package com.example.cameraFocus;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.DataInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.text.DecimalFormat;
import android.view.View;
import android.widget.AdapterView;
import android.widget.Toast;
import android.app.Activity;
import android.content.Context;
import android.content.ContextWrapper;
import android.graphics.PixelFormat;
import android.hardware.Camera;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.os.Bundle;
import android.os.PowerManager;
import android.util.Log;
import android.view.MenuItem;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.TextView;
public class CameraFocusActivity extends Activity implements SurfaceHolder.Callback, SensorEventListener
{
private Camera camera;
private boolean isPreviewRunning = false;
private SurfaceView surfaceView;
private SurfaceHolder surfaceHolder;
TextView txt1;
SensorManager mSensorManager;
Sensor mAccelerometer;
Sensor mMagnetometer;
private static final String TAG = "MeasureApp";
private String[] units = { "meters", "cms", "feet", "inches"};
private double AngleA = 0.0;
private double AngleB = 0.0;
private double X1 = 0.0;
private double X2 = 0.0;
private float[] mGravity;
private float[] mMagnetic;
private double h;
private double D;
private double H;
private double L;
float[] value = new float[3];
private int unit;//default unit in mts
//mts-0,cms-1,ft-2,in-3
private Spinner spinner;
DecimalFormat ThreeDForm = new DecimalFormat("#.###");
float pressure;
float accel[] = new float[3];
float result[] = new float[3];
CharSequence test = "Results:\nObj Distance = "+D+"\nObj Height = "+H+"\nObj Length = "+L+"\nCam height = "+h+"\n"+units[unit];
private PowerManager.WakeLock wl;
private PowerManager pm;
Toast toast;
final String filename = "Measures.txt";
String m = "";
String filepath = "MeasureStorage";
File myInternalFile;
File directory;
//String[] files = new String[15];
//int count = -1;
@Override
public void onCreate(Bundle icicle)
{
Log.d(TAG, "onCreate");
super.onCreate(icicle);
Log.e(getClass().getSimpleName(), "onCreate");
getWindow().setFormat(PixelFormat.TRANSLUCENT);
setContentView(R.layout.frames); //main or frames
surfaceView = (SurfaceView) findViewById(R.id.surface);
surfaceHolder = surfaceView.getHolder();
surfaceHolder.addCallback(this);
surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
mSensorManager = (SensorManager)getSystemService(SENSOR_SERVICE);
mAccelerometer = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
mMagnetometer = mSensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD);
final Button distance = (Button) findViewById(R.id.button1);
final Button height = (Button) findViewById(R.id.button7);
final Button rst_valider = (Button) findViewById(R.id.button2);
txt1 = (TextView) findViewById(R.id.textView1);
final Button adjh = (Button) findViewById(R.id.button3);
final EditText edit = (EditText) findViewById(R.id.editText1);
final Button length = (Button) findViewById(R.id.button4);
distance.setEnabled(false);
height.setEnabled(false);
length.setEnabled(false);
edit.setText("0.0");
unit = 0;
txt1.setText(test);
ContextWrapper contextWrapper = new ContextWrapper(getApplicationContext());
final File directory = contextWrapper.getDir(filepath, Context.MODE_APPEND);
myInternalFile = new File(directory , filename);
/*try
{
BufferedWriter buf = new BufferedWriter(new FileWriter(myInternalFile, true));
buf.write("Measures:\n");
buf.newLine();
buf.close();
}
catch(IOException e)
{
e.printStackTrace();
}*/
//Toast.makeText(this, "Adjust the height", Toast.LENGTH_SHORT);
try
{
pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
wl = pm.newWakeLock(PowerManager.SCREEN_BRIGHT_WAKE_LOCK,TAG);
wl.acquire();
}
catch (Exception ex)
{
Log.e("exception", "here 1");
}
addListenerOnButton();
addListenerOnSpinnerItemSelection();
distance.setOnClickListener(new View.OnClickListener()
{
public void onClick(View view)
{
//old method
AngleA = getDirection();//taking x value
AngleA = Math.toRadians(90)-AngleA;
D = Double.valueOf(ThreeDForm.format(Math.abs(h*(Math.tan((AngleA))))));
test = "Results:\nObj Distance = "+D+"\nObj Height = "+H+"\nObj Length = "+L+"\nCam height = "+h+"\n"+units[unit];
toast = Toast.makeText(getApplicationContext(), "Object distance calculated!", Toast.LENGTH_SHORT);
toast.show();
txt1.setText(test);
}
});
height.setOnClickListener(new View.OnClickListener()
{
@Override
public void onClick(View v)
{
AngleB=0;
while(AngleB==0)
{
AngleB = getDirection();//taking x
}
H = Double.valueOf(ThreeDForm.format(h+Math.abs(D*Math.tan((AngleB)))));
test = "Results:\nObj Distance = "+D+"\nObj Height = "+H+"\nObj Length = "+L+"\nCam height = "+h+"\n"+units[unit];
toast = Toast.makeText(getApplicationContext(), "Object height calculated!", Toast.LENGTH_SHORT);
toast.show();
txt1.setText(test);
}
});
rst_valider.setOnClickListener(new View.OnClickListener()
{
public void onClick(View view)
{
AngleA = 0.0;
AngleB = 0.0;
X1 = 0.0;
X2 = 0.0;
D=0.0;
H=0.0;
L=0.0;
toast = Toast.makeText(getApplicationContext(), "Values reset!", Toast.LENGTH_SHORT);
toast.show();
txt1.setText("Results\nObj Distance = "+D+"\nObj Height = "+H+"\nObj Length = "+L+"\nCam height = "+h+"\n"+units[unit]);
}
});
adjh.setOnClickListener(new View.OnClickListener()
{
public void onClick(View view)
{
h = Double.parseDouble(edit.getText().toString());
if(h==0)
{
toast = Toast.makeText(getApplicationContext(), "Height must be more than 0!", Toast.LENGTH_SHORT);
toast.show();
}
else
{
txt1.setText("Camera height = "+h+"\n"+units[unit]);
distance.setEnabled(true);
height.setEnabled(true);
length.setEnabled(true);
toast = Toast.makeText(getApplicationContext(), "Phone height adjusted!", Toast.LENGTH_SHORT);
toast.show();
}
}
});
length.setOnClickListener(new View.OnClickListener()
{
@Override
public void onClick(View v)
{
// TODO Auto-generated method stub
if(X1==0.0)
{
X1 = value[0];//taking z
}
else
{
X2 = (value[0]);//taking z
float theta = (float) Math.abs(Math.abs(X1)-Math.abs(X2));
//arc of a circle logic;
L = Double.valueOf(ThreeDForm.format(theta * D));
test = "Results:\nObj Distance = "+D+"\nObj Height = "+H+"\nObj Length = "+L+"\nCam height = "+h+"\n"+units[unit];
toast = Toast.makeText(getApplicationContext(), "Object length calculated!", Toast.LENGTH_SHORT);
toast.show();
txt1.setText(test);
}
}
});
}
public void addListenerOnSpinnerItemSelection()
{
spinner = (Spinner) findViewById(R.id.spinner1);
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this,R.array.units_array, android.R.layout.simple_spinner_item);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(adapter);
spinner.setOnItemSelectedListener(new CustomOnItemSelectedListener()
{
public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2, long arg3)
{
// TODO Auto-generated method stub
Toast.makeText(arg0.getContext(), "Unit selected : " + arg0.getItemAtPosition(arg2).toString(),Toast.LENGTH_SHORT).show();
if(arg2==0)
{
//convert to mts
if(unit==1)
{//cm-m
h = Double.valueOf(ThreeDForm.format(h*0.01));
H = Double.valueOf(ThreeDForm.format(H*0.01));
D = Double.valueOf(ThreeDForm.format(D*0.01));
L = Double.valueOf(ThreeDForm.format(L*0.01));
}
else if(unit==2)
{//ft-m
h = Double.valueOf(ThreeDForm.format(h*.3048));
H = Double.valueOf(ThreeDForm.format(H*.3048));
D = Double.valueOf(ThreeDForm.format(D*.3048));
L = Double.valueOf(ThreeDForm.format(L*.3048));
}
else if(unit==3)
{//in-m
h = Double.valueOf(ThreeDForm.format(h*.0254));
H = Double.valueOf(ThreeDForm.format(H*.0254));
D = Double.valueOf(ThreeDForm.format(D*.0254));
L = Double.valueOf(ThreeDForm.format(L*.0254));
}
unit=0;
test = "Results:\nObj Distance = "+D+"\nObj Height = "+H+"\nObj Length = "+L+"\nCam height = "+h+"\n"+units[unit];
txt1.setText(test);
}
else if(arg2==1)
{//convert to cms
if(unit==0)
{//m-cm
h = Double.valueOf(ThreeDForm.format(h*100));
H = Double.valueOf(ThreeDForm.format(H*100));
D = Double.valueOf(ThreeDForm.format(D*100));
L = Double.valueOf(ThreeDForm.format(L*100));
}
else if(unit==2)
{//ft-cm
h = Double.valueOf(ThreeDForm.format(h*30.48));
H = Double.valueOf(ThreeDForm.format(H*30.48));
D = Double.valueOf(ThreeDForm.format(D*30.48));
L = Double.valueOf(ThreeDForm.format(L*30.48));
}
else if(unit==3)
{//in-cm
h = Double.valueOf(ThreeDForm.format(h*2.54));
H = Double.valueOf(ThreeDForm.format(H*2.54));
D = Double.valueOf(ThreeDForm.format(D*2.54));
L = Double.valueOf(ThreeDForm.format(L*2.54));
}
unit=1;
test = "Results:\nObj Distance = "+D+"\nObj Height = "+H+"\nLength = "+L+"\nCam height = "+h+"\n"+units[unit];
txt1.setText(test);
}
else if(arg2==2)
{//convert to feet
if(unit==0)
{//m-ft
h = Double.valueOf(ThreeDForm.format(h*3.28084));
H = Double.valueOf(ThreeDForm.format(H*3.28084));
D = Double.valueOf(ThreeDForm.format(D*3.28084));
L = Double.valueOf(ThreeDForm.format(L*3.28084));
}
else if(unit==1)
{//cm-ft
h = Double.valueOf(ThreeDForm.format(h*0.0328084));
H = Double.valueOf(ThreeDForm.format(H*0.0328084));
D = Double.valueOf(ThreeDForm.format(D*0.0328084));
L = Double.valueOf(ThreeDForm.format(L*0.0328084));
}
else if(unit==3)
{//in-ft
h = Double.valueOf(ThreeDForm.format(h*0.0833333));
H = Double.valueOf(ThreeDForm.format(H*0.0833333));
D = Double.valueOf(ThreeDForm.format(D*0.0833333));
L = Double.valueOf(ThreeDForm.format(L*0.0833333));
}
unit=2;
test = "Results:\nObj Distance = "+D+"\nObj Height = "+H+"\nObj Length = "+L+"\nCam height = "+h+"\n"+units[unit];
txt1.setText(test);
}
else
{//convert to in
if(unit==0)
{//m-in
h = Double.valueOf(ThreeDForm.format(h*39.3701));
H = Double.valueOf(ThreeDForm.format(H*39.3701));
D = Double.valueOf(ThreeDForm.format(D*39.3701));
L = Double.valueOf(ThreeDForm.format(L*39.3701));
}
else if(unit==1)
{//cm-in
h = Double.valueOf(ThreeDForm.format(h*0.393701));
H = Double.valueOf(ThreeDForm.format(H*0.393701));
D = Double.valueOf(ThreeDForm.format(D*0.393701));
L = Double.valueOf(ThreeDForm.format(L*0.393701));
}
else if(unit==2)
{//ft-in
h = Double.valueOf(ThreeDForm.format(h*12));
H = Double.valueOf(ThreeDForm.format(H*12));
D = Double.valueOf(ThreeDForm.format(D*12));
L = Double.valueOf(ThreeDForm.format(L*12));
}
unit=3;
test = "Results:\nObj Distance = "+D+"\nObj Height = "+H+"\nObj Length = "+L+"\nCam height = "+h+"\n"+units[unit];
txt1.setText(test);
}
}
public void onNothingSelected(AdapterView<?> arg0)
{
// TODO Auto-generated method stub
}
});
}
public void addListenerOnButton()
{
spinner = (Spinner) findViewById(R.id.spinner1);
}
@Override
public void onBackPressed()
{
onCreate(null);
}
@Override
public boolean onCreateOptionsMenu(android.view.Menu menu)
{
Log.d(TAG,"Menu button pressed");
getMenuInflater().inflate(R.layout.menu, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item)
{ Log.d(TAG,"selection");
switch (item.getItemId())
{
case R.id.menu_save:
Log.d(TAG,"save button");
setContentView(R.layout.save);
final EditText save_name = (EditText) findViewById(R.id.saveText1);
final Button saveButton = (Button) findViewById(R.id.savebutton1);
saveButton.setOnClickListener(new View.OnClickListener()
{
public void onClick(View view)
{
Log.d(TAG,"save button pressed");
//Log.d(TAG,"1");
//count = count+1;
//Log.d(TAG,"count"+count);
//files[count]=filename.toString();
//Log.d(TAG,"2");
try//on press of save button
{
//Log.d(TAG,"3");
Log.d(TAG,"1");
ContextWrapper contextWrapper = new ContextWrapper(getApplicationContext());
final File directory = contextWrapper.getDir(filepath, Context.MODE_APPEND);
myInternalFile = new File(directory , filename);
Log.d(TAG,"2");
BufferedWriter buf = new BufferedWriter(new FileWriter(myInternalFile, true));
buf.append(save_name.getText().toString()+" "+test);
buf.newLine();
buf.close();
Log.d(TAG,"3");
//FileOutputStream fos = new FileOutputStream(myInternalFile);
//fos.write((save_name.getText().toString()+" "+test).getBytes());
//fos.close();
//m = m + save_name.getText().toString()+" "+test+"\n";
Log.d(TAG,"written to file");
}
catch (IOException e)
{
try
{
BufferedWriter buf = new BufferedWriter(new FileWriter(myInternalFile, true));
buf.write("\n\n"+save_name.getText().toString()+" "+test);
}
catch(IOException e2)
{
e.printStackTrace();
}
}
save_name.setText("");
Toast toast = Toast.makeText(getApplicationContext(),filename+" saved to Internal Storage...",Toast.LENGTH_SHORT);
toast.show();
}
});
return true;
case R.id.menu_search:
Log.d(TAG,"view button");
setContentView(R.layout.view);
TextView viewText = (TextView) findViewById(R.id.viewtextView1);
String myData = "";
//Toast.makeText(MainActivity.this, "Search is Selected", Toast.LENGTH_SHORT).show();
try
{ Log.d(TAG,"11");
ContextWrapper contextWrapper = new ContextWrapper(getApplicationContext());
final File directory = contextWrapper.getDir(filepath, Context.MODE_APPEND);
myInternalFile = new File(directory , filename);
Log.d(TAG,"12");
FileInputStream fis = new FileInputStream(myInternalFile);
DataInputStream in = new DataInputStream(fis);
BufferedReader br = new BufferedReader(new InputStreamReader(in));
Log.d(TAG,"13");
String strLine;
while ((strLine=br.readLine()) != null)
{
myData = myData + "\n" + strLine;
}
in.close();
}
catch (IOException e)
{
e.printStackTrace();
}
viewText.setText(myData);
Toast toast1 = Toast.makeText(this,"Data retrieved from Internal Storage...",Toast.LENGTH_SHORT);
toast1.show();
return true;
case R.id.menu_delete:
setContentView(R.layout.view);
viewText = (TextView) findViewById(R.id.viewtextView1);
try
{
PrintWriter writer = new PrintWriter(myInternalFile);
writer.print("Measurements:\n");
writer.close();
Toast toast2 = Toast.makeText(this,"Data deleted.",Toast.LENGTH_SHORT);
toast2.show();
viewText.setText("");
}
catch(IOException e)
{
e.printStackTrace();
}
return true;
default:
return super.onOptionsItemSelected(item);
}
}
@Override
protected void onRestoreInstanceState(Bundle savedInstanceState)
{
super.onRestoreInstanceState(savedInstanceState);
}
@Override
protected void onResume()
{
try
{
Log.v("On resume called","------ wl aquire next!");
wl.acquire();
}
catch(Exception ex)
{
}
Log.e(getClass().getSimpleName(), "onResume");
super.onResume();
//
mSensorManager.registerListener(this, mAccelerometer, SensorManager.SENSOR_DELAY_UI);
mSensorManager.registerListener(this, mMagnetometer, SensorManager.SENSOR_DELAY_UI);
//
}
@Override
protected void onSaveInstanceState(Bundle outState)
{
super.onSaveInstanceState(outState);
}
@Override
protected void onPause()
{
try
{
Log.v("on pause called", "on pause called");
wl.release();
}
catch(Exception ex)
{
Log.e("Exception in on menu", "exception on menu");
}
super.onPause();
mSensorManager.unregisterListener(this);
}
/*@Override
protected void onStop()
{
Log.e(getClass().getSimpleName(), "onStop");
super.onStop();
//
mSensorManager.unregisterListener(this);
//
}*/
@Override
protected void onUserLeaveHint()
{
try
{
Log.v("on user leave hint pressed", "on userlevve hint pressesd");
wl.release();
}
catch(Exception ex)
{
Log.e("Exception in on menu", "exception on menu");
}
super.onUserLeaveHint();
}
public void surfaceCreated(SurfaceHolder holder)
{
Log.e(getClass().getSimpleName(), "surfaceCreated");
camera = Camera.open();
//camera.setFocusMode(FOCUS_MODE_CONTINUOUS_PICTURE);
//Camera.Parameters.FOCUS_MODE_CONTINUOUS_VIDEO = camera.setFocusMode();
Camera.Parameters parameters = camera.getParameters();
float[] distances = new float[3];
parameters.getFocusDistances(distances);
}
public void surfaceChanged(SurfaceHolder holder, int format, int w, int h)
{
Log.e(getClass().getSimpleName(), "surfaceChanged");
if (isPreviewRunning)
{
camera.stopPreview();
}
Camera.Parameters p = camera.getParameters();
//String focusMode = null;
//focusMode = findSettableValue(p.getSupportedFocusModes(),Camera.Parameters.FOCUS_MODE_MACRO,"edof");
p.setPreviewSize(w, h);
camera.setParameters(p);
try
{
camera.setPreviewDisplay(holder);
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
camera.startPreview();
isPreviewRunning = true;
}
/*private static String findSettableValue(Collection<String> supportedValues,String... desiredValues)
{
Log.i(TAG, "Supported values: " + supportedValues);
String result = null;
if (supportedValues != null)
{
for (String desiredValue : desiredValues)
{
if (supportedValues.contains(desiredValue))
{
result = desiredValue;
break;
}
}
}
Log.i(TAG, "Settable value: " + result);
return result;
}*/
public void surfaceDestroyed(SurfaceHolder holder)
{
Log.e(getClass().getSimpleName(), "surfaceDestroyed");
camera.stopPreview();
isPreviewRunning = false;
camera.release();
}
//
public void onSensorChanged(SensorEvent event)
{
switch(event.sensor.getType())
{
case Sensor.TYPE_ACCELEROMETER:
mGravity = event.values.clone();
//onAccelerometerChanged(values[0],values[1],values[2]);
break;
case Sensor.TYPE_MAGNETIC_FIELD:
mMagnetic = event.values.clone();
break;
case Sensor.TYPE_PRESSURE:
pressure = event.values[0];
pressure = pressure*100;
default:
return;
}
if(mGravity != null && mMagnetic != null)
{
getDirection();
}
}
public void onAccuracyChanged(Sensor sensor, int accuracy)
{
// TODO Auto-generated method stub
}
private float getDirection()
{
float[] temp = new float[9];
float[] R = new float[9];
//Load rotation matrix into R
SensorManager.getRotationMatrix(temp, null, mGravity, mMagnetic);
//Remap to camera's point-of-view
SensorManager.remapCoordinateSystem(temp, SensorManager.AXIS_X, SensorManager.AXIS_Z, R);
//Return the orientation values
SensorManager.getOrientation(R, value);
//value[0] - Z, value[1]-X, value[2]-Y in radians
return value[1]; //return x
}
}
