android - Modifying Coverflow to use xml file -
in application want modify coverflow can use xml file it. converflow follow. when changed coverflow below
converflow cf = new coverflow(this); to
coverflow cf = new coverflow(r.id.coverflowreflect); i error: 
the constructor coverflow(int) undefined
i got 3 fixes issue.
the first 1 change constructor
public coverflow(context context) { super(context); this.setstatictransformationsenabled(true); } to
public coverflow(int coverflowreflect) { super(coverflowreflect); this.setstatictransformationsenabled(true); } but got error in coverflow class saying
the constructor gallery(int) undefined.
here coverflow class:
public class coverflow extends gallery { private camera mcamera = new camera(); private int mmaxrotationangle = 0; private int mmaxzoom = -380; private int mcoveflowcenter; private boolean malphamode = true; private boolean mcirclemode = false; public coverflow(context context) { super(context); this.setstatictransformationsenabled(true); } public coverflow(context context, attributeset attrs) { super(context, attrs); this.setstatictransformationsenabled(true); } public coverflow(context context, attributeset attrs, int defstyle) { super(context, attrs, defstyle); this.setstatictransformationsenabled(true); } public int getmaxrotationangle() { return mmaxrotationangle; } public void setmaxrotationangle(int maxrotationangle) { mmaxrotationangle = maxrotationangle; } public boolean getcirclemode() { return mcirclemode; } public void setcirclemode(boolean iscircle) { mcirclemode = iscircle; } public boolean getalphamode() { return malphamode; } public void setalphamode(boolean isalpha) { malphamode = isalpha; } public int getmaxzoom() { return mmaxzoom; } public void setmaxzoom(int maxzoom) { mmaxzoom = maxzoom; } private int getcenterofcoverflow() { return (getwidth() - getpaddingleft() - getpaddingright()) / 2 + getpaddingleft(); } private static int getcenterofview(view view) { return view.getleft() + view.getwidth() / 2; } protected boolean getchildstatictransformation(view child, transformation t) { final int childcenter = getcenterofview(child); final int childwidth = child.getwidth(); int rotationangle = 0; t.clear(); t.settransformationtype(transformation.type_matrix); if (childcenter == mcoveflowcenter) { transformimagebitmap((imageview) child, t, 0); } else { rotationangle = (int) (((float) (mcoveflowcenter - childcenter) / childwidth) * mmaxrotationangle); if (math.abs(rotationangle) > mmaxrotationangle) { rotationangle = (rotationangle < 0) ? -mmaxrotationangle : mmaxrotationangle; } transformimagebitmap((imageview) child, t, rotationangle); } return true; } /** * called during layout when size of view has changed. if * added view hierarchy, you're called old * values of 0. * * @param w * current width of view. * @param h * current height of view. * @param oldw * old width of view. * @param oldh * old height of view. */ protected void onsizechanged(int w, int h, int oldw, int oldh) { mcoveflowcenter = getcenterofcoverflow(); super.onsizechanged(w, h, oldw, oldh); } /** * transform image bitmap angle passed * * @param imageview * imageview imageview bitmap want rotate * @param t * transformation * @param rotationangle * angle rotate bitmap */ private void transformimagebitmap(imageview child, transformation t, int rotationangle) { mcamera.save(); final matrix imagematrix = t.getmatrix(); final int imageheight = child.getlayoutparams().height; final int imagewidth = child.getlayoutparams().width; final int rotation = math.abs(rotationangle); mcamera.translate(0.0f, 0.0f, 100.0f); // angle of view gets less, zoom in if (rotation <= mmaxrotationangle) { float zoomamount = (float) (mmaxzoom + (rotation * 1.5)); mcamera.translate(0.0f, 0.0f, zoomamount); if (mcirclemode) { if (rotation < 40) mcamera.translate(0.0f, 155, 0.0f); else mcamera.translate(0.0f, (255 - rotation * 2.5f), 0.0f); } if (malphamode) { ((imageview) (child)).setalpha((int) (255 - rotation * 2.5)); } } mcamera.rotatey(rotationangle); mcamera.getmatrix(imagematrix); imagematrix.pretranslate(-(imagewidth ), -(imageheight / 2)); imagematrix.posttranslate((imagewidth ), (imageheight / 2)); mcamera.restore(); } } , made call activity public class coverflowactivity extends activity { /** called when activity first created. */ @override public void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.main); int pixels = (int) typedvalue.applydimension(typedvalue.complex_unit_dip, 60, getresources().getdisplaymetrics()); coverflow cf = new coverflow(this); imageadapter ia = new imageadapter(this); cf.setadapter(ia); cf.setanimationduration(1000); cf.setspacing(pixels); setcontentview(cf); } public class imageadapter extends baseadapter { private int[] mimgs = { r.drawable.img1, r.drawable.img2, r.drawable.img3, r.drawable.img4, r.drawable.img5, r.drawable.img6, r.drawable.img7, r.drawable.img8 }; context mcontext; public imageadapter(context context) { this.mcontext = context; } @override public int getcount() { return mimgs.length; } @override public object getitem(int position) { return position; } @override public long getitemid(int position) { return mimgs[position]; } @override public view getview(int position, view convertview, viewgroup parent) { reflectionimage = new reflectionimage(mcontext); i.setimageresource(mimgs[position]); i.setlayoutparams(new coverflow.layoutparams(160, 160)); i.setscaletype(imageview.scaletype.center_inside); bitmapdrawable drawable = (bitmapdrawable) i.getdrawable(); drawable.setantialias(true); return i; } public float getscale(boolean focused, int offset) { return math.max(0, 1f/(float)math.pow(2, math.abs(offset))); } } } the second option change constructor flow
public coverflow(int defstyle) { super(context, attrs, defstyle); ... again coverflow give error. the constructor overflow(int) undefined.
does go throughout same issue, mean want activity work xml layout not programmatically now. please
**update: after applying benjamin answer got following error here's log.
note: line 32: setcontentview(coverflow); **
04-18 13:22:42.812: e/androidruntime(4096): fatal exception: main 04-18 13:22:42.812: e/androidruntime(4096): java.lang.runtimeexception: unable start activity componentinfo{com.ufida.coverflow/com.ufida.coverflow.coverflowactivity}: java.lang.illegalstateexception: specified child has parent. must call removeview() on child's parent first. 04-18 13:22:42.812: e/androidruntime(4096): @ android.app.activitythread.performlaunchactivity(activitythread.java:1651) 04-18 13:22:42.812: e/androidruntime(4096): @ android.app.activitythread.handlelaunchactivity(activitythread.java:1667) 04-18 13:22:42.812: e/androidruntime(4096): @ android.app.activitythread.access$1500(activitythread.java:117) 04-18 13:22:42.812: e/androidruntime(4096): @ android.app.activitythread$h.handlemessage(activitythread.java:935) 04-18 13:22:42.812: e/androidruntime(4096): @ android.os.handler.dispatchmessage(handler.java:99) 04-18 13:22:42.812: e/androidruntime(4096): @ android.os.looper.loop(looper.java:130) 04-18 13:22:42.812: e/androidruntime(4096): @ android.app.activitythread.main(activitythread.java:3687) 04-18 13:22:42.812: e/androidruntime(4096): @ java.lang.reflect.method.invokenative(native method) 04-18 13:22:42.812: e/androidruntime(4096): @ java.lang.reflect.method.invoke(method.java:507) 04-18 13:22:42.812: e/androidruntime(4096): @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:842) 04-18 13:22:42.812: e/androidruntime(4096): @ com.android.internal.os.zygoteinit.main(zygoteinit.java:600) 04-18 13:22:42.812: e/androidruntime(4096): @ dalvik.system.nativestart.main(native method) 04-18 13:22:42.812: e/androidruntime(4096): caused by: java.lang.illegalstateexception: specified child has parent. must call removeview() on child's parent first. 04-18 13:22:42.812: e/androidruntime(4096): @ android.view.viewgroup.addviewinner(viewgroup.java:1976) 04-18 13:22:42.812: e/androidruntime(4096): @ android.view.viewgroup.addview(viewgroup.java:1871) 04-18 13:22:42.812: e/androidruntime(4096): @ android.view.viewgroup.addview(viewgroup.java:1851) 04-18 13:22:42.812: e/androidruntime(4096): @ com.android.internal.policy.impl.phonewindow.setcontentview(phonewindow.java:228) 04-18 13:22:42.812: e/androidruntime(4096): @ com.android.internal.policy.impl.phonewindow.setcontentview(phonewindow.java:218) 04-18 13:22:42.812: e/androidruntime(4096): @ android.app.activity.setcontentview(activity.java:1668) 04-18 13:22:42.812: e/androidruntime(4096): @ com.ufida.coverflow.coverflowactivity.oncreate(coverflowactivity.java:32) 04-18 13:22:42.812: e/androidruntime(4096): @ android.app.instrumentation.callactivityoncreate(instrumentation.java:1047) 04-18 13:22:42.812: e/androidruntime(4096): @ android.app.activitythread.performlaunchactivity(activitythread.java:1615) 04-18 13:22:42.812: e/androidruntime(4096): ... 11 more
since want xml need find view id try this:
xml:
<?xml version="1.0" encoding="utf-8"?> <linearlayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <com.yourpackagename.coverflow android:id="@+id/coverflowid" android:layout_width="match_parent" android:layout_height="match_parent" /> </linearlayout> activity:
import com.yourpackagename.coverflow; // coverflow class coverflow coverflow; public class coverflowactivity extends activity{ //in oncreate this: coverflow = (coverflow) findviewbyid(r.id.coverflowid); }
Comments
Post a Comment