Android Open Source - Web-App-Sampler-Android Fullscreen Activity

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License

The source code is released under:

Creative Commons Legal Code CC0 1.0 Universal CREATIVE COMMONS CORPORATION IS NOT A LAW FIRM AND DOES NOT PROVIDE LEGAL SERVICES. DISTRIBUTION OF THIS DOCUMENT DOES NOT CREATE AN ATTORNE...

Java Source Code

package com.example.webappsampler;
// ww  w.j  av  a2  s .c  o m
import java.util.List;

import android.app.Activity;
import android.app.AlertDialog;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

import com.connectsdk.device.ConnectableDevice;
import com.connectsdk.device.ConnectableDeviceListener;
import com.connectsdk.device.DevicePicker;
import com.connectsdk.discovery.CapabilityFilter;
import com.connectsdk.discovery.DiscoveryManager;
import com.connectsdk.service.DeviceService;
import com.connectsdk.service.DeviceService.PairingType;
import com.connectsdk.service.capability.WebAppLauncher;
import com.connectsdk.service.capability.listeners.ResponseListener;
import com.connectsdk.service.command.ServiceCommandError;
import com.connectsdk.service.sessions.WebAppSession;

public class FullscreenActivity extends Activity {
  private Button mLaunchButton;
  private Button mCloseButton;
  private Button mSendButton;
  
  private EditText mMessageText;
  private TextView mStatusTextView;
  
  private DevicePicker mDevicePicker;
  
  private ConnectableDevice mDevice;
  private WebAppSession mWebAppSession;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_fullscreen);
    
    mLaunchButton = (Button) findViewById(R.id.launchButton);
    mLaunchButton.setOnClickListener(mLaunchClickListener);
    
    mCloseButton = (Button) findViewById(R.id.closeButton);
    mCloseButton.setOnClickListener(mCloseClickListener);
    
    mSendButton = (Button) findViewById(R.id.sendButton);
    mSendButton.setOnClickListener(sendClickListener);
    
    mMessageText = (EditText) findViewById(R.id.messageText);
    mStatusTextView = (TextView) findViewById(R.id.statusTextView);
    
    DiscoveryManager.init(getApplicationContext());
    
    CapabilityFilter webAppFilter = new CapabilityFilter(WebAppLauncher.Launch, WebAppLauncher.Close, WebAppLauncher.Message_Send);
    
    DiscoveryManager.getInstance().setCapabilityFilters(webAppFilter);
    DiscoveryManager.getInstance().start();
    
    mDevicePicker = new DevicePicker(this);
  }
  
  private void handleConnectSuccess() {
    mLaunchButton.setEnabled(false);
    mCloseButton.setEnabled(true);
    mSendButton.setEnabled(true);
    mMessageText.setEnabled(true);
  }
  
  private void cleanup() {
    if (mWebAppSession != null)
    {
      mWebAppSession.disconnectFromWebApp();
      mWebAppSession = null;
    }
    
    if (mDevice != null)
    {
      mDevice.removeListener(mDeviceListener);
      mDevice.disconnect();
      mDevice = null;
    }
    
    mLaunchButton.setEnabled(true);
    mCloseButton.setEnabled(false);
    mSendButton.setEnabled(false);
    mMessageText.setEnabled(false);
  }
  
  private void log(String message) {
    String currentMessage = mStatusTextView.getText().toString();
    String newMessage = message + "\n" + currentMessage;
    mStatusTextView.setText(newMessage);
  }
  
  private View.OnClickListener mLaunchClickListener = new View.OnClickListener() {
    
    @Override
    public void onClick(View v) {
      if (mWebAppSession != null || mDevice != null)
        cleanup();
      
      AlertDialog alertDialog = mDevicePicker.getPickerDialog("Select a device", mDeviceSelectListener);
      alertDialog.show();
    }
  };
  
  private View.OnClickListener mCloseClickListener = new View.OnClickListener() {
    
    @Override
    public void onClick(View v) {
      log("Closing web app");
      
      mWebAppSession.close(null);
      mWebAppSession = null;
      cleanup();
    }
  };
  
  private View.OnClickListener sendClickListener = new View.OnClickListener() {
    
    @Override
    public void onClick(View v) {
      final String message = mMessageText.getText().toString();
      
      log("Sending message: \"" + message + "\"");
      
      mWebAppSession.sendMessage(message, new ResponseListener<Object>() {
        
        @Override
        public void onError(ServiceCommandError error) {
          log("Could not send message, disconnecting...");
          cleanup();
        }
        
        @Override
        public void onSuccess(Object object) {
          log("Message \"" + message + "\" sent successfully.");
        }
      });
      
      mMessageText.setText("");
    }
  };
  
  private AdapterView.OnItemClickListener mDeviceSelectListener = new AdapterView.OnItemClickListener() {
    public void onItemClick(android.widget.AdapterView<?> arg0, View arg1, int arg2, long arg3) {
      mStatusTextView.setText("");
      
      mDevice = (ConnectableDevice)arg0.getItemAtPosition(arg2);
      log("Connecting to device "  + mDevice.getFriendlyName());
      mDevice.addListener(mDeviceListener);
      mDevice.connect();
    };
  };
  
  private ConnectableDeviceListener mDeviceListener = new ConnectableDeviceListener() {
    
    @Override
    public void onPairingRequired(ConnectableDevice device,
        DeviceService service, PairingType pairingType) {
      // since we haven't enabled pairing, we don't need to solve for this case
    }
    
    @Override
    public void onDeviceReady(ConnectableDevice device) {
      log("Connected to device "  + device.getFriendlyName());
      
      String webAppId = null;
      
      if (device.getServiceByName("Chromecast")!= null)
        webAppId = "DDCEDE96";
      else if (device.getServiceByName("webOS TV") != null)
        webAppId = "SampleWebApp";
      
      if (webAppId != null)
      {
        log("Launching web app with id " + webAppId);
        device.getWebAppLauncher().launchWebApp(webAppId, mWebAppLaunchListener);
      }
    }
    
    @Override
    public void onDeviceDisconnected(ConnectableDevice device) {
      log("Disconnected from device");
      cleanup();
    }
    
    @Override
    public void onConnectionFailed(ConnectableDevice device,
        ServiceCommandError error) {
      log("Could not connect to device " + error.getLocalizedMessage());
      cleanup();
    }
    
    @Override
    public void onCapabilityUpdated(ConnectableDevice device,
        List<String> added, List<String> removed) {
      // we can ignore this case
    }
  };
  
  private WebAppSession.LaunchListener mWebAppLaunchListener = new WebAppSession.LaunchListener() {
    
    @Override
    public void onError(ServiceCommandError error) {
      log("Web app could not be launched: " + error.getLocalizedMessage());
      cleanup();
    }
    
    @Override
    public void onSuccess(WebAppSession webAppSession) {
      log("Web app launch successful, connecting... ");
      
      mWebAppSession = webAppSession;
      mWebAppSession.connect(mWebAppConnectListener);
    }
  };
  
  private ResponseListener<Object> mWebAppConnectListener = new ResponseListener<Object>() {
    public void onSuccess(Object object) {
      log("Web app connected!");
      handleConnectSuccess();
    };
    
    @Override
    public void onError(ServiceCommandError error) {
      log("Web app could not be connected: " + error.getLocalizedMessage());
      cleanup();
    }
  };
}

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