.

Also, don’t forget our iPad Version!

#import <Foundation/Foundation.h>
 
@interface MyPoint: NSObject
@property float x;
@property float y;
-(float) distance:(MyPoint*)other;
-(NSString*) description;
@end
 
@implementation MyPoint
@synthesize x,y;
-(float) distance:(MyPoint*)other{
	return sqrt(((self.x-other.x)*(self.x-other.x))+
	((self.y-other.y)*(self.y-other.y)));
}
-(NSString*) description{
	return [NSString stringWithFormat:@"(%f,%f)",self.x,self.y];
}
@end
 
int main(int argc,char *argv[]){
	MyPoint *a=[[MyPoint alloc] init];
	MyPoint *b=[[MyPoint alloc] init];
	a.x=10.0f;
	a.y=10.0f;
	b.x=20.0f;
	b.y=20.0f;
	NSLog(@"a %@",a);
	NSLog(@"b %@",b);
	NSLog(@"Distance is %f",[a distance:b]);
	return 0;
}

Now compile it using the command below

clang -fobjc-arc point.m -o point -framework Foundation

Run it below

./point

Features Include:

• Sleek and user friendly interface for all ages
• Customizable field of photos
• Option to import personal photos and phrases
• Option to save favorite phrases
• Easy to use touch features
• Real human voices for all photos and text ( option to choose – - male or female)
• Real professional photographs
• Body image with pain meter

Main Screen

When you open the app, you will be shown the following screen.

You can form a sentence by just clicking on the items and hitting play.

Body Chart

The body chart assists the users to point and click and show the doctor where they have pain.

Settings

Use the settings screen to update the voice preferences(male,female), put app in to edit mode (So you can add your own items) or enable tap to play (So the item starts playing with out creating sentence first- So user can simply say coffee with out first creating a sentence). You can also change columns so the items are bigger for challenged users.

Edit Mode (For Care Providers)

Care providers can add new items. It cant be more simpler. Just put the app in Edit mode and click on “Add Item” in any of the categories.

Adding an item cant be simpler as shown below.

Basic Instructions

Advance Instructions

We hope that users really benefit by using this app. You can download it from App Store today.

Click here to check your iPhone ID. Here is the stepsto find your device id.

I don’t know which store sells the cool retro-phone novelty in the U.S but they listed shops in Australia.

http://www.universal-ent.com/stockists.html

We will upload an Youtube movie once we get the product. Don’t forget to check their FB page … here!

Contact Information: http://www.universal-ent.com/contact.html

Unlikely other elevation app, you can drop the pin anywhere you want, then find out the elevation right away. The app also allows you to export the data in various formats, such as KML, CSV, summary text, image, and so on.

Get this app while it is promotional price.

Download Geo Elevation for Android NOW!

Check out the demo movie here

The app also works for tablet device.

In addition, we will cover some of those programming materials in our new online course, Mobile GIS (Starting this september).

Download Geo Measure from Google Play

Geo Elevation is a powerful tool to build a cross-sectional elevation chart from any paths/points on the map with a few clicks. Simply create a path and click on “Get Elevation” you will see a nice chart. Now, this app works on both iPhone and iPad! Buy only once, and enjoy in both platform. We definitely recommend you to try it on iPad.

How does Mt. Everest look like if you cut through the peak, and view it from the side? Try to draw a path from your place to the nearest shoreline. See how slope decline as it approach the ocean? How about investingating the Mariana Trench’s steep slope, which goes down to the deepest place on the Earth?

In addition, the line of the elevation profile is clickable to indicate corresponding location on the path that you draw.

[Features]
- Get Elevation from single point
- Get Elevation from a path
- Path will automatically allocate 100 points (really high-definition of elevation profiles!)
- Export cross-sectional chart in PDF
- Export cross-sectional chart in PNG
- Export raw data in CSV format
- Export the path in KML
- Single-click to export all formats
- Indicator to match the side view and the top view
- Retina display compatible
- Customized UI for NEW iPad
- Multi-touch in the chart screen
- Current Location On/Off
- Draggable Waypoints (Adjust the path later)
- Instant calculation of the distance
- State of art intuitive path draw tool
- Universal binary works both iPhone and iPad.
- Unlimited Undo / Redo
- Convenient “Clear All” button to reset
- Navigation Mode (Lock the screen to browse)
- Search location to zoom the target location quickly

[Usage]
- As a bike / running route builder: It’s convenient to research your bike road profile in order to figure out the schematics of hills.

- Mobile Learning Experience in the Classroom. If you are teaching Geology or Earth Science, you might have a handout to build a cross-sectional elevation chart from a contour map, and you can let students to verify their answer by themselves. Don’t forget, Geo Elevation will provide infinite locations to investigate! The usage is unlimited.

- Possible flood area investigation: Before storm surge or high tide hit your town, verify locations or road that could be flooded. Draw the path from your house to the nearest shoreline to see the vertical profile.

- Plan your Walk or Run: If you host a walk or run event, Geo Elevation will help you to find out the slope so that you can map challenging hill in your event. Additionally, it might help you to setup multiple routs depend of the slope.

- For hiker and mountaineers (send us your review if you used for your activities!)

Add your feedback in comments or send us email to iphone [-at-] objectgraph.com.

We would like to hear more user experiences! How did you use it? What did you use it for? Is there anything to improve?

Bike Path Builder!

In this smartphone generation, we expected have a full browser functionality in API; iOS SDK is coming with UIWebView and Android has WebView.

This means, developer is able to take advantage the core engine, such as JavaScript parser. This might make developer’s life easier sometime because we can reuse same libraries from JavaScript – e.g form + validations, drawing chart and so on.

I looked around android documentations, StackOverflow and some forums but I could not find a good summary and organized complete example.
Here, I demonstrate my experiment of a full cycle of JavaScript / Java function calls from both sides.

Setup

1. Add WebView in your layout, and add HTML file in asset folder.

<WebView android:id="@+id/myWebView"
         android:layout_width="fill_parent"
         android:layout_height="fill_parent"></WebView>

2. Create a JavaScriptHandler class which has a reference to parent activity.

public class JavaScriptHandler {
    MyActivity parentActivity;
    public JavaScriptHandler(MyActivity activity) {
        parentActivity = activity;
    }
 
    public void setResult(int val){
        this.parentActivity.javascriptCallFinished(val);
    }
 
    public void calcSomething(int x, int y){
        this.parentActivity.changeText("Result is : " + (x * y));
    }
}

3. Load HTML and JavaScript in the Activity class and add the JavaScriptHandler class above.

myWebView = (WebView)this.findViewById(R.id.myWebView);
myWebView.getSettings().setJavaScriptEnabled(true);
myWebView.addJavascriptInterface(new JavaScriptHandler(this), "MyHandler");
myWebView.loadUrl("file:///android_asset/index.html");

4. Now, it’s ready to call from both side.

A) Call JavaScript from Java
In step 3, we added the handler in the WebView, and “MyHandler” would be the object that you can call in the html as below:

window.MyHandler.myfunction();

B) Call JavaScript from Java

On the other hand, if you need to call JavaScript from Java side, we use loadUrl with javascript keyword as below:

myWebView.loadUrl("javascript:myjavascriptfunc()");

or you can directly manipulate something like:

myWebView.loadUrl("javascript:document.getElementById('test1').innerHTML = '<strong>"+someText+"</strong>'");

So how about the full cycle? What if I want to call JavaScript function from Java, then I would get the result back from the process?

Here is important key point: loadUrl function is asynchronous call. Let’s say, your Java function wants to call a JavaScript function via loadUrl.
However, loadUrl dispatch the thread and you need to let WebView call your handler’s function inside. So let’s create two functions: call and finished.

Calling JavaScript

public void callJavaScriptFunctionAndGetResultBack(int val1, int val2){
    myWebView.loadUrl("javascript:window.MyHandler.setResult( addSomething("+val1+","+val2+") )");
}

Catching when the JavaScript call finished

public void javascriptCallFinished(int val){
    Toast.makeText(this, "Callback got val: " + val, 5).show();
}

In this example, I’m passing two integer values in the first call function. In the argument, it’ll call addSomething() JavaScript function, and then
it places the result back by calling MyHandler’s function, which is an interface object, in order to call Java function over there. Let’s come back to
Java side. In Java side, since we get reference from the parent Activity class, we just call one of member functions.

public class JavaScriptHandler {
//....
    public void setResult(int val){
        this.parentActivity.javascriptCallFinished(val);
    }
//....

Here is the function to be called in Activity.

public void javascriptCallFinished(int val){
     Log.v("mylog","MyActivity.javascriptCallFinished is called : " + val);
}

… however this would not give a good result when you write a real app because you often put the value back to UI which need to be run in the main thread!

So use a runOnUiThread (such a nice name). If you need to pass something, you must add final keyword, which allows the variable to be used inline Runnable class.

Finally, the “Finished” function will be look like this:

public void javascriptCallFinished(final int val){
    Log.v("mylog","MyActivity.javascriptCallFinished is called : " + val);
    // I need to run set operation of UI on the main thread.
    // therefore, the above parameter "val" must be final
    runOnUiThread(new Runnable() {
        public void run() {
            myResult.setText("Callback got val: " + val);
        }
    });
}

Below is the diagram how it goes from Java to JavaScript and from JavaScript to Java.

That’s it! This could be confusing in the first look, so please download the sample code. The project is created with IntelliJ and this is 100 times better IDE than eclipse.

Download

https://github.com/kiichi/AndroidJavasScript

Demo

Reference

Most of information were published on those documentation pages:

http://developer.android.com/guide/webapps/webview.html

http://developer.android.com/resources/articles/using-webviews.html

I am pleased to announce Android version of our popular iRectangles puzzle for iOS.

You can download it here for Free.

For people who might not know.. Rectangles is the next generation of puzzle game from the same inventor of Sudoku!
The objective of the game is to create rectangles that fill the entire board. Each of the rectangle should correspond to the number of cells posted.
You can select the cells to create a rectangle by simply dragging your finger on the board. To deselect just double tap on the selected cells.

Video

Additional Screenshots

The device costs only $99 and the installation process is extremely simple. Hook up the little black antenna into your iPhone, then wait for 1 second for LED on. If you did not install Free WiPry app before, it will automatically ask you to download  the app for you.

The main screen looks like a heat map, which active channels are represented as red-yellow spikes. Press the icon to toggle different channels and use your finger to drag across all channels. For example, if you are operating your WiFi router on channel 6, scrub the frame to the middle of screen. You will see some “hot area” within the range.

This is the example of channel 1 signals in my work environment.

Other channels like 10 or 11 dominates in this screenshot.

Select your channels to investigate.

The reason that I started looking for WiFi signal scanners is because iOS5 completely hide the Apples 802.11 WiFi manager framework, even it’s for private API usage. Our academic project, WiFi Mapping, used to use the functionality but it’s not available anymore. I start exploring different data collecting methods outside of iOS native, such as accessories, Android or Windows Phone.

As far as I see the current version of WiPry, I could not find SSID information along the signal strength. This could be the same restriction from Apple for those semiconductor companies (just like I experienced in above example…). Basically, Apple is not happy to give features that developers or manufactures are able to build a WiFi scanner app / device.

WiPry could be useful to analyze conflicted channels for network engineer; however, I could not use it for my WiFi mapper app due to lack of SSID information. I show this to folks in our network team and they show me some interests to purchase this device. The response on the screen is real-time and the user is expected to have some kind of special knowledge about WiFi. I would like to hear from real network engineers’ opinion. Please leave comments if you have any thoughts.

Lantronix xPrintServer

Size: LxWxH 4.50″ x 2.37″ x .87″,

Weight:.27 Kg/0.6 pounds (xPrintServer device + power supply)

Ethernet and power connections

Power Adapter

Set up is very simple and straight forward. There’s no need to download any software or driver. You just need to connect the device to your network (router, switch, etc.) by using ethernet cable. The device will automatically discover all your network printers. Now all you need to do is connect your iPhone or iPad to the network via wifi, select the printer and print the documents.

• Connect Lantronix xPrintServer to your network and power adapter
• Open your idevices to the same network via wifi
• Choose what you want to print, select print and select your printer

You can get more details at their website: lantronix.com

You can grab one for $149.95 Here

We also added a new measure for area (Tsubo)

Here are some screenshots from Japanese version:

Also the iPad version has also been localized for Japan

Download the Version 1.1 from the app store.

Creating DB

SQLiteDatabase db = openOrCreateDatabase("mydb",MODE_PRIVATE,null);

This is a neat function which does open and create at the same time. You need to name your database (e.g. “mydb”) and specify the mode to open. In this example, I’m opening the database as private mode that allows only your app to touch the file.

Execute SQL

1
2

db.execSQL("CREATE TABLE IF NOT EXISTS mydata (first_name,last_name,age)");
db.execSQL("INSERT INTO mydata (first_name,last_name,age) VALUES('Jon','Doe',20)");

Since it’s already opened, executing CRUID operation is available via execSQL function.

Query data

1
2
3
4
5
6
7

Cursor cursor = db.rawQuery("SELECT * FROM mydata ORDER BY age",null);
if (cursor.moveToFirst()){
    do {
       Log.v("mylog", cursor.getString(0) + "," + cursor.getString(1) + "," + cursor.getString(2));
    }
    while(cursor.moveToNext());
}

To query data, you need two steps:

1. Create a cursor from the result of your select statement
2. Move the cursor and retrieve data via get… functions.

I often make a mistake to retrieve data from the cursor without calling moveToFirst() function. Let’s call it first and this returns if there is a row to return or not. After moving to the first row, keep calling moveToNext() function until you reach the end of rows.

Closing

1
2

cursor.close();
db.close();

Let’s make sure to close all connection to db. Avoid unnecessary memory usage.

That’s it. If you want to see a sample project (created by IntelliJ), please click here. You can browse the entire source code from here.

Check your forecast with our updated FengShui app 2012 Edition.

Year of the Dragon

Gong Yi Fa Cai 恭喜發財! In 2012, the Chinese New Year falls on January 23rd in
China, which occurs before the official solar start of the year on February 4th, known as Li Chun 立春 or Spring Begins. It is a powerful and dangerous year that starts fluidly; be sure to act smart and move fast. The calendar of this year is very complicated because the first new moon after the Winter Solstice on December 21, 2011 is December 23, 2012, followed by the second new moon and start of the lunar New Year, January 23, 2012 (January 22nd
in Asia). This tight start indicates a “whipping” effect that will bring about strong winds and discontent. Be sure to leave the front door of your home open this evening, especially if it is facing in a beneficial direction, so that you can gather good fortune throughout the night. It is an important year to use Feng Shui, as there will be very dangerous periods during the year for which it will feel as if you are fighting for your life to survive.

Screenshots:

You will download now!

We called it MoPic.

MoPic is a free app that makes it easy to create fun GIFs and share them with your friends.

Create a hilarious GIF animation of your cat in the washing machine, a donut disappearing in the mouth of your buddy as it’s being eaten, or anything else that comes to your mind. The possibilities are endless. Animations created with MoPic can easily be shared with your family and friends. Make them laugh endlessly as these GIFs replay these funny moments over and over again.

.

How it works:
1. Tap on “Take a Video” or “Choose from Library” buttons to select your video or single frames.
2. Tap on “Done” to generate a preview of the GIF and adjust the speed
3. Share it with your friends over Email, Twitter or Save it for later. (More options in upcoming updates)

Features:
✓ Generate random GIFs based on the video you provide
✓ Select frames you would like to use in your GIF animation
✓ Share it with your friends.
✓ Works only with 30 FPS at the moment.

Compatible Hardware: iPhone 3GS, iPhone 4, 4th gen iPod Touch, iPad 2 (in 2x mode only)
Compatible OS: iOS 4.1 and greater.

Please write us and feel free to give us your feedback or request new features that you would like to see in future updates.