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    <p>Here are the different methods I found so far:</p> <p><strong>1. Directly start the navigation:</strong></p> <p>This explicit intent will directly launch Google Navigation:</p> <pre><code>Intent intent = new Intent(android.content.Intent.ACTION_VIEW, Uri.parse("google.navigation:q=my+street+address"); startActivity(intent); </code></pre> <p>This will directly start the navigation (unfortunately without giving the user a choice of transportation means)</p> <p>.</p> <p><strong>2. Let the user select the transportation means:</strong></p> <p>This will launch the Google navigation app, but lets the user select the transportation means before starting the navigation:</p> <pre><code>Intent intent = new Intent(android.content.Intent.ACTION_VIEW, Uri.parse("http://maps.google.com/maps/?daddr=my+street+address"); intent.setClassName("com.google.android.apps.maps", "com.google.android.maps.MapsActivity"); startActivity(intent); </code></pre> <p>. </p> <p><strong>3. Start on the Google map:</strong></p> <pre><code>Intent intent = new Intent(android.content.Intent.ACTION_VIEW, Uri.parse("geo:0,0?q=my+street+address"); intent.setClassName("com.google.android.apps.maps", "com.google.android.maps.MapsActivity"); startActivity(intent); </code></pre> <p>This will launch Maps, from where the user can start the navigation (and select the transportation mode).</p> <p>In all cases, you should either use PackageManager and queryIntentActivities() or exception handling to handle cases where the user does not have Google Maps/Navigation installed.</p> <p>In my app I use method 2 which works just fine. Hope this helps.</p> <p>Add-on: Here's a method to check whether an app is installed or not. I use this to check if "com.google.android.apps.maps" is installed before calling intent.setClassName().</p> <pre><code>public static boolean isAppInstalled(String uri) { PackageManager pm = getContext().getPackageManager(); boolean app_installed = false; try { pm.getPackageInfo(uri, PackageManager.GET_ACTIVITIES); app_installed = true; } catch (PackageManager.NameNotFoundException e) { app_installed = false; } return app_installed; } </code></pre>
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    1. POSuppressing Google Maps Intent Selection Dialog
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    1. COI'd like the proper mode of transportation to already be selected for the user.
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