Initial commit

src/ve/ucv/ciens/ccg/nxtcam/MainActivity.java

@@ -0,0 +1,131 @@
+package ve.ucv.ciens.ccg.nxtcam;
+
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+
+import ve.ucv.ciens.ccg.nxtcam.utils.Logger;
+import android.app.Activity;
+import android.content.Context;
+import android.content.Intent;
+import android.net.wifi.WifiManager;
+import android.os.AsyncTask;
+import android.os.Bundle;
+import android.view.Menu;
+import android.view.View;
+import android.widget.Button;
+import android.widget.TextView;
+import android.widget.Toast;
+
+public class MainActivity extends Activity {
+	private final String TAG = "NXTCAM_MAIN";
+	private final String CLASS_NAME = MainActivity.class.getSimpleName();
+
+	private Button startButton;
+	private TextView ipField;
+
+	private WifiManager wifiManager;
+	private boolean wifiOnByMe;
+
+	@Override
+	protected void onCreate(Bundle savedInstanceState) {
+		super.onCreate(savedInstanceState);
+		setContentView(R.layout.activity_main);
+
+		startButton = (Button)findViewById(R.id.startButton);
+		startButton.setOnClickListener(startClickListener);
+
+		ipField = (TextView)findViewById(R.id.ipAddressField);
+
+		wifiManager = (WifiManager)getSystemService(Context.WIFI_SERVICE);
+
+		if(!wifiManager.isWifiEnabled()) setWifi(true);
+	}
+
+	@Override
+	public void onResume(){
+		super.onResume();
+
+		if(!wifiManager.isWifiEnabled()) setWifi(true);
+	}
+
+	@Override
+	public void onPause(){
+		super.onPause();
+
+		if(wifiManager.isWifiEnabled() && wifiOnByMe) setWifi(false);
+	}
+
+	@Override
+	public void onDestroy(){
+		super.onDestroy();
+
+		if(wifiManager.isWifiEnabled() && wifiOnByMe) wifiManager.setWifiEnabled(false);
+	}
+
+	@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;
+	}
+
+	private void startCamActivity(boolean canStart){
+		if(canStart){
+			Logger.log(Logger.LOG_TYPES.DEBUG, TAG, CLASS_NAME + ".startCamActivity() :: Launching camera activity.");
+			Intent intent = new Intent(this, CamActivity.class);
+			startActivity(intent);
+		}else{
+			Logger.log(Logger.LOG_TYPES.DEBUG, TAG, CLASS_NAME + ".startCamActivity() :: Cannot launch camera activity.");
+			Toast.makeText(this, R.string.badIpToast, Toast.LENGTH_SHORT).show();
+		}
+	}
+
+	private void setWifi(boolean on){
+		wifiManager.setWifiEnabled(on);
+		Logger.log(Logger.LOG_TYPES.DEBUG, TAG, CLASS_NAME + ".ImageTransferThread() :: setting wifi to " + (on ? "on" : "off"));
+		if(on)
+			wifiOnByMe = true;
+		else
+			wifiOnByMe = false;
+	}
+
+	private void validateIpAddress(){
+		if(ipField.getText().toString().compareTo("") != 0){
+			Logger.log(Logger.LOG_TYPES.DEBUG, TAG, CLASS_NAME + "validateIpAddress() :: Launching verification task.");
+			VerifyIpAddressTask verifyIp = new VerifyIpAddressTask();
+			verifyIp.execute(ipField.getText().toString());
+		}else{
+			Logger.log(Logger.LOG_TYPES.DEBUG, TAG, CLASS_NAME + "validateIpAddress() :: Ip address field is empty.");
+			Toast.makeText(this, R.string.emptyIpToast, Toast.LENGTH_SHORT).show();
+		}
+	}
+
+	private final View.OnClickListener startClickListener = new View.OnClickListener() {
+		@Override
+		public void onClick(View v) {
+			validateIpAddress();
+		}
+	};
+
+	private class VerifyIpAddressTask extends AsyncTask<String, Void, Boolean>{
+		private final String CLASS_NAME = VerifyIpAddressTask.class.getSimpleName();
+
+		@Override
+		protected Boolean doInBackground(String... params) {
+			try{
+				InetAddress.getByName(params[0]);
+				Logger.log(Logger.LOG_TYPES.DEBUG, TAG, CLASS_NAME + "doInBackground() :: IP address is valid.");
+				return true;
+			}catch(UnknownHostException uh){
+				Logger.log(Logger.LOG_TYPES.DEBUG, TAG, CLASS_NAME + "doInBackground() :: IP address is not valid.");
+				return false;
+			}
+		}
+
+		@Override
+		protected void onPostExecute(Boolean result) {
+			super.onPostExecute(result);
+			startCamActivity(result);
+		}
+	};
+}