Twitter auth

/*
 * AndroidManifest.xmlに
 * <uses-permission android:name="com.twitter.android.permission.AUTH_APP" />
 * を追加する必要がある
 */
public class MainActivity extends Activity {
    private static final String TAG = MainActivity.class.getSimpleName();
    private static final int AUTH_REQUEST_CODE = 1;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        final Button authButton = (Button) findViewById(R.id.auth_button);
        authButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                try {
                    Intent intent = new Intent();
                    intent.setClassName("com.twitter.android", "com.twitter.android.AuthorizeAppActivity");
                    intent.putExtra("ck", "Consumer Key");
                    intent.putExtra("cs", "Consumer Secret");
                    startActivityForResult(intent, AUTH_REQUEST_CODE);
                } catch (ActivityNotFoundException e) {
                    Toast.makeText(getApplicationContext(), "Auth activity not found", Toast.LENGTH_SHORT).show();
                }
            }
        });
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode != AUTH_REQUEST_CODE)
            return;
        if (data == null) {
            Toast.makeText(getApplicationContext(), "Authentication failed", Toast.LENGTH_SHORT).show();
            return;
        }
        final Bundle extra = data.getExtras();
        for (String key : extra.keySet()) {
            Log.d(TAG, key + " = " + extra.get(key).toString());
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }
    
}