Android Intents PART-1

1. Display the phone dialer with the given number

 Intent myActivity2 = new Intent (Intent.ACTION_DIAL,  
 Uri.parse( "tel:987-654-3210"));  

2. Doing a Google search

 Intent intent = new Intent(Intent.ACTION_WEB_SEARCH);  
 intent.putExtra(SearchManager.QUERY, "DJ-android blog");  
 startActivity(intent);  

3. Show all your Contacts

 String myData = "content://contacts/people/";  
 Intent myActivity2 = new Intent(Intent.ACTION_VIEW,Uri.parse(myData));  
 startActivity(myActivity2);  

4. Show a Particular Contact

 String myData = "content://contacts/people/100";  
 Intent myActivity2 = new Intent(Intent.ACTION_VIEW,Uri.parse(myData));  
 startActivity(myActivity2);  

5. Edit a Particular Contact

 String myData = "content://contacts/people/2";  
 Intent myActivity2 = new Intent(Intent.ACTION_EDIT,Uri.parse(myData));  
 startActivity(myActivity2);  

6. Geo Mapping an Address

 String geoCode = "geo:0,0?q=1860+east+18th+street+cleveland+oh";  
 Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(geoCode));  
 startActivity(intent);  

 String geoCode = "geo:23.0333,72.6167";  
 Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(geoCode));  
 startActivity(intent);  

 String thePlace = "Cleveland State University";  
 Intent intent = new Intent(android.content.Intent.ACTION_VIEW,Uri.parse("geo:0,0?q= (" + thePlace + ")"));  
 startActivity(intent);  

 String geoCode = "google.streetview:cbll=41.5020952,-81.6789717&cbp=1,270,,45,1&mz=1";  
 Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(geoCode));  
 startActivity(intent);  

You need below Permission :

 <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />  
 <uses-permission android:name="android.permission.INTERNET" />