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我正在尝试学习本教程 http://www.androidhive.info/2015/04/android-getting-started-with-material-design/ .当我到达第 13 步时,我测试了该应用程序,它工作正常,但是当我到达第 23 步抽屉导航时,我遇到了一个问题,即
android.support.v7.widget.RecyclerView cannot be instantiated
unable to bind xxxx to DDMS
127.0.0.1 localhost
来自 Windows 主机文件,因为除了它刚刚被评论之外没有其他文件。我什至尝试使用此代码
adb kill-server
和
adb start-server
从 cmd。我也去了
window -> preference -> Android -> DDMS
在那里我试图把值
8601 on Base local debugger port
和
check the use ADBHOST
并添加了
values 127.0.0.1
.我一一做了,但不幸的是错误仍然存在。
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.eureka4.studentdictionary"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="11"
android:targetSdkVersion="21" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/MyMaterialTheme" >
<activity
android:name=".activity.MainActivity"
android:label="@string/app_name"
android:screenOrientation="portrait">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
02-21 18:56:22.596: W/dalvikvm(15690): VFY: unable to find class referenced in signature (Landroid/view/SearchEvent;)
02-21 18:56:22.596: I/dalvikvm(15690): Could not find method android.view.Window$Callback.onSearchRequested, referenced from method android.support.v7.view.WindowCallbackWrapper.onSearchRequested
02-21 18:56:22.596: W/dalvikvm(15690): VFY: unable to resolve interface method 16375: Landroid/view/Window$Callback;.onSearchRequested (Landroid/view/SearchEvent;)Z
02-21 18:56:22.596: D/dalvikvm(15690): VFY: replacing opcode 0x72 at 0x0002
02-21 18:56:22.596: I/dalvikvm(15690): Could not find method android.view.Window$Callback.onWindowStartingActionMode, referenced from method android.support.v7.view.WindowCallbackWrapper.onWindowStartingActionMode
02-21 18:56:22.596: W/dalvikvm(15690): VFY: unable to resolve interface method 16379: Landroid/view/Window$Callback;.onWindowStartingActionMode (Landroid/view/ActionMode$Callback;I)Landroid/view/ActionMode;
02-21 18:56:22.596: D/dalvikvm(15690): VFY: replacing opcode 0x72 at 0x0002
02-21 18:56:22.656: I/AppCompatViewInflater(15690): app:theme is now deprecated. Please move to using android:theme instead.
02-21 18:56:22.656: I/dalvikvm(15690): Could not find method android.content.res.TypedArray.getChangingConfigurations, referenced from method android.support.v7.widget.TintTypedArray.getChangingConfigurations
02-21 18:56:22.656: W/dalvikvm(15690): VFY: unable to resolve virtual method 406: Landroid/content/res/TypedArray;.getChangingConfigurations ()I
02-21 18:56:22.656: D/dalvikvm(15690): VFY: replacing opcode 0x6e at 0x0002
02-21 18:56:22.656: I/dalvikvm(15690): Could not find method android.content.res.TypedArray.getType, referenced from method android.support.v7.widget.TintTypedArray.getType
02-21 18:56:22.656: W/dalvikvm(15690): VFY: unable to resolve virtual method 428: Landroid/content/res/TypedArray;.getType (I)I
02-21 18:56:22.656: D/dalvikvm(15690): VFY: replacing opcode 0x6e at 0x0002
02-21 18:56:22.706: D/AndroidRuntime(15690): Shutting down VM
02-21 18:56:22.706: W/dalvikvm(15690): threadid=1: thread exiting with uncaught exception (group=0x55e05b20)
02-21 18:56:22.706: D/AndroidRuntime(15690): procName from cmdline: com.eureka4.studentdictionary
02-21 18:56:22.706: E/AndroidRuntime(15690): in writeCrashedAppName, pkgName :com.eureka4.studentdictionary
02-21 18:56:22.746: I/Process(15690): Sending signal. PID: 15690 SIG: 9
02-21 18:56:22.936: W/dalvikvm(15708): VFY: unable to find class referenced in signature (Landroid/view/SearchEvent;)
02-21 18:56:22.936: I/dalvikvm(15708): Could not find method android.view.Window$Callback.onSearchRequested, referenced from method android.support.v7.view.WindowCallbackWrapper.onSearchRequested
02-21 18:56:22.936: W/dalvikvm(15708): VFY: unable to resolve interface method 16375: Landroid/view/Window$Callback;.onSearchRequested (Landroid/view/SearchEvent;)Z
02-21 18:56:22.936: D/dalvikvm(15708): VFY: replacing opcode 0x72 at 0x0002
02-21 18:56:22.936: I/dalvikvm(15708): Could not find method android.view.Window$Callback.onWindowStartingActionMode, referenced from method android.support.v7.view.WindowCallbackWrapper.onWindowStartingActionMode
02-21 18:56:22.936: W/dalvikvm(15708): VFY: unable to resolve interface method 16379: Landroid/view/Window$Callback;.onWindowStartingActionMode (Landroid/view/ActionMode$Callback;I)Landroid/view/ActionMode;
02-21 18:56:22.936: D/dalvikvm(15708): VFY: replacing opcode 0x72 at 0x0002
02-21 18:56:22.966: I/AppCompatViewInflater(15708): app:theme is now deprecated. Please move to using android:theme instead.
02-21 18:56:22.966: I/dalvikvm(15708): Could not find method android.content.res.TypedArray.getChangingConfigurations, referenced from method android.support.v7.widget.TintTypedArray.getChangingConfigurations
02-21 18:56:22.966: W/dalvikvm(15708): VFY: unable to resolve virtual method 406: Landroid/content/res/TypedArray;.getChangingConfigurations ()I
02-21 18:56:22.976: D/dalvikvm(15708): VFY: replacing opcode 0x6e at 0x0002
02-21 18:56:22.976: I/dalvikvm(15708): Could not find method android.content.res.TypedArray.getType, referenced from method android.support.v7.widget.TintTypedArray.getType
02-21 18:56:22.976: W/dalvikvm(15708): VFY: unable to resolve virtual method 428: Landroid/content/res/TypedArray;.getType (I)I
02-21 18:56:22.976: D/dalvikvm(15708): VFY: replacing opcode 0x6e at 0x0002
02-21 18:56:42.506: W/dalvikvm(15781): VFY: unable to find class referenced in signature (Landroid/view/SearchEvent;)
02-21 18:56:42.506: I/dalvikvm(15781): Could not find method android.view.Window$Callback.onSearchRequested, referenced from method android.support.v7.view.WindowCallbackWrapper.onSearchRequested
02-21 18:56:42.506: W/dalvikvm(15781): VFY: unable to resolve interface method 16375: Landroid/view/Window$Callback;.onSearchRequested (Landroid/view/SearchEvent;)Z
02-21 18:56:42.506: D/dalvikvm(15781): VFY: replacing opcode 0x72 at 0x0002
02-21 18:56:42.506: I/dalvikvm(15781): Could not find method android.view.Window$Callback.onWindowStartingActionMode, referenced from method android.support.v7.view.WindowCallbackWrapper.onWindowStartingActionMode
02-21 18:56:42.516: W/dalvikvm(15781): VFY: unable to resolve interface method 16379: Landroid/view/Window$Callback;.onWindowStartingActionMode (Landroid/view/ActionMode$Callback;I)Landroid/view/ActionMode;
02-21 18:56:42.516: D/dalvikvm(15781): VFY: replacing opcode 0x72 at 0x0002
02-21 18:56:42.546: I/AppCompatViewInflater(15781): app:theme is now deprecated. Please move to using android:theme instead.
02-21 18:56:42.556: I/dalvikvm(15781): Could not find method android.content.res.TypedArray.getChangingConfigurations, referenced from method android.support.v7.widget.TintTypedArray.getChangingConfigurations
02-21 18:56:42.556: W/dalvikvm(15781): VFY: unable to resolve virtual method 406: Landroid/content/res/TypedArray;.getChangingConfigurations ()I
02-21 18:56:42.556: D/dalvikvm(15781): VFY: replacing opcode 0x6e at 0x0002
02-21 18:56:42.556: I/dalvikvm(15781): Could not find method android.content.res.TypedArray.getType, referenced from method android.support.v7.widget.TintTypedArray.getType
02-21 18:56:42.556: W/dalvikvm(15781): VFY: unable to resolve virtual method 428: Landroid/content/res/TypedArray;.getType (I)I
02-21 18:56:42.556: D/dalvikvm(15781): VFY: replacing opcode 0x6e at 0x0002
02-21 18:56:42.586: D/AndroidRuntime(15781): Shutting down VM
02-21 18:56:42.596: W/dalvikvm(15781): threadid=1: thread exiting with uncaught exception (group=0x55e05b20)
02-21 18:56:42.596: I/Process(15781): Sending signal. PID: 15781 SIG: 9
02-21 18:56:42.596: D/AndroidRuntime(15781): procName from cmdline: com.eureka4.studentdictionary
02-21 18:56:42.596: E/AndroidRuntime(15781): in writeCrashedAppName, pkgName :com.eureka4.studentdictionary
02-21 18:56:42.596: D/AndroidRuntime(15781): file written successfully with content: com.eureka4.studentdictionary StringBuffer : ;com.eureka4.studentdictionary
02-21 18:56:42.596: E/AndroidRuntime(15781): FATAL EXCEPTION: main
02-21 18:56:42.596: E/AndroidRuntime(15781): Process: com.eureka4.studentdictionary, PID: 15781
02-21 18:56:42.596: E/AndroidRuntime(15781): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.eureka4.studentdictionary/com.eureka4.studentdictionary.activity.MainActivity}: android.view.InflateException: Binary XML file line #36: Error inflating class fragment
02-21 18:56:42.596: E/AndroidRuntime(15781): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2195)
02-21 18:56:42.596: E/AndroidRuntime(15781): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
02-21 18:56:42.596: E/AndroidRuntime(15781): at android.app.ActivityThread.access$800(ActivityThread.java:135)
02-21 18:56:42.596: E/AndroidRuntime(15781): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
02-21 18:56:42.596: E/AndroidRuntime(15781): at android.os.Handler.dispatchMessage(Handler.java:102)
02-21 18:56:42.596: E/AndroidRuntime(15781): at android.os.Looper.loop(Looper.java:136)
02-21 18:56:42.596: E/AndroidRuntime(15781): at android.app.ActivityThread.main(ActivityThread.java:5021)
02-21 18:56:42.596: E/AndroidRuntime(15781): at java.lang.reflect.Method.invokeNative(Native Method)
02-21 18:56:42.596: E/AndroidRuntime(15781): at java.lang.reflect.Method.invoke(Method.java:515)
02-21 18:56:42.596: E/AndroidRuntime(15781): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:827)
02-21 18:56:42.596: E/AndroidRuntime(15781): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:643)
02-21 18:56:42.596: E/AndroidRuntime(15781): at dalvik.system.NativeStart.main(Native Method)
02-21 18:56:42.596: E/AndroidRuntime(15781): Caused by: android.view.InflateException: Binary XML file line #36: Error inflating class fragment
02-21 18:56:42.596: E/AndroidRuntime(15781): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:713)
02-21 18:56:42.596: E/AndroidRuntime(15781): at android.view.LayoutInflater.rInflate(LayoutInflater.java:755)
02-21 18:56:42.596: E/AndroidRuntime(15781): at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
02-21 18:56:42.596: E/AndroidRuntime(15781): at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
02-21 18:56:42.596: E/AndroidRuntime(15781): at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
02-21 18:56:42.596: E/AndroidRuntime(15781): at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:256)
02-21 18:56:42.596: E/AndroidRuntime(15781): at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:109)
02-21 18:56:42.596: E/AndroidRuntime(15781): at com.eureka4.studentdictionary.activity.MainActivity.onCreate(MainActivity.java:25)
02-21 18:56:42.596: E/AndroidRuntime(15781): at android.app.Activity.performCreate(Activity.java:5231)
02-21 18:56:42.596: E/AndroidRuntime(15781): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1090)
02-21 18:56:42.596: E/AndroidRuntime(15781): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159)
02-21 18:56:42.596: E/AndroidRuntime(15781): ... 11 more
02-21 18:56:42.596: E/AndroidRuntime(15781): Caused by: android.app.Fragment$InstantiationException: Unable to instantiate fragment com.eureka4.studentdictionary.FragmentDrawer: make sure class name exists, is public, and has an empty constructor that is public
02-21 18:56:42.596: E/AndroidRuntime(15781): at android.app.Fragment.instantiate(Fragment.java:597)
02-21 18:56:42.596: E/AndroidRuntime(15781): at android.app.Fragment.instantiate(Fragment.java:561)
02-21 18:56:42.596: E/AndroidRuntime(15781): at android.app.Activity.onCreateView(Activity.java:4778)
02-21 18:56:42.596: E/AndroidRuntime(15781): at android.support.v4.app.BaseFragmentActivityHoneycomb.onCreateView(BaseFragmentActivityHoneycomb.java:34)
02-21 18:56:42.596: E/AndroidRuntime(15781): at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:79)
02-21 18:56:42.596: E/AndroidRuntime(15781): at com.eureka4.studentdictionary.activity.MainActivity.onCreateView(MainActivity.java:1)
02-21 18:56:42.596: E/AndroidRuntime(15781): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:689)
02-21 18:56:42.596: E/AndroidRuntime(15781): ... 21 more
02-21 18:56:42.596: E/AndroidRuntime(15781): Caused by: java.lang.ClassNotFoundException: Didn't find class "com.eureka4.studentdictionary.FragmentDrawer" on path: DexPathList[[zip file "/data/app/com.eureka4.studentdictionary-2.apk"],nativeLibraryDirectories=[/data/app-lib/com.eureka4.studentdictionary-2, /system/lib, /system/lib/arm, /data/downloads]]
02-21 18:56:42.596: E/AndroidRuntime(15781): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
02-21 18:56:42.596: E/AndroidRuntime(15781): at java.lang.ClassLoader.loadClass(ClassLoader.java:497)
02-21 18:56:42.596: E/AndroidRuntime(15781): at java.lang.ClassLoader.loadClass(ClassLoader.java:457)
02-21 18:56:42.596: E/AndroidRuntime(15781): at android.app.Fragment.instantiate(Fragment.java:583)
02-21 18:56:42.596: E/AndroidRuntime(15781): ... 27 more
02-21 18:56:42.756: I/AppCompatViewInflater(15794): app:theme is now deprecated. Please move to using android:theme instead.
02-21 18:56:42.756: I/dalvikvm(15794): Could not find method android.content.res.TypedArray.getChangingConfigurations, referenced from method android.support.v7.widget.TintTypedArray.getChangingConfigurations
02-21 18:56:42.786: W/dalvikvm(15794): VFY: unable to resolve virtual method 406: Landroid/content/res/TypedArray;.getChangingConfigurations ()I
02-21 18:56:42.786: D/dalvikvm(15794): VFY: replacing opcode 0x6e at 0x0002
02-21 18:56:42.786: I/dalvikvm(15794): Could not find method android.content.res.TypedArray.getType, referenced from method android.support.v7.widget.TintTypedArray.getType
02-21 18:56:42.786: W/dalvikvm(15794): VFY: unable to resolve virtual method 428: Landroid/content/res/TypedArray;.getType (I)I
02-21 18:56:42.786: D/dalvikvm(15794): VFY: replacing opcode 0x6e at 0x0002
02-21 18:56:42.786: D/AndroidRuntime(15794): Shutting down VM
02-21 18:56:42.786: W/dalvikvm(15794): threadid=1: thread exiting with uncaught exception (group=0x55e05b20)
02-21 18:56:42.786: D/AndroidRuntime(15794): procName from cmdline: com.eureka4.studentdictionary
02-21 18:56:42.786: E/AndroidRuntime(15794): in writeCrashedAppName, pkgName :com.eureka4.studentdictionary
02-21 18:56:42.786: D/AndroidRuntime(15794): file written successfully with content: com.eureka4.studentdictionary StringBuffer : ;com.eureka4.studentdictionary
package com.eureka4.studentdictionary;
import java.util.ArrayList;
import java.util.List;
import android.content.Context;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.Toolbar;
import android.view.GestureDetector;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import com.eureka4.studentdictionary.R;
public class FragmentDrawer extends Fragment {
private static String TAG = FragmentDrawer.class.getSimpleName();
private RecyclerView recyclerView;
private ActionBarDrawerToggle mDrawerToggle;
private DrawerLayout mDrawerLayout;
private NavigationDrawerAdapter adapter;
private View containerView;
private static String[] titles = null;
private FragmentDrawerListener drawerListener;
public FragmentDrawer() {
}
public void setDrawerListener(FragmentDrawerListener listener) {
this.drawerListener = listener;
}
public static List<NavDrawerItem> getData() {
List<NavDrawerItem> data = new ArrayList<>();
// preparing navigation drawer items
for (int i = 0; i < titles.length; i++) {
NavDrawerItem navItem = new NavDrawerItem();
navItem.setTitle(titles[i]);
data.add(navItem);
}
return data;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// drawer labels
titles = getActivity().getResources().getStringArray(R.array.nav_drawer_labels);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflating view layout
View layout = inflater.inflate(R.layout.fragment_navigation_drawer, container, false);
recyclerView = (RecyclerView) layout.findViewById(R.id.drawerList);
adapter = new NavigationDrawerAdapter(getActivity(), getData());
recyclerView.setAdapter(adapter);
recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
recyclerView.addOnItemTouchListener(new RecyclerTouchListener(getActivity(), recyclerView, new ClickListener() {
@Override
public void onClick(View view, int position) {
drawerListener.onDrawerItemSelected(view, position);
mDrawerLayout.closeDrawer(containerView);
}
@Override
public void onLongClick(View view, int position) {
}
}));
return layout;
}
public void setUp(int fragmentId, DrawerLayout drawerLayout, final Toolbar toolbar) {
containerView = getActivity().findViewById(fragmentId);
mDrawerLayout = drawerLayout;
mDrawerToggle = new ActionBarDrawerToggle(getActivity(), drawerLayout, toolbar, R.string.drawer_open, R.string.drawer_close) {
@Override
public void onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
getActivity().invalidateOptionsMenu();
}
@Override
public void onDrawerClosed(View drawerView) {
super.onDrawerClosed(drawerView);
getActivity().invalidateOptionsMenu();
}
@Override
public void onDrawerSlide(View drawerView, float slideOffset) {
super.onDrawerSlide(drawerView, slideOffset);
toolbar.setAlpha(1 - slideOffset / 2);
}
};
mDrawerLayout.setDrawerListener(mDrawerToggle);
mDrawerLayout.post(new Runnable() {
@Override
public void run() {
mDrawerToggle.syncState();
}
});
}
public static interface ClickListener {
public void onClick(View view, int position);
public void onLongClick(View view, int position);
}
static class RecyclerTouchListener implements RecyclerView.OnItemTouchListener {
private GestureDetector gestureDetector;
private ClickListener clickListener;
public RecyclerTouchListener(Context context, final RecyclerView recyclerView, final ClickListener clickListener) {
this.clickListener = clickListener;
gestureDetector = new GestureDetector(context, new GestureDetector.SimpleOnGestureListener() {
@Override
public boolean onSingleTapUp(MotionEvent e) {
return true;
}
@SuppressWarnings("deprecation")
@Override
public void onLongPress(MotionEvent e) {
View child = recyclerView.findChildViewUnder(e.getX(), e.getY());
if (child != null && clickListener != null) {
clickListener.onLongClick(child, recyclerView.getChildPosition(child));
}
}
});
}
@SuppressWarnings("deprecation")
@Override
public boolean onInterceptTouchEvent(RecyclerView rv, MotionEvent e) {
View child = rv.findChildViewUnder(e.getX(), e.getY());
if (child != null && clickListener != null && gestureDetector.onTouchEvent(e)) {
clickListener.onClick(child, rv.getChildPosition(child));
}
return false;
}
@Override
public void onTouchEvent(RecyclerView rv, MotionEvent e) {
}
@Override
public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {
}
}
public interface FragmentDrawerListener {
public void onDrawerItemSelected(View view, int position);
}
}
最佳答案
你的问题是:
02-21 18:56:42.596: E/AndroidRuntime(15781): Caused by: android.view.InflateException: Binary XML file line #36: Error inflating class fragment
...二进制 XML 文件第 36 行...
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.eureka4.studentdictionary.FragmentDrawer"
顺便说一句,我推荐你使用
GenyMotion而不是 BlueStacks。
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我正在使用我的 FB 应用创建群组并邀请用户加入我的应用群组,第一次一切正常。当我尝试创建另一个组时,出现以下错误: {"(OAuthException - #4009) (#4009) 在有更多用户
我们正在开发一款类似于“会说话的本”应用程序的 child 应用程序。它包含大量用于交互式动画的 JPEG 图像序列。 问题是动画在 iPad Air 上播放正常,但在 iPad 2 上播放缓慢或滞后
我关注 clojure 一段时间了,它的一些功能非常令人兴奋(持久数据结构、函数式方法、不可变状态)。然而,由于我仍在学习,我想了解如何在实际场景中应用,证明其好处,然后演化并应用于更复杂的问题。即,
我开发了一个仅使用挪威语的应用程序。该应用程序不使用本地化,因为它应该仅以一种语言(挪威语)显示。但是,我已在 Info.plist 文件中将“本地化 native 开发区域”设置为“no”。我还使用
读完 Anthony's response 后上a style-related parser question ,我试图说服自己编写单体解析器仍然可以相当紧凑。 所以而不是 reference ::
multicore 库中是否有类似 sapply 的东西?还是我必须 unlist(mclapply(..)) 才能实现这一点? 如果它不存在:推理是什么? 提前致谢,如果这是一个愚蠢的问题,我们深表
我喜欢在窗口中弹出结果,以便更容易查看和查找(例如,它们不会随着控制台继续滚动而丢失)。一种方法是使用 sink() 和 file.show()。例如: y <- rnorm(100); x <- r
我有一个如下所示的 spring mvc Controller @RequestMapping(value="/new", method=RequestMethod.POST) public Stri
我正在阅读 StructureMap关于依赖注入(inject),首先有两部分初始化映射,具体类类型的接口(interface),另一部分只是实例化(请求实例)。 第一部分需要配置和设置,这是在 Bo
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