Android: get values of the Temperature Sensor, show them on the display

Mainactivity.java: [code] public class MainActivity extends AppCompatActivity implements SensorEventListener { private SensorManager mSM; private Sensor mTemp; private TextView sensorTextView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); sensorTextView = findViewById(R.id.sensorTextview); mSM = (SensorManager) getSystemService(SENSOR_SERVICE); mTemp = mSM.getDefaultSensor(Sensor.TYPE_AMBIENT_TEMPERATURE); } @Override public void onSensorChanged(SensorEvent sensorEvent) { float tmpval = sensorEvent.values[0]; sensorTextView.setText("Temp :" + (tmpval) ); } @Override

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Android Canvas: put Text in the middle of the screen

Code: [code] paint = new Paint(Paint.ANTI_ALIAS_FLAG); paint.setTextAlign(Paint.Align.CENTER); canvas.drawText("Hello Text", getMeasuredWidth()/2, getMeasuredHeight()/2, paint); [/code]

Android Canvas: put Bitmap in the middle of the screen

Code: [java] canvas.drawBitmap(bitmap, (getMeasuredWidth()/2)-(bitmap.getWidth()/2), (getMeasuredHeight()/2 -(bitmap.getHeight()/2)), null); [/java]