InputStickAPIDemoMain

package com.inputstick.apps.apidemo;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.Intent;
import android.graphics.LightingColorFilter;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

import com.inputstick.api.ConnectionManager;
import com.inputstick.api.InputStickError;
import com.inputstick.api.InputStickStateListener;
import com.inputstick.api.basic.InputStickHID;

public class MainActivity extends Activity implements InputStickStateListener {

  private TextView textViewState;

  private Button buttonConnect;
  private Button buttonKeyboard;
  private Button buttonMouse;
  private Button buttonMedia;
  private Button buttonGamepad;
  private Button buttonWeb;

  private static final LightingColorFilter f = new LightingColorFilter(0xFFFFFFFF, 0xFFFFFFFF);

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

    textViewState = (TextView)findViewById(R.id.textViewState);

    buttonConnect = (Button)findViewById(R.id.buttonConnect);
    buttonConnect.setOnClickListener(new OnClickListener() {
      public void onClick(View arg0) {
        //depending on current state:, choose appropriate action:
        int state = InputStickHID.getState();
        switch (state) {
          case ConnectionManager.STATE_CONNECTED:
          case ConnectionManager.STATE_CONNECTING:
          case ConnectionManager.STATE_READY:
            //close Bluetooth connection
            InputStickHID.disconnect();
            break;
          case ConnectionManager.STATE_DISCONNECTED:
          case ConnectionManager.STATE_FAILURE:
            InputStickHID.connect(MainActivity.this.getApplication());

            /* note: you may also use direct Bluetooth connection.
             * In such case it is not longer necessary that InputStickUtility is installed on the device.
             * However there are other requirements:
             * -BLUETOOTH and BLUETOOTH_ADMIN permissions must be added to manifest file,
             * -MAC address must be manually provided
             * -if InputStick is password protected, encryption key must be also provided (MD5(password)), use null otherwise
             *
             * InputStickHID.connect(MainActivity.this.getApplication(), "30:14:07:31:43:59", null); //InputStick BT2.0
             * InputStickHID.connect(MainActivity.this.getApplication(), "20:CD:39:B0:D0:26", null, true); //InputStick BT4.0
             */

            break;
        }
      }
    });

    buttonKeyboard = (Button)findViewById(R.id.buttonKeyboard);
    buttonKeyboard.setOnClickListener(new OnClickListener() {
      public void onClick(View arg0) {
        startActivity(new Intent(MainActivity.this, KeyboardDemoActivity.class));
      }
    });
    buttonMouse = (Button)findViewById(R.id.buttonMouse);
    buttonMouse.setOnClickListener(new OnClickListener() {
      public void onClick(View arg0) {
        startActivity(new Intent(MainActivity.this, MouseDemoActivity.class));
      }
    });
    buttonMedia = (Button)findViewById(R.id.buttonMedia);
    buttonMedia.setOnClickListener(new OnClickListener() {
      public void onClick(View arg0) {
        startActivity(new Intent(MainActivity.this, MediaDemoActivity.class));
      }
    });
    buttonGamepad = (Button)findViewById(R.id.buttonGamepad);
    buttonGamepad.setOnClickListener(new OnClickListener() {
      public void onClick(View arg0) {
        startActivity(new Intent(MainActivity.this, GamepadDemoActivity.class));
      }
    });
    buttonWeb = (Button)findViewById(R.id.buttonWeb);
    buttonWeb.setOnClickListener(new OnClickListener() {
      public void onClick(View arg0) {
        startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.inputstick.com/developers")));
      }
    });
  }

  @Override
  public void onPause() {
    //state updates are no longer needed
    InputStickHID.removeStateListener(this);
    super.onPause();
  }

  @Override
  public void onResume() {
    super.onResume();
    //onStateChanged will be called when connection state changes
    InputStickHID.addStateListener(MainActivity.this);
    manageUI(InputStickHID.getState());
  }

  @Override
  public void onBackPressed() {
    InputStickHID.disconnect();
    //you may also choose to keep the connection alive and disconnect only when "buttonConnect" is clicked
    super.onBackPressed();
  }


  @Override
  public void onStateChanged(int state) {
    //make UI adjustments for new connection state
    manageUI(state);
  }

  private void manageUI(int state) {
    /*
     * Depending on connection state:
     * - set appropriate text on "Connect" button
     * - display information about connection state
     * - change color filter of button icons.
     * Since the buttons are not responsible for sending any USB reports it is not necessary to enable/disabele them.
     */
    switch (state) {
      case ConnectionManager.STATE_DISCONNECTED:
        textViewState.setText("State: Disconnected");
        buttonConnect.setText("Connect");
        enableUI(false);
        break;
      case ConnectionManager.STATE_CONNECTING:
        textViewState.setText("State: Connecting");
        buttonConnect.setText("Cancel");
        enableUI(false);
        break;
      case ConnectionManager.STATE_CONNECTED:
        textViewState.setText("State: Connected");
        //Bluetooth connection was established, it is now possible to send commands to InputStick
        //however USB host is not ready yet to accept keyboard or mouse reports!
        buttonConnect.setText("Disconnect");
        enableUI(false);
        break;
      case ConnectionManager.STATE_READY:
        textViewState.setText("State: Ready");
        //InputStick is ready to communicate with USB host
        buttonConnect.setText("Disconnect");
        enableUI(true);
        break;
      case ConnectionManager.STATE_FAILURE:
        textViewState.setText("State: Failure");
        //after STATE_FAILURE, STATE_DISCONNECTED will occur, so it is not necessary to manage UI here
        //buttonConnect.setText("Connect");
        //enableUI(false);

        //maybe InputStickUtility is not installed?
        AlertDialog ad = InputStickHID.getDownloadDialog(MainActivity.this);
        //if that caused the problem, ad will be != null
        if (ad != null) {
          ad.show();
        } else {
          //something else has caused the problem.
          //Get error code & show error message
          Toast.makeText(MainActivity.this, "Connection failed: " + InputStickError.getFullErrorMessage(InputStickHID.getErrorCode()), Toast.LENGTH_LONG).show();
        }
        break;
      default:
    }
  }

  private void enableUI(boolean enabled) {
    Drawable d;
    if (enabled) {
      d = buttonKeyboard.getCompoundDrawables()[2];
      d.clearColorFilter();
      d = buttonMouse.getCompoundDrawables()[2];
      d.clearColorFilter();
      d = buttonMedia.getCompoundDrawables()[2];
      d.clearColorFilter();
      d = buttonGamepad.getCompoundDrawables()[2];
      d.clearColorFilter();
    } else {
      d = buttonKeyboard.getCompoundDrawables()[2];
      d.setColorFilter(f);
      d = buttonMouse.getCompoundDrawables()[2];
      d.setColorFilter(f);
      d = buttonMedia.getCompoundDrawables()[2];
      d.setColorFilter(f);
      d = buttonGamepad.getCompoundDrawables()[2];
      d.setColorFilter(f);
    }
  }
}