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POCaused by: java.lang.ClassCastException: android.widget.RelativeLayout cannot be cast to com.slidingmenu.lib.SlidingMenu
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copied!<p>I've just read all questions about this problem at stackoverflow and some forums, but still have no solution. I tried to remove R.java, clear the cache, edit .xml but nothing helps.</p> <p>Error text: </p> <pre><code>java.lang.RuntimeException: Unable to start activity ComponentInfo{com.easyten.app/com.easyten.app.EasyTenActivity}: java.lang.ClassCastException: android.widget.RelativeLayout cannot be cast to com.slidingmenu.lib.SlidingMenu ... Caused by: java.lang.ClassCastException: android.widget.RelativeLayout cannot be cast to com.slidingmenu.lib.SlidingMenu at com.slidingmenu.lib.app.SlidingActivityHelper.onCreate(SlidingActivityHelper.java:32) </code></pre> <p>This is the code:<br /><br /> <code>slidingmenumain.xml</code></p> <pre><code><?xml version="1.0" encoding="utf-8"?> <com.slidingmenu.lib.SlidingMenu xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/slidingmenumain" android:layout_width="fill_parent" android:layout_height="fill_parent" /> </code></pre> <p><br /> <code>SlidingActivityHelper.java</code></p> <pre><code>package com.slidingmenu.lib.app; import android.app.Activity; import android.content.res.TypedArray; import android.os.Bundle; import android.view.KeyEvent; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.view.ViewGroup.LayoutParams; import com.slidingmenu.lib.R; import com.slidingmenu.lib.SlidingMenu; public class SlidingActivityHelper { private Activity mActivity; private SlidingMenu mSlidingMenu; private View mViewAbove; private View mViewBehind; private boolean mBroadcasting = false; private boolean mOnPostCreateCalled = false; private boolean mEnableSlide = true; public SlidingActivityHelper(Activity activity) { mActivity = activity; } public void onCreate(Bundle savedInstanceState) { mSlidingMenu = (SlidingMenu) LayoutInflater.from(mActivity).inflate(R.layout.slidingmenumain, null); } ...other code } </code></pre> <p><br /> 32 line of <code>SlidingActivityHelper.java</code> is <code>mSlidingMenu = (SlidingMenu) LayoutInflater.from(mActivity).inflate(R.layout.slidingmenumain, null);</code></p> <p><br /> <code>SlidingMenu.java</code></p> <pre><code>package com.slidingmenu.lib; import java.lang.reflect.Method; import android.app.Activity; import android.content.Context; import android.content.res.TypedArray; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Canvas; import android.graphics.Point; import android.graphics.Rect; import android.os.Parcel; import android.os.Parcelable; import android.util.AttributeSet; import android.view.Display; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.view.Window; import android.view.WindowManager; import android.widget.RelativeLayout; import com.slidingmenu.lib.CustomViewAbove.OnPageChangeListener; public class SlidingMenu extends RelativeLayout { public static final int TOUCHMODE_MARGIN = 0; public static final int TOUCHMODE_FULLSCREEN = 1; private CustomViewAbove mViewAbove; private CustomViewBehind mViewBehind; private OnOpenListener mOpenListener; private OnCloseListener mCloseListener; //private boolean mSlidingEnabled; public static void attachSlidingMenu(Activity activity, SlidingMenu sm, boolean slidingTitle) { if (sm.getParent() != null) throw new IllegalStateException("SlidingMenu cannot be attached to another view when" + " calling the static method attachSlidingMenu"); if (slidingTitle) { // get the window background TypedArray a = activity.getTheme().obtainStyledAttributes(new int[] {android.R.attr.windowBackground}); int background = a.getResourceId(0, 0); // move everything into the SlidingMenu ViewGroup decor = (ViewGroup) activity.getWindow().getDecorView(); ViewGroup decorChild = (ViewGroup) decor.getChildAt(0); decor.removeAllViews(); // save ActionBar themes that have transparent assets decorChild.setBackgroundResource(background); sm.setContent(decorChild); decor.addView(sm); } else { // take the above view out of ViewGroup content = (ViewGroup) activity.findViewById(Window.ID_ANDROID_CONTENT); View above = content.getChildAt(0); content.removeAllViews(); sm.setContent(above); content.addView(sm, LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT); } } public interface OnOpenListener { public void onOpen(); } public interface OnOpenedListener { public void onOpened(); } public interface OnCloseListener { public void onClose(); } public interface OnClosedListener { public void onClosed(); } public interface CanvasTransformer { public void transformCanvas(Canvas canvas, float percentOpen); } public SlidingMenu(Context context) { this(context, null); } public SlidingMenu(Context context, AttributeSet attrs) { this(context, attrs, 0); } public SlidingMenu(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); LayoutParams behindParams = new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT); mViewBehind = new CustomViewBehind(context); addView(mViewBehind, behindParams); LayoutParams aboveParams = new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT); mViewAbove = new CustomViewAbove(context); addView(mViewAbove, aboveParams); // register the CustomViewBehind2 with the CustomViewAbove mViewAbove.setCustomViewBehind(mViewBehind); mViewBehind.setCustomViewAbove(mViewAbove); mViewAbove.setOnPageChangeListener(new OnPageChangeListener() { public static final int POSITION_OPEN = 0; public static final int POSITION_CLOSE = 1; public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { } public void onPageSelected(int position) { if (position == POSITION_OPEN && mOpenListener != null) { mOpenListener.onOpen(); } else if (position == POSITION_CLOSE && mCloseListener != null) { mCloseListener.onClose(); } } }); // now style everything! TypedArray ta = context.obtainStyledAttributes(attrs, R.styleable.SlidingMenu); // set the above and behind views if defined in xml int viewAbove = ta.getResourceId(R.styleable.SlidingMenu_viewAbove, -1); if (viewAbove != -1) setContent(viewAbove); int viewBehind = ta.getResourceId(R.styleable.SlidingMenu_viewBehind, -1); if (viewBehind != -1) setMenu(viewBehind); int touchModeAbove = ta.getInt(R.styleable.SlidingMenu_aboveTouchMode, TOUCHMODE_MARGIN); setTouchModeAbove(touchModeAbove); int touchModeBehind = ta.getInt(R.styleable.SlidingMenu_behindTouchMode, TOUCHMODE_MARGIN); setTouchModeBehind(touchModeBehind); int offsetBehind = (int) ta.getDimension(R.styleable.SlidingMenu_behindOffset, -1); int widthBehind = (int) ta.getDimension(R.styleable.SlidingMenu_behindWidth, -1); if (offsetBehind != -1 && widthBehind != -1) throw new IllegalStateException("Cannot set both behindOffset and behindWidth for a SlidingMenu"); else if (offsetBehind != -1) setBehindOffset(offsetBehind); else if (widthBehind != -1) setBehindWidth(widthBehind); else setBehindOffset(0); float scrollOffsetBehind = ta.getFloat(R.styleable.SlidingMenu_behindScrollScale, 0.33f); setBehindScrollScale(scrollOffsetBehind); int shadowRes = ta.getResourceId(R.styleable.SlidingMenu_shadowDrawable, -1); if (shadowRes != -1) { setShadowDrawable(shadowRes); } int shadowWidth = (int) ta.getDimension(R.styleable.SlidingMenu_shadowWidth, 0); setShadowWidth(shadowWidth); boolean fadeEnabled = ta.getBoolean(R.styleable.SlidingMenu_behindFadeEnabled, true); setFadeEnabled(fadeEnabled); float fadeDeg = ta.getFloat(R.styleable.SlidingMenu_behindFadeDegree, 0.66f); setFadeDegree(fadeDeg); boolean selectorEnabled = ta.getBoolean(R.styleable.SlidingMenu_selectorEnabled, false); setSelectorEnabled(selectorEnabled); int selectorRes = ta.getResourceId(R.styleable.SlidingMenu_selectorDrawable, -1); if (selectorRes != -1) setSelectorDrawable(selectorRes); } public void setContent(int res) { setContent(LayoutInflater.from(getContext()).inflate(res, null)); } public void setContent(View v) { mViewAbove.setContent(v); mViewAbove.invalidate(); showAbove(true); } public void setMenu(int res) { setMenu(LayoutInflater.from(getContext()).inflate(res, null)); } public void setMenu(View v) { mViewBehind.setMenu(v); mViewBehind.invalidate(); } public void setSlidingEnabled(boolean b) { mViewAbove.setSlidingEnabled(b); } public boolean isSlidingEnabled() { return mViewAbove.isSlidingEnabled(); } /** * * @param b Whether or not the SlidingMenu is in a static mode * (i.e. nothing is moving and everything is showing) */ public void setStatic(boolean b) { if (b) { setSlidingEnabled(false); mViewAbove.setCustomViewBehind(null); mViewAbove.setCurrentItem(1); mViewBehind.setCurrentItem(0); } else { mViewAbove.setCurrentItem(1); mViewBehind.setCurrentItem(1); mViewAbove.setCustomViewBehind(mViewBehind); setSlidingEnabled(true); } } /** * Shows the behind view */ public void showBehind(boolean b) { mViewAbove.setCurrentItem(0, b); } public void showBehind() { mViewAbove.setCurrentItem(0); } /** * Shows the above view */ public void showAbove(boolean b) { mViewAbove.setCurrentItem(1, b); } public void showAbove() { mViewAbove.setCurrentItem(1); } /** * * @return Whether or not the behind view is showing */ public boolean isBehindShowing() { return mViewAbove.getCurrentItem() == 0; } /** * * @return The margin on the right of the screen that the behind view scrolls to */ public int getBehindOffset() { return ((RelativeLayout.LayoutParams)mViewBehind.getLayoutParams()).rightMargin; } /** * * @param i The margin on the right of the screen that the behind view scrolls to */ public void setBehindOffset(int i) { RelativeLayout.LayoutParams params = ((RelativeLayout.LayoutParams)mViewBehind.getLayoutParams()); int bottom = params.bottomMargin; int top = params.topMargin; int left = params.leftMargin; params.setMargins(left, top, i, bottom); } /** * * @param i The width the Sliding Menu will open to in pixels */ @SuppressWarnings("deprecation") public void setBehindWidth(int i) { int width; Display display = ((WindowManager) getContext().getSystemService(Context.WINDOW_SERVICE)) .getDefaultDisplay(); try { Class<?> cls = Display.class; Class<?>[] parameterTypes = {Point.class}; Point parameter = new Point(); Method method = cls.getMethod("getSize", parameterTypes); method.invoke(display, parameter); width = parameter.x; } catch (Exception e) { width = display.getWidth(); } setBehindOffset(width-i); } /** * * @param res A resource ID which points to the width the Sliding Menu will open to */ public void setBehindWidthRes(int res) { int i = (int) getContext().getResources().getDimension(res); setBehindWidth(i); } /** * * @param res The dimension resource to be set as the behind offset */ public void setBehindOffsetRes(int res) { int i = (int) getContext().getResources().getDimension(res); setBehindOffset(i); } /** * * @return The scale of the parallax scroll */ public float getBehindScrollScale() { return mViewAbove.getScrollScale(); } /** * * @param f The scale of the parallax scroll (i.e. 1.0f scrolls 1 pixel for every * 1 pixel that the above view scrolls and 0.0f scrolls 0 pixels) */ public void setBehindScrollScale(float f) { mViewAbove.setScrollScale(f); } public void setBehindCanvasTransformer(CanvasTransformer t) { mViewBehind.setCanvasTransformer(t); } public int getTouchModeAbove() { return mViewAbove.getTouchMode(); } public void setTouchModeAbove(int i) { if (i != TOUCHMODE_FULLSCREEN && i != TOUCHMODE_MARGIN) { throw new IllegalStateException("TouchMode must be set to either" + "TOUCHMODE_FULLSCREEN or TOUCHMODE_MARGIN."); } mViewAbove.setTouchMode(i); } public int getTouchModeBehind() { return mViewBehind.getTouchMode(); } public void setTouchModeBehind(int i) { if (i != TOUCHMODE_FULLSCREEN && i != TOUCHMODE_MARGIN) { throw new IllegalStateException("TouchMode must be set to either" + "TOUCHMODE_FULLSCREEN or TOUCHMODE_MARGIN."); } mViewBehind.setTouchMode(i); } public void setShadowDrawable(int resId) { mViewAbove.setShadowDrawable(resId); } public void setShadowWidthRes(int resId) { setShadowWidth((int)getResources().getDimension(resId)); } public void setShadowWidth(int pixels) { mViewAbove.setShadowWidth(pixels); } public void setFadeEnabled(boolean b) { mViewAbove.setBehindFadeEnabled(b); } public void setFadeDegree(float f) { mViewAbove.setBehindFadeDegree(f); } public void setSelectorEnabled(boolean b) { mViewAbove.setSelectorEnabled(true); } public void setSelectedView(View v) { mViewAbove.setSelectedView(v); } public void setSelectorDrawable(int res) { mViewAbove.setSelectorDrawable(BitmapFactory.decodeResource(getResources(), res)); } public void setSelectorDrawable(Bitmap b) { mViewAbove.setSelectorDrawable(b); } public void setOnOpenListener(OnOpenListener listener) { //mViewAbove.setOnOpenListener(listener); mOpenListener = listener; } public void setOnCloseListener(OnCloseListener listener) { //mViewAbove.setOnCloseListener(listener); mCloseListener = listener; } public void setOnOpenedListener(OnOpenedListener listener) { mViewAbove.setOnOpenedListener(listener); } public void setOnClosedListener(OnClosedListener listener) { mViewAbove.setOnClosedListener(listener); } private static class SavedState extends BaseSavedState { boolean mBehindShowing; public SavedState(Parcelable superState) { super(superState); } public void writeToParcel(Parcel out, int flags) { super.writeToParcel(out, flags); out.writeBooleanArray(new boolean[]{mBehindShowing}); } /* public static final Parcelable.Creator<SavedState> CREATOR = ParcelableCompat.newCreator(new ParcelableCompatCreatorCallbacks<SavedState>() { public SavedState createFromParcel(Parcel in, ClassLoader loader) { return new SavedState(in); } public SavedState[] newArray(int size) { return new SavedState[size]; } }); SavedState(Parcel in) { super(in); boolean[] showing = new boolean[1]; in.readBooleanArray(showing); mBehindShowing = showing[0]; } */ } @Override protected Parcelable onSaveInstanceState() { Parcelable superState = super.onSaveInstanceState(); SavedState ss = new SavedState(superState); ss.mBehindShowing = isBehindShowing(); return ss; } @Override protected void onRestoreInstanceState(Parcelable state) { if (!(state instanceof SavedState)) { super.onRestoreInstanceState(state); return; } SavedState ss = (SavedState)state; super.onRestoreInstanceState(ss.getSuperState()); if (ss.mBehindShowing) { showBehind(true); } else { showAbove(true); } } @Override protected boolean fitSystemWindows(Rect insets) { int leftPadding = getPaddingLeft() + insets.left; int rightPadding = getPaddingRight() + insets.right; int topPadding = insets.top; int bottomPadding = insets.bottom; this.setPadding(leftPadding, topPadding, rightPadding, bottomPadding); return super.fitSystemWindows(insets); } } </code></pre> <p>What's wrong? How can I fix it? I'm using IntelliJ IDEA 12 CE. Thanks a lot for any help!</p>

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