android - How can i rotate,zoom and scale multiple Imageview on camera surfaceview -
i using http://judepereira.com/blog/multi-touch-in-android-translate-scale-and-rotate/ link code useful imageview,i want multiple imageview @ time
>package logicstree.selfitextcom; import java.io.filenotfoundexception; import java.io.fileoutputstream; import java.io.ioexception; import java.util.arraylist; import android.app.activity; import android.app.dialog; import android.graphics.bitmap; import android.graphics.bitmap.config; import android.graphics.canvas; import android.graphics.color; import android.graphics.matrix; import android.graphics.paint; import android.graphics.pointf; import android.hardware.camera; import android.hardware.camera.picturecallback; import android.hardware.camera.shuttercallback; import android.os.bundle; import android.text.layout.alignment; import android.text.staticlayout; import android.text.textpaint; import android.util.floatmath; import android.util.log; import android.view.motionevent; import android.view.surfaceholder; import android.view.surfaceview; import android.view.view; import android.view.view.onclicklistener; import android.view.view.ontouchlistener; import android.view.viewgroup; import android.widget.button; import android.widget.edittext; import android.widget.imageview; import android.widget.imageview.scaletype; import android.widget.relativelayout; import android.widget.relativelayout.layoutparams; import android.widget.textview; import android.widget.toast; import com.capricorn.raymenu; public class mainactivitysurfaceview extends activity implements surfaceholder.callback,ontouchlistener { textview testview; camera camera; surfaceview surfaceview; surfaceholder surfaceholder; picturecallback rawcallback; shuttercallback shuttercallback; picturecallback jpegcallback; /* drop drag textview */ imageview textimage[] = new imageview[3]; viewgroup _root; int _xdelta; int _ydelta; // textview pinch zoom final static float step = 200; float mratio = 1.0f; int mbasedist; float mbaseratio; float fontsize = 13; private static final string tag = "touch"; private static final float min_zoom = 1f, max_zoom = 1f; matrix matrix = new matrix(); matrix savedmatrix = new matrix(); static final int none = 0; static final int drag = 1; static final int zoom = 2; int mode = none; pointf start = new pointf(); pointf mid = new pointf(); float olddist = 1f; private static final int[] item_drawables = { r.drawable.ic_launcher, r.drawable.ic_launcher, r.drawable.ic_launcher, r.drawable.ic_launcher, r.drawable.ic_launcher }; /*new */ public float[] lastevent = null; private float d = 0f; private float newrot = 0f; public static int countertext = 0; dialog dialogtext; relativelayout.layoutparams layoutparams; arraylist<imageview> imagetext; /** called when activity first created. */ @suppresswarnings("deprecation") @override public void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.activity_main); _root = (viewgroup) findviewbyid(r.id.relativcapture); layoutparams = new relativelayout.layoutparams(layoutparams.fill_parent, layoutparams.fill_parent); imagetext = new arraylist<imageview>(); surfaceview = (surfaceview) findviewbyid(r.id.surfaceview); surfaceholder = surfaceview.getholder(); surfaceholder.addcallback(this); // deprecated setting, required on android versions prior 3.0 surfaceholder.settype(surfaceholder.surface_type_push_buffers); jpegcallback = new picturecallback() { public void onpicturetaken(byte[] data, camera camera) { fileoutputstream outstream = null; try { outstream = new fileoutputstream(string.format( "/sdcard/%d.jpg", system.currenttimemillis())); outstream.write(data); outstream.close(); log.d("log", "onpicturetaken - wrote bytes: " + data.length); } catch (filenotfoundexception e) { e.printstacktrace(); } catch (ioexception e) { e.printstacktrace(); } { } toast.maketext(getapplicationcontext(), "picture saved", 2000) .show(); refreshcamera(); } }; raymenu raymenu = (raymenu) findviewbyid(r.id.ray_menu); final int itemcount = item_drawables.length; (int = 0; < itemcount; i++) { imageview item = new imageview(this); item.setimageresource(item_drawables[i]); final int position = i; raymenu.additem(item, new onclicklistener() { @override public void onclick(view v) { if(position == 0) { opendialog(); toast.maketext(mainactivitysurfaceview.this,"create text ..... :" + position, toast.length_short).show(); } else { toast.maketext(mainactivitysurfaceview.this, "position:" + position, toast.length_short).show(); } } });// add menu item } } public void captureimage(view v) throws ioexception { // take picture camera.takepicture(null, null, jpegcallback); countertext=0; } @override public void onbackpressed() { // todo auto-generated method stub countertext=0; super.onbackpressed(); } public void refreshcamera() { if (surfaceholder.getsurface() == null) { // preview surface not exist return; } // stop preview before making changes try { camera.stoppreview(); } catch (exception e) { // ignore: tried stop non-existent preview } // set preview size , make resize, rotate or // reformatting changes here // start preview new settings try { camera.setpreviewdisplay(surfaceholder); camera.startpreview(); } catch (exception e) { } } public void surfacechanged(surfaceholder holder, int format, int w, int h) { // size known, set camera parameters , begin // preview. refreshcamera(); } public void surfacecreated(surfaceholder holder) { try { // open camera camera = camera.open(); } catch (runtimeexception e) { // check exceptions system.err.println(e); return; } camera.parameters param; param = camera.getparameters(); // modify parameter param.setpreviewsize(352, 288); camera.setparameters(param); try { // surface has been created, tell camera draw // preview. camera.setpreviewdisplay(surfaceholder); camera.startpreview(); } catch (exception e) { // check exceptions system.err.println(e); return; } } public void surfacedestroyed(surfaceholder holder) { // stop preview , release camera camera.stoppreview(); camera.release(); camera = null; } public static bitmap drawtext(string text, int textwidth, int textsize) { // text dimensions textpaint textpaint = new textpaint(paint.anti_alias_flag | paint.linear_text_flag); textpaint.setstyle(paint.style.fill); textpaint.setcolor(color.white); textpaint.settextsize(textsize); staticlayout mtextlayout = new staticlayout(text, textpaint, textwidth,alignment.align_normal, 1.0f, 0.0f, false); // create bitmap , canvas draw bitmap b = bitmap.createbitmap(textwidth, mtextlayout.getheight(),config.argb_8888); canvas c = new canvas(b); // draw background paint paint = new paint(paint.anti_alias_flag | paint.linear_text_flag); paint.setcolor(color.transparent); c.drawpaint(paint); // draw text c.save(); c.translate(0, 0); mtextlayout.draw(c); c.restore(); return b; } public void opendialog() { dialogtext = new dialog(mainactivitysurfaceview.this); dialogtext.setcontentview(r.layout.dialog); dialogtext.settitle("custom dialog"); // todo auto-generated method stub toast.maketext(getapplicationcontext(), "test" + countertext++, toast.length_short).show(); /* for(final imageview image : imagetext) _root.addview(image); image.setlayoutparams(layoutparams); image.setscaletype(scaletype.matrix); image.setontouchlistener(this); */ final edittext txtedit = (edittext) dialogtext.findviewbyid(r.id.edittext1); button btnclick = (button) dialogtext.findviewbyid(r.id.btnclick); btnclick.setonclicklistener(new onclicklistener() { @override public void onclick(view v) { string name = txtedit.gettext().tostring(); int width = getwindowmanager().getdefaultdisplay().getwidth(); //int size = (int) txtedit.gettextsize() ; bitmap bmp = drawtext(name, width, 100); imageview inage= new imageview(mainactivitysurfaceview.this); inage.setimagebitmap(bmp); ++countertext; dialogtext.dismiss(); _root.addview(inage); inage.setlayoutparams(layoutparams); inage.setscaletype(scaletype.matrix); inage.setontouchlistener(mainactivitysurfaceview.this); } }); dialogtext.show(); } @override public boolean ontouch(view v, motionevent event) { imageview view = (imageview) v; switch (event.getaction() & motionevent.action_mask) { case motionevent.action_down: savedmatrix.set(matrix); start.set(event.getx(), event.gety()); mode = drag; lastevent = null; break; case motionevent.action_pointer_down: olddist = spacing(event); if (olddist > 10f) { savedmatrix.set(matrix); midpoint(mid, event); mode = zoom; } lastevent = new float[4]; lastevent[0] = event.getx(0); lastevent[1] = event.getx(1); lastevent[2] = event.gety(0); lastevent[3] = event.gety(1); d = rotation(event); break; case motionevent.action_up: case motionevent.action_pointer_up: mode = none; lastevent = null; break; case motionevent.action_move: if (mode == drag) { matrix.set(savedmatrix); float dx = event.getx() - start.x; float dy = event.gety() - start.y; matrix.posttranslate(dx, dy); } else if (mode == zoom) { float newdist = spacing(event); if (newdist > 10f) { matrix.set(savedmatrix); float scale = (newdist / olddist); /* if(scale > 1.75f) system.out.println("====== scale : " + scale); else*/ matrix.postscale(scale, scale, mid.x, mid.y); } if (lastevent != null && event.getpointercount() == 2) { newrot = rotation(event); float r = newrot - d; float[] values = new float[9]; matrix.getvalues(values); float tx = values[2]; float ty = values[5]; float sx = values[0]; float xc = (view.getwidth() / 2) * sx; float yc = (view.getheight() / 2) * sx; matrix.postrotate(r, mid.x, mid.y); } } break; } ontouchevent(event); view.setimagematrix(matrix); return true; } private float rotation(motionevent event) { // todo auto-generated method stub double delta_x = (event.getx(0) - event.getx(1)); double delta_y = (event.gety(0) - event.gety(1)); double radians = math.atan2(delta_y, delta_x); return (float) math.todegrees(radians); } private float spacing(motionevent event) { float x = event.getx(0) - event.getx(1); float y = event.gety(0) - event.gety(1); return floatmath.sqrt(x * x + y * y); } private void midpoint(pointf point, motionevent event) { float x = event.getx(0) + event.getx(1); float y = event.gety(0) + event.gety(1); point.set(x / 2, y / 2); } private void dumpevent(motionevent event) { string names[] = { "down", "up", "move", "cancel", "outside", "pointer_down", "pointer_up", "7?", "8?", "9?" }; stringbuilder sb = new stringbuilder(); int action = event.getaction(); int actioncode = action & motionevent.action_mask; sb.append("event action_").append(names[actioncode]); if (actioncode == motionevent.action_pointer_down || actioncode == motionevent.action_pointer_up) { sb.append("(pid ").append( action >> motionevent.action_pointer_id_shift); sb.append(")"); } sb.append("["); (int = 0; < event.getpointercount(); i++) { sb.append("#").append(i); sb.append("(pid ").append(event.getpointerid(i)); sb.append(")=").append((int) event.getx(i)); sb.append(",").append((int) event.gety(i)); if (i + 1 < event.getpointercount()) sb.append(";"); } sb.append("]"); log.d("touch events ---------", sb.tostring()); } @override public void ondetachedfromwindow() { // todo auto-generated method stub system.out.println("===onde"); //bm.recycle(); system.gc(); super.ondetachedfromwindow(); } } activity_main
<relativelayout android:id="@+id/relativsurface" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_above="@+id/capture" android:layout_alignparenttop="true" > <surfaceview android:id="@+id/surfaceview" android:layout_width="match_parent" android:layout_height="fill_parent" android:layout_alignparenttop="true" android:layout_below="@+id/ray_menu" android:clickable="false" > </surfaceview> <com.capricorn.raymenu android:background="@android:color/black" android:id="@+id/ray_menu" android:layout_width="fill_parent" android:layout_height="60dp" android:layout_alignparenttop="true" android:paddingleft="5dp" android:paddingright="5dp" /> <relativelayout android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_alignparentbottom="true" android:layout_below="@+id/ray_menu" android:id="@+id/relativcapture" android:layout_centerhorizontal="true" > </relativelayout> </relativelayout> <linearlayout android:id="@+id/capture" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_alignparentbottom="true" android:clickable="true" android:gravity="center" android:onclick="captureimage" android:orientation="horizontal" > <textview android:layout_width="wrap_content" android:layout_height="wrap_content" android:gravity="center" android:padding="10dp" android:text="capture" android:textappearance="?android:attr/textappearancelarge" /> </linearlayout> </relativelayout this dialog.xml
<?xml version="1.0" encoding="utf-8"?> <relativelayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="wrap_content" android:layout_height="wrap_content" > <textview android:id="@+id/textview1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignparentleft="true" android:layout_alignparenttop="true" android:layout_marginleft="24dp" android:layout_margintop="30dp" android:text="enter text" /> <edittext android:id="@+id/edittext1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignbaseline="@+id/textview1" android:layout_alignbottom="@+id/textview1" android:layout_marginleft="10dp" android:layout_torightof="@+id/textview1" android:ems="10" > <requestfocus /> </edittext> <button android:id="@+id/btnclick" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignleft="@+id/edittext1" android:layout_below="@+id/edittext1" android:layout_margintop="15dp" android:text="ok" /> </relativelayout> activity.xml
<relativelayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="fill_parent" android:layout_height="fill_parent" > <edittext android:id="@+id/edittext1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignparenttop="true" android:layout_centerhorizontal="true" android:layout_margintop="81dp" android:background="@null" android:ems="10" > </edittext> </relativelayout>
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