Suggest Url Provider : Url « Network « Android

1. Android
2. Network
3. Url

Suggest Url Provider

 
package app.test;
import android.app.Activity;
import android.app.SearchManager;
import android.content.ContentProvider;
import android.content.ContentValues;
import android.content.Intent;
import android.content.UriMatcher;
import android.database.Cursor;
import android.database.MatrixCursor;
import android.net.Uri;
import android.os.Bundle;
import android.widget.TextView;

class SuggestUrlProvider extends ContentProvider 
{
    public static String AUTHORITY = "app.test.suggesturlprovider";
    final int SEARCH_SUGGEST = 0;
    private static final int SHORTCUT_REFRESH = 1;
    private static final UriMatcher sURIMatcher = buildUriMatcher();

    private static final String[] COLUMNS = {
            "_id",  // must include this column
            SearchManager.SUGGEST_COLUMN_TEXT_1,
            SearchManager.SUGGEST_COLUMN_TEXT_2,
            SearchManager.SUGGEST_COLUMN_INTENT_DATA,
            SearchManager.SUGGEST_COLUMN_INTENT_ACTION,
            SearchManager.SUGGEST_COLUMN_SHORTCUT_ID
            };
    
    private static UriMatcher buildUriMatcher() {
        UriMatcher matcher =  new UriMatcher(UriMatcher.NO_MATCH);
        matcher.addURI(AUTHORITY, SearchManager.SUGGEST_URI_PATH_SHORTCUT, SHORTCUT_REFRESH);
        matcher.addURI(AUTHORITY, SearchManager.SUGGEST_URI_PATH_SHORTCUT + "/*", SHORTCUT_REFRESH);
        return matcher;
    }

    @Override
    public boolean onCreate() {
        return true;
    }
    @Override
    public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
            String sortOrder) {
      String query = selectionArgs[0];
        switch (sURIMatcher.match(uri)) {
            case SEARCH_SUGGEST:
              return getSuggestions(query);
            case SHORTCUT_REFRESH:
              return null;
            default:
                throw new IllegalArgumentException("Unknown URL " + uri);
        }
    }
    private Cursor getSuggestions(String query) 
    {
      if (query == null) return null;
      String word = getWord(query);
      if (word == null)
        return null;
        MatrixCursor cursor = new MatrixCursor(COLUMNS);
        cursor.addRow(createRow1(word));
        cursor.addRow(createRow2(word));
        return cursor;
    }
    private Object[] createRow1(String query)
    {
        return columnValuesOfQuery(query,
            "android.intent.action.VIEW",
            "http://www.thefreedictionary.com/" + query,
            "Look up in freedictionary.com for",
            query);
    }

    private Object[] createRow2(String query)
    {
        return columnValuesOfQuery(query,
            "android.intent.action.VIEW",
            "http://www.google.com/search?hl=en&source=hp&q=define%3A" + query,
            "Look up in google.com for",
            query);
    }
    private Object[] columnValuesOfQuery(String query,
        String intentAction,
        String url, 
        String text1, 
        String text2) 
    {
        return new String[] {
                query,     // _id
                text1,     // text1
                text2,     // text2
                url,       // intent_data (included when clicking on item)
                intentAction, //action
                SearchManager.SUGGEST_NEVER_MAKE_SHORTCUT
        };
    }

    private Cursor refreshShortcut(String shortcutId, String[] projection) {
        return null;
    }

    public String getType(Uri uri) {
        switch (sURIMatcher.match(uri)) {
            case SEARCH_SUGGEST:
                return SearchManager.SUGGEST_MIME_TYPE;
            case SHORTCUT_REFRESH:
                return SearchManager.SHORTCUT_MIME_TYPE;
            default:
                throw new IllegalArgumentException("Unknown URL " + uri);
        }
    }

    public Uri insert(Uri uri, ContentValues values) {
        throw new UnsupportedOperationException();
    }

    public int delete(Uri uri, String selection, String[] selectionArgs) {
        throw new UnsupportedOperationException();
    }

    public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
        throw new UnsupportedOperationException();
    }
    
    private String getWord(String query)
    {
      int dotIndex = query.indexOf('.'); 
      if (dotIndex < 0)
        return null;
      return query.substring(0,dotIndex);
    }
}

public class Test extends Activity 
{
  private final static String tag ="SearchActivity";
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        final Intent queryIntent = getIntent();
        final String queryAction = queryIntent.getAction();
        final String queryString = queryIntent.getStringExtra(SearchManager.QUERY);
        if (Intent.ACTION_SEARCH.equals(queryAction)) 
        {
          this.doSearchQuery(queryIntent);
        }
        else if (Intent.ACTION_VIEW.equals(queryAction)) 
        {
          this.doView(queryIntent);
        }
        return;
    }
    @Override
    public void onNewIntent(final Intent newIntent) 
    {
        super.onNewIntent(newIntent);
        final Intent queryIntent = newIntent;
        final String queryAction = queryIntent.getAction();
        final String queryString = queryIntent.getStringExtra(SearchManager.QUERY);
        if (Intent.ACTION_SEARCH.equals(queryAction)) {
          this.doSearchQuery(queryIntent);
        }else if (Intent.ACTION_VIEW.equals(queryAction)){
          this.doView(queryIntent);
        }
        return;
    }
    private void doSearchQuery(final Intent queryIntent) 
    {
        final String queryString = queryIntent.getStringExtra(SearchManager.QUERY);
        appendText("You are searching for:" + queryString);
    }
    private void appendText(String msg)
    {
        TextView tv = (TextView)this.findViewById(R.id.text1);
        tv.setText(tv.getText() + "\n" + msg);
    }
    private void doView(final Intent queryIntent) 
    {
        Uri uri = queryIntent.getData();
        String action = queryIntent.getAction();
        Intent i = new Intent(action);
        i.setData(uri);
        i.setFlags(Intent.FLAG_ACTIVITY_PREVIOUS_IS_TOP);
        startActivity(i);
        this.finish();
    }
}

   
  

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