[DEV] - (DEPRECATED) show points on map

Menion · November 16, 2010, 07:14:40

Simple solution for using Locus as external viewer of points from other applications!

6.7.2011 - This method is DEPRECATED - use new API instead - viewtopic.php?f=29&t=767

[s:ounfezv9]19.4.2011 - New update of calling method - version 2

working for version >= 1.5.3

simple code example says more then few pages of words (use commentary as helping solution)

Code Select

	private void callLocus() {
		ByteArrayOutputStream baos = null;
		DataOutputStream dos = null;
		try {
		    baos = new ByteArrayOutputStream();
		    dos = new DataOutputStream(baos);

		    // version
		    dos.writeInt(2);

		    // write objects names
		    dos.writeUTF("Points from my application");
		    
		    // write category count - here I write three categories. Categories are defined as
                    // array of points that share same map icon!
		    dos.writeInt(3);
		    
		    // write categories
		    writeCategory(dos);
		    writeCategory(dos);
		    writeCategory(dos);
		    
		    // flush data to output stream
		    dos.flush();
		    
		    // create intent with right calling method
		    Intent intent = new Intent();
		    intent.setAction(Intent.ACTION_VIEW);
		    intent.setData(Uri.parse("menion.points:extraDataSomeName"));
		   
		    // here put data into intent
		    intent.putExtra("extraDataSomeName", baos.toByteArray());

		    // finally start activity
		    startActivity(intent);
		} catch (Exception e) {
		    Log.e(TAG, "callLocus()", e);
		} finally {
			try {
				if (baos != null) {
					baos.close();
					baos = null;
				}
				if (dos != null) {
					dos .close();
					dos = null;
				}
			} catch (Exception e) {
				// catch not needed
			}
		}
	}
	
	private void writeCategory(DataOutputStream dos) {
		try {
			// convert resource to byte array
			Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.icon_gc_wherigo);
			ByteArrayOutputStream baos2 = new ByteArrayOutputStream();
			bitmap.compress(Bitmap.CompressFormat.PNG, 100, baos2);
			byte[] image = baos2.toByteArray();
			baos2.close();

			// write image data or size '0' and no data if use default image of Locus (currently just red dot)
                       - so if you want write image use this
                        dos.writeInt(image.length); // image size
			dos.write(image); // image data
                        - and if you don't want use only this
                        dos.writeInt(0);

			// write all points now
			int pointCount = 1000;
			dos.writeInt(pointCount);
			for (int i = 0; i < pointCount; i++) {
				// write item name
				dos.writeUTF("name_" + (i + 1));
				// write item description
				dos.writeUTF("some description with <html>tags</html>!");
				// extra values (describe below - optional)
				dos.writeUTF("");
				// write latitude
				dos.writeDouble(50.0 + 0.01 * i);
				// write longitude
				dos.writeDouble(14.0 + 0.01 * i);
			}
		} catch (Exception e) {
		    Log.e(TAG, "writeCategory()", e);
		}
	}

Extra values written in code can be used for extending possibilities which user can do with point

currently supported:

Call-back - "intent;ButtonName;com.super.application;com.super.application.Main;returnData;someStringData"

intent - just identifier
ButtonName - String that shows on button
com.super.application - The name of the package that the component exists in
com.super.application.Main - The name of the class inside of com.super.application that implements the component.
returnData - String uder which data will be stored. Can be retrieved by String data = getIntent.getStringExtra("returnData");
someStringData - data stored in intent at returnData StringExtra place
[/list]
[/list]

Actual application that use this feature
c:geo[/s:ounfezv9]

Menion · December 09, 2010, 13:59:20

Simple method is to check, if Locus allowed to handle points and is in system ...

use this

Code Select

public static boolean isLocusAvailable(Activity activity) {
    try {
        // set intent
        final PackageManager packageManager = activity.getPackageManager();
        final Intent intent = new Intent(Intent.ACTION_VIEW);
        intent.setData(Uri.parse("menion.points:x"));
			
        // return true or false
        return packageManager.queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY).size() > 0;
    } catch (Exception e) {
        return false;
    }
}

cborlasa78 · June 18, 2011, 04:47:02

simple methods are very good. so that everyone can comprehend easliy

evanjones246 · March 12, 2012, 20:34:56

+1... I just tried this and it worked perfectly. thanks for sharing this very helpful information.

Quote from: "menion"Simple method is to check, if Locus allowed to handle points and is in system ...

use this
Code Select Expand
public static boolean isLocusAvailable(Activity activity) { try { // set intent final PackageManager packageManager = activity.getPackageManager(); final Intent intent = new Intent(Intent.ACTION_VIEW); intent.setData(Uri.parse("menion.points:x")); // return true or false return packageManager.queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY).size() > 0; } catch (Exception e) { return false; } }

Las Vegas Show Guide Vegas Shows

Menion · March 13, 2012, 08:04:14

hi,
if you wanna use such features, I highly recommend use Locus API which already include this feature and much more ...

[DEV] - (DEPRECATED) show points on map

Menion

Menion

cborlasa78

evanjones246

Menion