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PONavigation Drawer
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  1. PONavigation Drawer
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    copied!<p>I have a problem by implementing the navigation drawer. my xml and .java code:</p> <pre><code>&lt;android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/drawer_layout" android:layout_width="match_parent" android:layout_height="match_parent" &gt; &lt;!-- The main content view --&gt; &lt;RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" android:background="@drawable/hintergrund" tools:context=".MainActivity" &gt; &lt;ImageButton android:id="@+id/imgBtNewDocuStartPage" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_alignParentTop="true" android:layout_marginLeft="20dp" android:layout_marginTop="15dp" android:background="@drawable/buttonschatten" android:contentDescription="@drawable/ic_notiz" android:onClick="dokuklick" android:src="@drawable/ic_notiz" /&gt; &lt;ImageButton android:id="@+id/imgBtSearchStartPage" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignTop="@+id/imgBtNewDocuStartPage" android:layout_toRightOf="@+id/imgBtNewDocuStartPage" android:background="@drawable/buttonschatten" android:contentDescription="@drawable/ic_suchen" android:onClick="suchenklick" android:src="@drawable/ic_suchen" /&gt; &lt;Button android:id="@+id/btUnreadCommentsStartPage" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_alignParentRight="true" android:layout_below="@+id/imgBtNewDocuStartPage" android:layout_marginTop="26dp" android:background="@drawable/rahmen" android:text="@string/Start.comment" android:drawableRight="@drawable/ic_kom" android:textColor="@color/button_color" /&gt; &lt;Button android:id="@+id/btUnreadDocusStartPage" style="@style/AppBaseTheme" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignLeft="@+id/btUnreadCommentsStartPage" android:layout_alignRight="@+id/btUnreadCommentsStartPage" android:layout_below="@+id/btUnreadCommentsStartPage" android:layout_marginTop="10dp" android:background="@drawable/rahmen" android:onClick="ungeleseneDoku" android:text="@string/Start.unread_docu" android:drawableRight="@drawable/ic_doku" android:textColor="@color/button_color" /&gt; &lt;Button android:id="@+id/btUnreadEvaluationsStartPage" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignLeft="@+id/btUnreadDocusStartPage" android:layout_alignParentRight="true" android:layout_below="@+id/btUnreadDocusStartPage" android:layout_marginTop="10dp" android:background="@drawable/rahmen" android:text="@string/Start.outcomes" android:drawableRight="@drawable/ic_erg" android:textColor="@color/button_color" /&gt; &lt;Button android:id="@+id/btFavouritesStartPage" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignLeft="@+id/btUnreadEvaluationsStartPage" android:layout_alignRight="@+id/btUnreadEvaluationsStartPage" android:layout_below="@+id/btUnreadEvaluationsStartPage" android:layout_marginTop="10dp" android:background="@drawable/rahmen" android:text="@string/Start.favorite" android:drawableRight="@drawable/ic_fav" android:textColor="@color/button_color" /&gt; &lt;/RelativeLayout&gt; &lt;!-- The navigation drawer --&gt; &lt;ListView android:id="@+id/drawer" android:layout_width="240dp" android:layout_height="match_parent" android:layout_gravity="left" android:background="#78BF3D" android:choiceMode="singleChoice" android:divider="@android:color/transparent" android:dividerHeight="0dp" /&gt; &lt;/android.support.v4.widget.DrawerLayout&gt; import android.os.Bundle; import android.app.Activity; import android.content.Intent; import android.view.Menu; import android.view.View; import android.content.res.Configuration; import android.support.v4.app.ActionBarDrawerToggle; import android.support.v4.view.GravityCompat; import android.support.v4.widget.DrawerLayout; import android.view.MenuItem; import android.widget.AdapterView; import android.widget.ListView; public class StartActivity extends Activity { private ListView mDrawerList; private DrawerLayout mDrawer; private CustomActionBarDrawerToggle mDrawerToggle; private String[] menuItems; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.startpage); // enable ActionBar app icon to behave as action to toggle nav drawer getActionBar().setDisplayHomeAsUpEnabled(true); mDrawer = (DrawerLayout) findViewById(R.id.drawer_layout); // set a custom shadow that overlays the main content when the drawer // opens mDrawer.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START); _initMenu(); mDrawerToggle = new CustomActionBarDrawerToggle(this, mDrawer); mDrawer.setDrawerListener(mDrawerToggle); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.items, menu); return true; } private void _initMenu() { NsMenuAdapter mAdapter = new NsMenuAdapter(this); // Add first block menuItems = getResources().getStringArray( R.array.ns_menu_items); String[] menuItemsIcon = getResources().getStringArray( R.array.ns_menu_items_icon); int res = 0; for (String item : menuItems) { int id_title = getResources().getIdentifier(item, "string", this.getPackageName()); int id_icon = getResources().getIdentifier(menuItemsIcon[res], "drawable", this.getPackageName()); NsMenuItemModel mItem = new NsMenuItemModel(id_title, id_icon); mAdapter.addItem(mItem); res++; } mDrawerList = (ListView) findViewById(R.id.drawer); if (mDrawerList != null) mDrawerList.setAdapter(mAdapter); mDrawerList.setOnItemClickListener(new DrawerItemClickListener()); } @Override protected void onPostCreate(Bundle savedInstanceState) { super.onPostCreate(savedInstanceState); // Sync the toggle state after onRestoreInstanceState has occurred. mDrawerToggle.syncState(); } @Override public void onConfigurationChanged(Configuration newConfig) { super.onConfigurationChanged(newConfig); mDrawerToggle.onConfigurationChanged(newConfig); } /* Called whenever we call invalidateOptionsMenu() */ @Override public boolean onPrepareOptionsMenu(Menu menu) { // If the nav drawer is open, hide action items related to the content view boolean drawerOpen = mDrawer.isDrawerOpen(mDrawerList); menu.findItem(R.id.action_refresh).setVisible(!drawerOpen); return super.onPrepareOptionsMenu(menu); } @Override public boolean onOptionsItemSelected(MenuItem item) { /* * The action bar home/up should open or close the drawer. * ActionBarDrawerToggle will take care of this. */ if (mDrawerToggle.onOptionsItemSelected(item)) { return true; } // Handle your other action bar items... return super.onOptionsItemSelected(item); } private class CustomActionBarDrawerToggle extends ActionBarDrawerToggle { public CustomActionBarDrawerToggle(Activity mActivity,DrawerLayout mDrawerLayout){ super( mActivity, mDrawerLayout, R.drawable.ic_drawer, R.string.ns_menu_open, R.string.ns_menu_close); } @Override public void onDrawerClosed(View view) { getActionBar().setTitle(getString(R.string.ns_menu_close)); invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu() } @Override public void onDrawerOpened(View drawerView) { getActionBar().setTitle(getString(R.string.ns_menu_open)); invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu() } } private class DrawerItemClickListener implements ListView.OnItemClickListener { @Override public void onItemClick(AdapterView&lt;?&gt; parent, View view, int position, long id) { // Highlight the selected item, update the title, and close the drawer // update selected item and title, then close the drawer mDrawerList.setItemChecked(position, true); mDrawer.closeDrawer(mDrawerList); } } } </code></pre> <p>This doesn´t work, yesterday it worked, and now it crashes. I tried everything but have not found a solution. I hope you can help me.</p> <blockquote> <p></p> </blockquote> <pre><code>07-02 12:04:24.715: E/Trace(3282): error opening trace file: No such file or directory (2) 07-02 12:04:32.394: E/dalvikvm(3282): Could not find class 'android.support.v4.widget.DrawerLayout', referenced from method com.example.talkreflection.StartActivity.onCreate 07-02 12:04:32.705: E/AndroidRuntime(3282): FATAL EXCEPTION: main 07-02 12:04:32.705: E/AndroidRuntime(3282): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.talkreflection/com.example.talkreflection.StartActivity}: android.view.InflateException: Binary XML file line #1: Error inflating class android.support.v4.widget.DrawerLayout 07-02 12:04:32.705: E/AndroidRuntime(3282): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180) 07-02 12:04:32.705: E/AndroidRuntime(3282): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230) 07-02 12:04:32.705: E/AndroidRuntime(3282): at android.app.ActivityThread.access$600(ActivityThread.java:141) 07-02 12:04:32.705: E/AndroidRuntime(3282): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234) 07-02 12:04:32.705: E/AndroidRuntime(3282): at android.os.Handler.dispatchMessage(Handler.java:99) 07-02 12:04:32.705: E/AndroidRuntime(3282): at android.os.Looper.loop(Looper.java:137) 07-02 12:04:32.705: E/AndroidRuntime(3282): at android.app.ActivityThread.main(ActivityThread.java:5041) 07-02 12:04:32.705: E/AndroidRuntime(3282): at java.lang.reflect.Method.invokeNative(Native Method) 07-02 12:04:32.705: E/AndroidRuntime(3282): at java.lang.reflect.Method.invoke(Method.java:511) 07-02 12:04:32.705: E/AndroidRuntime(3282): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) 07-02 12:04:32.705: E/AndroidRuntime(3282): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560) 07-02 12:04:32.705: E/AndroidRuntime(3282): at dalvik.system.NativeStart.main(Native Method) 07-02 12:04:32.705: E/AndroidRuntime(3282): Caused by: android.view.InflateException: Binary XML file line #1: Error inflating class android.support.v4.widget.DrawerLayout 07-02 12:04:32.705: E/AndroidRuntime(3282): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:698) 07-02 12:04:32.705: E/AndroidRuntime(3282): at android.view.LayoutInflater.inflate(LayoutInflater.java:466) 07-02 12:04:32.705: E/AndroidRuntime(3282): at android.view.LayoutInflater.inflate(LayoutInflater.java:396) 07-02 12:04:32.705: E/AndroidRuntime(3282): at android.view.LayoutInflater.inflate(LayoutInflater.java:352) 07-02 12:04:32.705: E/AndroidRuntime(3282): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:270) 07-02 12:04:32.705: E/AndroidRuntime(3282): at android.app.Activity.setContentView(Activity.java:1881) 07-02 12:04:32.705: E/AndroidRuntime(3282): at com.example.talkreflection.StartActivity.onCreate(StartActivity.java:29) 07-02 12:04:32.705: E/AndroidRuntime(3282): at android.app.Activity.performCreate(Activity.java:5104) 07-02 12:04:32.705: E/AndroidRuntime(3282): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080) 07-02 12:04:32.705: E/AndroidRuntime(3282): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144) 07-02 12:04:32.705: E/AndroidRuntime(3282): ... 11 more 07-02 12:04:32.705: E/AndroidRuntime(3282): Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.v4.widget.DrawerLayout" on path: /data/app/com.example.talkreflection-2.apk 07-02 12:04:32.705: E/AndroidRuntime(3282): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:65) 07-02 12:04:32.705: E/AndroidRuntime(3282): at java.lang.ClassLoader.loadClass(ClassLoader.java:501) 07-02 12:04:32.705: E/AndroidRuntime(3282): at java.lang.ClassLoader.loadClass(ClassLoader.java:461) 07-02 12:04:32.705: E/AndroidRuntime(3282): at android.view.LayoutInflater.createView(LayoutInflater.java:552) 07-02 12:04:32.705: E/AndroidRuntime(3282): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:687) 07-02 12:04:32.705: E/AndroidRuntime(3282): ... 20 more </code></pre> <p>sorry for my bad english.</p>
 

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