در این مقاله قصد داریم با استفاده از دوربین جلوی گوشی که آن را فعال کرده ایم یک عکس گرفته و بعد با زدن دکمه عکس مربوطه ذخیره شود و آن را در یک پوشه ای ذخیره کرده و بعد بتوانید آن را ببینید.

در لایه ی layout آن از یک دکمه برای گرفتن عکس استفاده می کنیم

در پوشه ی drawble باید آیکون موردنظر خود را قرار دهید

حالا در کلاس جاوا قطعه کد زیر را بنویسید:

import anywheresoftware.b4a.B4AMenuItem;
import android.app.Activity;
import android.os.Bundle;
import anywheresoftware.b4a.BA;
import anywheresoftware.b4a.BALayout;
import anywheresoftware.b4a.B4AActivity;
import anywheresoftware.b4a.ObjectWrapper;
import anywheresoftware.b4a.objects.ActivityWrapper;
import java.lang.reflect.InvocationTargetException;
import anywheresoftware.b4a.B4AUncaughtException;
import anywheresoftware.b4a.debug.*;
import java.lang.ref.WeakReference;

public class main extends Activity implements B4AActivity{
	public static main mostCurrent;
	static boolean afterFirstLayout;
	static boolean isFirst = true;
    private static boolean processGlobalsRun = false;
	BALayout layout;
	public static BA processBA;
	BA activityBA;
    ActivityWrapper _activity;
    java.util.ArrayList<B4AMenuItem> menuItems;
	public static final boolean fullScreen = false;
	public static final boolean includeTitle = true;
    public static WeakReference<Activity> previousOne;

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		if (isFirst) {
			processBA = new BA(this.getApplicationContext(), null, null, "vb.front.camera", "vb.front.camera.main");
			processBA.loadHtSubs(this.getClass());
	        float deviceScale = getApplicationContext().getResources().getDisplayMetrics().density;
	        BALayout.setDeviceScale(deviceScale);
            
		}
		else if (previousOne != null) {
			Activity p = previousOne.get();
			if (p != null && p != this) {
                BA.LogInfo("Killing previous instance (main).");
				p.finish();
			}
		}
		if (!includeTitle) {
        	this.getWindow().requestFeature(android.view.Window.FEATURE_NO_TITLE);
        }
        if (fullScreen) {
        	getWindow().setFlags(android.view.WindowManager.LayoutParams.FLAG_FULLSCREEN,   
        			android.view.WindowManager.LayoutParams.FLAG_FULLSCREEN);
        }
		mostCurrent = this;
        processBA.sharedProcessBA.activityBA = null;
		layout = new BALayout(this);
		setContentView(layout);
		afterFirstLayout = false;
		BA.handler.postDelayed(new WaitForLayout(), 5);

	}
	private static class WaitForLayout implements Runnable {
		public void run() {
			if (afterFirstLayout)
				return;
			if (mostCurrent == null)
				return;
            
			if (mostCurrent.layout.getWidth() == 0) {
				BA.handler.postDelayed(this, 5);
				return;
			}
			mostCurrent.layout.getLayoutParams().height = mostCurrent.layout.getHeight();
			mostCurrent.layout.getLayoutParams().width = mostCurrent.layout.getWidth();
			afterFirstLayout = true;
			mostCurrent.afterFirstLayout();
		}
	}
	private void afterFirstLayout() {
        if (this != mostCurrent)
			return;
		activityBA = new BA(this, layout, processBA, "vb.front.camera", "vb.front.camera.main");
        
        processBA.sharedProcessBA.activityBA = new java.lang.ref.WeakReference<BA>(activityBA);
        anywheresoftware.b4a.objects.ViewWrapper.lastId = 0;
        _activity = new ActivityWrapper(activityBA, "activity");
        anywheresoftware.b4a.Msgbox.isDismissing = false;
        if (BA.shellMode) {
			if (isFirst)
				processBA.raiseEvent2(null, true, "SHELL", false);
			processBA.raiseEvent2(null, true, "CREATE", true, "vb.front.camera.main", processBA, activityBA, _activity, anywheresoftware.b4a.keywords.Common.Density);
			_activity.reinitializeForShell(activityBA, "activity");
		}
        initializeProcessGlobals();		
        initializeGlobals();
        
        BA.LogInfo("** Activity (main) Create, isFirst = " + isFirst + " **");
        processBA.raiseEvent2(null, true, "activity_create", false, isFirst);
		isFirst = false;
		if (this != mostCurrent)
			return;
        processBA.setActivityPaused(false);
        BA.LogInfo("** Activity (main) Resume **");
        processBA.raiseEvent(null, "activity_resume");
        if (android.os.Build.VERSION.SDK_INT >= 11) {
			try {
				android.app.Activity.class.getMethod("invalidateOptionsMenu").invoke(this,(Object[]) null);
			} catch (Exception e) {
				e.printStackTrace();
			}
		}

	}
	public void addMenuItem(B4AMenuItem item) {
		if (menuItems == null)
			menuItems = new java.util.ArrayList<B4AMenuItem>();
		menuItems.add(item);
	}
	@Override
	public boolean onCreateOptionsMenu(android.view.Menu menu) {
		super.onCreateOptionsMenu(menu);
		if (menuItems == null)
			return false;
		for (B4AMenuItem bmi : menuItems) {
			android.view.MenuItem mi = menu.add(bmi.title);
			if (bmi.drawable != null)
				mi.setIcon(bmi.drawable);
            if (android.os.Build.VERSION.SDK_INT >= 11) {
				try {
                    if (bmi.addToBar) {
				        android.view.MenuItem.class.getMethod("setShowAsAction", int.class).invoke(mi, 1);
                    }
				} catch (Exception e) {
					e.printStackTrace();
				}
			}
			mi.setOnMenuItemClickListener(new B4AMenuItemsClickListener(bmi.eventName.toLowerCase(BA.cul)));
		}
		return true;
	}
    public void onWindowFocusChanged(boolean hasFocus) {
       super.onWindowFocusChanged(hasFocus);
       if (processBA.subExists("activity_windowfocuschanged"))
           processBA.raiseEvent2(null, true, "activity_windowfocuschanged", false, hasFocus);
    }
	private class B4AMenuItemsClickListener implements android.view.MenuItem.OnMenuItemClickListener {
		private final String eventName;
		public B4AMenuItemsClickListener(String eventName) {
			this.eventName = eventName;
		}
		public boolean onMenuItemClick(android.view.MenuItem item) {
			processBA.raiseEvent(item.getTitle(), eventName + "_click");
			return true;
		}
	}
    public static Class<?> getObject() {
		return main.class;
	}
    private Boolean onKeySubExist = null;
    private Boolean onKeyUpSubExist = null;
	@Override
	public boolean onKeyDown(int keyCode, android.view.KeyEvent event) {
		if (onKeySubExist == null)
			onKeySubExist = processBA.subExists("activity_keypress");
		if (onKeySubExist) {
			if (keyCode == anywheresoftware.b4a.keywords.constants.KeyCodes.KEYCODE_BACK &&
					android.os.Build.VERSION.SDK_INT >= 18) {
				HandleKeyDelayed hk = new HandleKeyDelayed();
				hk.kc = keyCode;
				BA.handler.post(hk);
				return true;
			}
			else {
				boolean res = new HandleKeyDelayed().runDirectly(keyCode);
				if (res)
					return true;
			}
		}
		return super.onKeyDown(keyCode, event);
	}
	private class HandleKeyDelayed implements Runnable {
		int kc;
		public void run() {
			runDirectly(kc);
		}
		public boolean runDirectly(int keyCode) {
			Boolean res =  (Boolean)processBA.raiseEvent2(_activity, false, "activity_keypress", false, keyCode);
			if (res == null || res == true) {
                return true;
            }
            else if (keyCode == anywheresoftware.b4a.keywords.constants.KeyCodes.KEYCODE_BACK) {
				finish();
				return true;
			}
            return false;
		}
		
	}
    @Override
	public boolean onKeyUp(int keyCode, android.view.KeyEvent event) {
		if (onKeyUpSubExist == null)
			onKeyUpSubExist = processBA.subExists("activity_keyup");
		if (onKeyUpSubExist) {
			Boolean res =  (Boolean)processBA.raiseEvent2(_activity, false, "activity_keyup", false, keyCode);
			if (res == null || res == true)
				return true;
		}
		return super.onKeyUp(keyCode, event);
	}
	@Override
	public void onNewIntent(android.content.Intent intent) {
		this.setIntent(intent);
	}
    @Override 
	public void onPause() {
		super.onPause();
        if (_activity == null) //workaround for emulator bug (Issue 2423)
            return;
		anywheresoftware.b4a.Msgbox.dismiss(true);
        BA.LogInfo("** Activity (main) Pause, UserClosed = " + activityBA.activity.isFinishing() + " **");
        processBA.raiseEvent2(_activity, true, "activity_pause", false, activityBA.activity.isFinishing());		
        processBA.setActivityPaused(true);
        mostCurrent = null;
        if (!activityBA.activity.isFinishing())
			previousOne = new WeakReference<Activity>(this);
        anywheresoftware.b4a.Msgbox.isDismissing = false;
	}

	@Override
	public void onDestroy() {
        super.onDestroy();
		previousOne = null;
	}
    @Override 
	public void onResume() {
		super.onResume();
        mostCurrent = this;
        anywheresoftware.b4a.Msgbox.isDismissing = false;
        if (activityBA != null) { //will be null during activity create (which waits for AfterLayout).
        	ResumeMessage rm = new ResumeMessage(mostCurrent);
        	BA.handler.post(rm);
        }
	}
    private static class ResumeMessage implements Runnable {
    	private final WeakReference<Activity> activity;
    	public ResumeMessage(Activity activity) {
    		this.activity = new WeakReference<Activity>(activity);
    	}
		public void run() {
			if (mostCurrent == null || mostCurrent != activity.get())
				return;
			processBA.setActivityPaused(false);
            BA.LogInfo("** Activity (main) Resume **");
		    processBA.raiseEvent(mostCurrent._activity, "activity_resume", (Object[])null);
		}
    }
	@Override
	protected void onActivityResult(int requestCode, int resultCode,
	      android.content.Intent data) {
		processBA.onActivityResult(requestCode, resultCode, data);
	}
	private static void initializeGlobals() {
		processBA.raiseEvent2(null, true, "globals", false, (Object[])null);
	}

public anywheresoftware.b4a.keywords.Common __c = null;
public vb.front.cam.fronty _fc = null;
public anywheresoftware.b4a.objects.ButtonWrapper _button1 = null;
public anywheresoftware.b4a.objects.PanelWrapper _panel1 = null;
public anywheresoftware.b4a.phone.Phone _p = null;

public static boolean isAnyActivityVisible() {
    boolean vis = false;
vis = vis | (main.mostCurrent != null);
return vis;}
public static String  _activity_create(boolean _firsttime) throws Exception{
 //BA.debugLineNum = 29;BA.debugLine="Sub Activity_Create(FirstTime As Boolean)";
 //BA.debugLineNum = 32;BA.debugLine="Activity.LoadLayout(\"1\")";
mostCurrent._activity.LoadLayout("1",mostCurrent.activityBA);
 //BA.debugLineNum = 34;BA.debugLine="Panel1.Top = 0";
mostCurrent._panel1.setTop((int) (0));
 //BA.debugLineNum = 35;BA.debugLine="Panel1.Left = 0";
mostCurrent._panel1.setLeft((int) (0));
 //BA.debugLineNum = 36;BA.debugLine="Panel1.Height = 400dip";
mostCurrent._panel1.setHeight(anywheresoftware.b4a.keywords.Common.DipToCurrent((int) (400)));
 //BA.debugLineNum = 37;BA.debugLine="Panel1.Width= 400dip";
mostCurrent._panel1.setWidth(anywheresoftware.b4a.keywords.Common.DipToCurrent((int) (400)));
 //BA.debugLineNum = 40;BA.debugLine="button1.Width=150";
mostCurrent._button1.setWidth((int) (150));
 //BA.debugLineNum = 41;BA.debugLine="button1.Height=150";
mostCurrent._button1.setHeight((int) (150));
 //BA.debugLineNum = 44;BA.debugLine="button1.Top = Activity.height - button1.width";
mostCurrent._button1.setTop((int) (mostCurrent._activity.getHeight()-mostCurrent._button1.getWidth()));
 //BA.debugLineNum = 45;BA.debugLine="button1.Left= Activity.Width - button1.width";
mostCurrent._button1.setLeft((int) (mostCurrent._activity.getWidth()-mostCurrent._button1.getWidth()));
 //BA.debugLineNum = 47;BA.debugLine="button1.Text=\"Capture\"";
mostCurrent._button1.setText((Object)("Capture"));
 //BA.debugLineNum = 49;BA.debugLine="FC.Initialize(Panel1,\"FC\")";
mostCurrent._fc.Initialize(mostCurrent.activityBA,(android.view.ViewGroup)(mostCurrent._panel1.getObject()),"FC");
 //BA.debugLineNum = 53;BA.debugLine="Panel1.Invalidate";
mostCurrent._panel1.Invalidate();
 //BA.debugLineNum = 54;BA.debugLine="Activity.Invalidate";
mostCurrent._activity.Invalidate();
 //BA.debugLineNum = 56;BA.debugLine="button1.BringToFront";
mostCurrent._button1.BringToFront();
 //BA.debugLineNum = 57;BA.debugLine="Panel1.SendToBack";
mostCurrent._panel1.SendToBack();
 //BA.debugLineNum = 61;BA.debugLine="End Sub";
return "";
}
public static String  _activity_pause(boolean _userclosed) throws Exception{
 //BA.debugLineNum = 102;BA.debugLine="Sub Activity_Pause (UserClosed As Boolean)";
 //BA.debugLineNum = 104;BA.debugLine="Try";
try { //BA.debugLineNum = 105;BA.debugLine="FC.StopPreview";
mostCurrent._fc.StopPreview();
 } 
       catch (Exception e48) {
			processBA.setLastException(e48); };
 //BA.debugLineNum = 109;BA.debugLine="Try";
try { //BA.debugLineNum = 110;BA.debugLine="FC.Release";
mostCurrent._fc.Release();
 } 
       catch (Exception e52) {
			processBA.setLastException(e52); };
 //BA.debugLineNum = 114;BA.debugLine="End Sub";
return "";
}
public static String  _activity_resume() throws Exception{
 //BA.debugLineNum = 95;BA.debugLine="Sub Activity_Resume";
 //BA.debugLineNum = 97;BA.debugLine="Msgbox(\"Front Camera Application\" ,\"Bermz ISware Software Solutions\")";
anywheresoftware.b4a.keywords.Common.Msgbox("Front Camera Application","Bermz ISware Software Solutions",mostCurrent.activityBA);
 //BA.debugLineNum = 100;BA.debugLine="End Sub";
return "";
}
public static String  _button1_click() throws Exception{
 //BA.debugLineNum = 149;BA.debugLine="Sub button1_click";
 //BA.debugLineNum = 151;BA.debugLine="Try";
try { //BA.debugLineNum = 152;BA.debugLine="FC.TakePicture";
mostCurrent._fc.TakePicture();
 } 
       catch (Exception e76) {
			processBA.setLastException(e76); //BA.debugLineNum = 154;BA.debugLine="Msgbox(\"Camera not working? Reboot phone possibly?\",\"INFO\")";
anywheresoftware.b4a.keywords.Common.Msgbox("Camera not working? Reboot phone possibly?","INFO",mostCurrent.activityBA);
 //BA.debugLineNum = 155;BA.debugLine="Msgbox(\"  OS\", p.SdkVersion)";
anywheresoftware.b4a.keywords.Common.Msgbox("  OS",BA.NumberToString(mostCurrent._p.getSdkVersion()),mostCurrent.activityBA);
 //BA.debugLineNum = 158;BA.debugLine="If p.SdkVersion >1 AND p.SdkVersion < 9 Then";
if (mostCurrent._p.getSdkVersion()>1 && mostCurrent._p.getSdkVersion()<9) { 
 //BA.debugLineNum = 160;BA.debugLine="Msgbox(\"Starting Older Front Cam OS\", \"Android OS Version: \" & p.SdkVersion)";
anywheresoftware.b4a.keywords.Common.Msgbox("Starting Older Front Cam OS","Android OS Version: "+BA.NumberToString(mostCurrent._p.getSdkVersion()),mostCurrent.activityBA);
 //BA.debugLineNum = 161;BA.debugLine="FC.Older2b";
mostCurrent._fc.Older2b();
 //BA.debugLineNum = 162;BA.debugLine="FC.StartPreview";
mostCurrent._fc.StartPreview();
 //BA.debugLineNum = 163;BA.debugLine="Panel1.Invalidate";
mostCurrent._panel1.Invalidate();
 //BA.debugLineNum = 164;BA.debugLine="Activity.Invalidate";
mostCurrent._activity.Invalidate();
 };
 };
 //BA.debugLineNum = 168;BA.debugLine="End Sub";
return "";
}
public static String  _fc_picturetaken(byte[] _data) throws Exception{
anywheresoftware.b4a.objects.streams.File.OutputStreamWrapper _out = null;
int _myr = 0;
anywheresoftware.b4a.objects.IntentWrapper _i = null;
 //BA.debugLineNum = 116;BA.debugLine="Sub fc_PictureTaken (Data() As Byte)";
 //BA.debugLineNum = 120;BA.debugLine="Try";
try { //BA.debugLineNum = 121;BA.debugLine="File.MakeDir(File.DirRootExternal, \"DCIM/FrontCam\")";
anywheresoftware.b4a.keywords.Common.File.MakeDir(anywheresoftware.b4a.keywords.Common.File.getDirRootExternal(),"DCIM/FrontCam");
 } 
       catch (Exception e58) {
			processBA.setLastException(e58); };
 //BA.debugLineNum = 128;BA.debugLine="Dim out As OutputStream";
_out = new anywheresoftware.b4a.objects.streams.File.OutputStreamWrapper();
 //BA.debugLineNum = 129;BA.debugLine="Dim myr As Int";
_myr = 0;
 //BA.debugLineNum = 130;BA.debugLine="myr = Rnd(111,33333)";
_myr = anywheresoftware.b4a.keywords.Common.Rnd((int) (111),(int) (33333));
 //BA.debugLineNum = 131;BA.debugLine="out = File.OpenOutput(File.DirRootExternal, \"DCIM/FrontCam/A\" & myr & \".jpg\", False)";
_out = anywheresoftware.b4a.keywords.Common.File.OpenOutput(anywheresoftware.b4a.keywords.Common.File.getDirRootExternal(),"DCIM/FrontCam/A"+BA.NumberToString(_myr)+".jpg",anywheresoftware.b4a.keywords.Common.False);
 //BA.debugLineNum = 132;BA.debugLine="out.WriteBytes(Data, 0, Data.Length)";
_out.WriteBytes(_data,(int) (0),_data.length);
 //BA.debugLineNum = 133;BA.debugLine="out.Close";
_out.Close();
 //BA.debugLineNum = 135;BA.debugLine="ToastMessageShow(\"Image saved: \" & File.Combine(File.DirRootExternal, \"DCIM/FrontCam/A\" & myr & \".jpg\"), True)";
anywheresoftware.b4a.keywords.Common.ToastMessageShow("Image saved: "+anywheresoftware.b4a.keywords.Common.File.Combine(anywheresoftware.b4a.keywords.Common.File.getDirRootExternal(),"DCIM/FrontCam/A"+BA.NumberToString(_myr)+".jpg"),anywheresoftware.b4a.keywords.Common.True);
 //BA.debugLineNum = 137;BA.debugLine="FC.StartPreview";
mostCurrent._fc.StartPreview();
 //BA.debugLineNum = 140;BA.debugLine="Dim I As Intent";
_i = new anywheresoftware.b4a.objects.IntentWrapper();
 //BA.debugLineNum = 141;BA.debugLine="I.Initialize(\"android.intent.action.MEDIA_SCANNER_SCAN_FILE\", _         \"file://\" & File.Combine(File.DirRootExternal, \"DCIM/FrontCam/A\" & myr & \".jpg\"))";
_i.Initialize("android.intent.action.MEDIA_SCANNER_SCAN_FILE","file://"+anywheresoftware.b4a.keywords.Common.File.Combine(anywheresoftware.b4a.keywords.Common.File.getDirRootExternal(),"DCIM/FrontCam/A"+BA.NumberToString(_myr)+".jpg"));
 //BA.debugLineNum = 143;BA.debugLine="Dim p As Phone";
mostCurrent._p = new anywheresoftware.b4a.phone.Phone();
 //BA.debugLineNum = 144;BA.debugLine="p.SendBroadcastIntent(I)";
mostCurrent._p.SendBroadcastIntent((android.content.Intent)(_i.getObject()));
 //BA.debugLineNum = 146;BA.debugLine="End Sub";
return "";
}
public static String  _fc_ready(boolean _success) throws Exception{
 //BA.debugLineNum = 66;BA.debugLine="Sub fc_Ready (Success As Boolean)";
 //BA.debugLineNum = 71;BA.debugLine="Try";
try { //BA.debugLineNum = 72;BA.debugLine="FC.StartPreview";
mostCurrent._fc.StartPreview();
 } 
       catch (Exception e29) {
			processBA.setLastException(e29); //BA.debugLineNum = 74;BA.debugLine="Msgbox(\"FRONT Camera not working?\",\"INFO\")";
anywheresoftware.b4a.keywords.Common.Msgbox("FRONT Camera not working?","INFO",mostCurrent.activityBA);
 //BA.debugLineNum = 76;BA.debugLine="If p.SdkVersion >1 AND p.SdkVersion < 9 Then";
if (mostCurrent._p.getSdkVersion()>1 && mostCurrent._p.getSdkVersion()<9) { 
 //BA.debugLineNum = 78;BA.debugLine="Msgbox(\"Starting Older Front Cam OS\", p.SdkVersion)";
anywheresoftware.b4a.keywords.Common.Msgbox("Starting Older Front Cam OS",BA.NumberToString(mostCurrent._p.getSdkVersion()),mostCurrent.activityBA);
 //BA.debugLineNum = 79;BA.debugLine="FC.Older2b";
mostCurrent._fc.Older2b();
 //BA.debugLineNum = 80;BA.debugLine="FC.StartPreview";
mostCurrent._fc.StartPreview();
 //BA.debugLineNum = 81;BA.debugLine="Panel1.Invalidate";
mostCurrent._panel1.Invalidate();
 //BA.debugLineNum = 82;BA.debugLine="Activity.Invalidate";
mostCurrent._activity.Invalidate();
 };
 };
 //BA.debugLineNum = 88;BA.debugLine="button1.Initialize(\"button1\")";
mostCurrent._button1.Initialize(mostCurrent.activityBA,"button1");
 //BA.debugLineNum = 89;BA.debugLine="button1.BringToFront";
mostCurrent._button1.BringToFront();
 //BA.debugLineNum = 92;BA.debugLine="End Sub";
return "";
}

public static void initializeProcessGlobals() {
    
    if (main.processGlobalsRun == false) {
	    main.processGlobalsRun = true;
		try {
		        main._process_globals();
		
        } catch (Exception e) {
			throw new RuntimeException(e);
		}
    }
}public static String  _globals() throws Exception{
 //BA.debugLineNum = 17;BA.debugLine="Sub Globals";
 //BA.debugLineNum = 20;BA.debugLine="Dim FC As CameraFront";
mostCurrent._fc = new vb.front.cam.fronty();
 //BA.debugLineNum = 21;BA.debugLine="Dim button1 As Button";
mostCurrent._button1 = new anywheresoftware.b4a.objects.ButtonWrapper();
 //BA.debugLineNum = 22;BA.debugLine="Dim Panel1 As Panel";
mostCurrent._panel1 = new anywheresoftware.b4a.objects.PanelWrapper();
 //BA.debugLineNum = 24;BA.debugLine="Dim p As Phone";
mostCurrent._p = new anywheresoftware.b4a.phone.Phone();
 //BA.debugLineNum = 26;BA.debugLine="End Sub";
return "";
}
public static String  _process_globals() throws Exception{
 //BA.debugLineNum = 12;BA.debugLine="Sub Process_Globals";
 //BA.debugLineNum = 15;BA.debugLine="End Sub";
return "";
}
}

برای اینکه عکس مورد نظر در پوشه ذخیره شود و همین طور شما مجوز دسترسی به دوربین جلوی گوشی را داشته باشید داخل فایل android manifest قطعه کد زیر را اضافه نمایید.

	<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
	<uses-permission android:name="android.permission.CAMERA"/>

خروجی به صورت زیر خواهد بود: