修复java.lang.ClassCastException在Android的抽屉式导航抽屉式、lang、java、Android
2023-09-07 00:43:05
作者：不狸不气的。爱你
我创建的，由抽屉式导航的机器人工作室的Android应用程序。我收到称为错误的java.lang.ClassCastException：matrialdesign.practice.com.materialdesignpractice.MaterialDesign@41cdeb78必须实现OnFragmentInteractionListener 在matrialdesign.practice.com.materialdesignpractice.navigatoin_drawer.onAttach(navigatoin_drawer.java:90)\"
请帮我解决它，我是新来的Android导航抽屉里，这是我的主要活动
包matrialdesign.practice.com.materialdesignpractice;进口android.content.Intent;进口android.support.v4.widget.DrawerLayout;进口android.support.v7.app.ActionBarActivity;进口android.os.Bundle;进口android.support.v7.widget.Toolbar;进口android.view.Menu;进口android.view.MenuItem;公共类MaterialDesign扩展ActionBarActivity{ 工具栏tool_bar_widget; @覆盖 保护无效的onCreate（捆绑savedInstanceState）{ super.onCreate（savedInstanceState）; 的setContentView（R.layout.layout_material_design）; tool_bar_widget =（工具栏）findViewById（R.id.toolbar）; setSupportActionBar（tool_bar_widget）; getSupportActionBar（）setDisplayShowHomeEnabled（真）。 。navigatoin_drawer导航=（navigatoin_drawer）getFragmentManager（）findFragmentById（R.id.fragment）; navigation.setup（（DrawerLayout）findViewById（R.id.widget_drawer_layout），tool_bar_widget）; } @覆盖 公共布尔onCreateOptionsMenu（菜单菜单）{ //充气菜单;如果是present这增加了项目操作栏。 。getMenuInflater（）膨胀（R.menu.menu_material_design，菜单）; 返回true; } @覆盖 公共布尔onOptionsItemSelected（菜单项项）{ //处理动作栏项目点击这里。操作栏会 //自动处理上点击主页/向上按钮，只要 //你在AndroidManifest.xml中指定一个父活动。 INT ID = item.getItemId（）; // noinspection SimplifiableIfStatement 如果（ID == R.id.action_settings）{ 返回true; } 如果（ID == R.id.custom_nav_icon） { 意图导航=新意图（MaterialDesign.this，Navigationactivity.class）; startActivity（导航）; } 返回super.onOptionsItemSelected（项目）; }} 这是我的导航抽屉活动：
包matrialdesign.practice.com.materialdesignpractice;进口android.app.Activity;进口android.net.Uri;进口android.os.Bundle;进口android.app.Fragment;进口android.support.v4.app.FragmentActivity;进口android.support.v4.widget.DrawerLayout;进口android.support.v7.app.ActionBarDrawerToggle;进口android.support.v7.widget.Toolbar;进口android.view.LayoutInflater;进口android.view.View;进口android.view.ViewGroup;/ ** *一个简单的{@link片段}子类。 *包含此片段必须实现活动 * {@link navigatoin_drawer.OnFragmentInteractionListener}接口 *处理交互事件。 *使用{@link navigatoin_drawer＃}的newInstance工厂方法 *创建该片段的一个实例。 * /公共类navigatoin_drawer扩展片段{ // TODO：重命名参数的参数，选择匹配的名字 //片段初始化参数，例如ARG_ITEM_NUMBER 私人ActionBarDrawerToggle mDrawer_toogle; 公共DrawerLayout mDrawer_layout; 私有静态最后弦乐ARG_PARAM1 =参数1; 私有静态最后弦乐ARG_PARAM2 =参数2; // TODO：重命名和更改类型的参数 私人字符串mParam1; 私人字符串mParam2; 私人OnFragmentInteractionListener mListener; / ** *使用此工厂方法来创建新实例 *使用提供的参数，这个片段。 * * @参数参数1参数1。 * @参数参数2参数2。 返回：片段navigatoin_drawer的一个新实例。 * / // TODO：重命名和更改类型和参数个数 公共静态的newInstance navigatoin_drawer（字符串参数1，字符串参数2）{ navigatoin_drawer片段=新navigatoin_drawer（）; 捆绑ARGS =新包（）; args.putString（ARG_PARAM1，参数1）; args.putString（ARG_PARAM2，参数2）; fragment.setArguments（参数）; 返回片段; } 公共navigatoin_drawer（）{ //必需的空公共构造 } @覆盖 公共无效的onCreate（捆绑savedInstanceState）{ super.onCreate（savedInstanceState）; 如果（getArguments（）！= NULL）{ mParam1 = getArguments（）的getString（ARG_PARAM1）。 mParam2 = getArguments（）的getString（ARG_PARAM2）。 } } @覆盖 公共查看onCreateView（LayoutInflater充气器，容器的ViewGroup， 捆绑savedInstanceState）{ //充气的布局该片段 返回inflater.inflate（R.layout.fragment_navigatoin_drawer，集装箱，FALSE）; } // TODO：重命名方法，更新参数和勾法将UI事件 公共无效onButton pressed（URI URI）{ 如果（mListener！= NULL）{ mListener.onFragmentInteraction（URI）; } } @覆盖 公共无效onAttach（活动活动）{ super.onAttach（活动）; 尝试{ mListener =（OnFragmentInteractionListener）活性; }赶上（抛出ClassCastException E）{ 抛出新ClassCastException异常（activity.toString（） +必须实现OnFragmentInteractionListener）; } } @覆盖 公共无效onDetach（）{ super.onDetach（）; mListener = NULL; } 公共无效设置（DrawerLayout drawerlayout，工具栏tool_bar） { mDrawer_layout = drawerlayout; mDrawer_toogle =新ActionBarDrawerToggle（getActivity（），drawerlayout，tool_bar，R.string.draweropen，R.string.drawerclose）{ @覆盖 公共无效onDrawerOpened（查看drawerView）{ super.onDrawerOpened（drawerView）; } @覆盖 公共无效onDrawerClosed（查看drawerView）{ super.onDrawerClosed（drawerView）; } }; mDrawer_layout.setDrawerListener（mDrawer_toogle）; } / ** *此接口必须由包含此活动的实施 *片段，以允许在该片段的相互作用来传达 *中包含的活性和潜在的其它片段 *活动。 * LT; P /＆GT; *请参阅Android的培训课＆LT; A HREF = *http://developer.android.com/training/basics/fragments/communicating.html *＆gt;在其他片段＆所述通信; / A＆GT;了解更多信息。 * / 公共接口OnFragmentInteractionListener { // TODO：更新参数类型和名称 公共无效onFragmentInteraction（URI URI）; }} 
这是我的main_activity_layout：
＆LT; android.support.v4.widget.DrawerLayout的xmlns：机器人=http://schemas.android.com/apk/res/android 机器人：ID =@ + ID / widget_drawer_layout 的xmlns：工具=http://schemas.android.com/tools 的xmlns：程序=http://schemas.android.com/apk/res-auto 机器人：layout_width =match_parent 机器人：layout_height =match_parent＆GT; ＆LT;包括 机器人：ID =@ + ID /工具栏 布局=@布局/工具栏 机器人：layout_height =WRAP_CONTENT 机器人：layout_width =match_parent＆GT; ＆LT; / - 包括GT;＆LT; RelativeLayout的 机器人：layout_width =match_parent 机器人：layout_height =match_parent 工具：上下文=matrialdesign.practice.com.materialdesignpractice.MaterialDesign＆GT;＆LT; / RelativeLayout的＆GT; ＆LT;片段 机器人：ID =@ + ID /片段 机器人：layout_width =280dp 机器人：layout_height =match_parent 机器人：layout_gravity =开始 机器人：名字=matrialdesign.practice.com.materialdesignpractice.navigatoin_drawer 工具：布局=@布局/ fragment_navigatoin_drawer/＆GT; 应用：布局=@布局/ fragment_navigatoin_drawer/＆GT;＆LT; /android.support.v4.widget.DrawerLayout> 这是我的navigation_drawer_xml：
＆LT;的RelativeLayout的xmlns：机器人=http://schemas.android.com/apk/res/android 的xmlns：工具=http://schemas.android.com/tools 机器人：layout_width =match_parent 机器人：layout_height =match_parent 工具：上下文=matrialdesign.practice.com.materialdesignpractice.navigatoin_drawer＆GT; ＆LT; - TODO：更新空白片段布局 - ＆GT; ＆LT;的TextView 机器人：layout_width =match_parent 机器人：layout_height =match_parent 机器人：文字=@字符串/ hello_blank_fragment/＆GT;＆LT; / RelativeLayout的＆GT;＆LT;的RelativeLayout的xmlns：机器人=http://schemas.android.com/apk/res/android的xmlns：工具=http://schemas.android.com/tools机器人：layout_width =match_parent机器人：layout_height =match_parent工具：上下文=matrialdesign.practice.com.materialdesignpractice.navigatoin_drawer＆GT;＆LT; - TODO：更新空白片段布局 - ＆GT;＆LT;的TextView 机器人：layout_width =match_parent 机器人：layout_height =match_parent 机器人：文字=@字符串/ hello_blank_fragment/＆GT;＆LT; / RelativeLayout的＆GT; 这是我的logcat的：
16 03-11：32：27.018 9974-9974 / matrialdesign.practice.com.materialdesignpractice E / AndroidRuntime：致命异常：主要 工艺：matrialdesign.practice.com.materialdesignpractice，PID：9974 了java.lang.RuntimeException：无法启动活动ComponentInfo{matrialdesign.practice.com.materialdesignpractice/matrialdesign.practice.com.materialdesignpractice.MaterialDesign}: android.view.InflateException：二进制XML文件行＃21：错误充气类片段 在android.app.ActivityThread.performLaunchActivity（ActivityThread.java:2338） 在android.app.ActivityThread.handleLaunchActivity（ActivityThread.java:2390） 在android.app.ActivityThread.access $ 800（ActivityThread.java:151） 在android.app.ActivityThread $ H.handleMessage（ActivityThread.java:1321） 在android.os.Handler.dispatchMessage（Handler.java:110） 在android.os.Looper.loop（Looper.java:193） 在android.app.ActivityThread.main（ActivityThread.java:5292） 在java.lang.reflect.Method.invokeNative（本机方法） 在java.lang.reflect.Method.invoke（Method.java:515） 在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run（ZygoteInit.java:824） 在com.android.internal.os.ZygoteInit.main（ZygoteInit.java:640） 在dalvik.system.NativeStart.main（本机方法） android.view.InflateException：引起二进制XML文件行＃21：错误充气类片段 在android.view.LayoutInflater.createViewFromTag（LayoutInflater.java:713） 在android.view.LayoutInflater.rInflate（LayoutInflater.java:755） 在android.view.LayoutInflater.inflate（LayoutInflater.java:492） 在android.view.LayoutInflater.inflate（LayoutInflater.java:397） 在android.view.LayoutInflater.inflate（LayoutInflater.java:353） 在android.support.v7.app.ActionBarActivityDelegateBase.setContentView(ActionBarActivityDelegateBase.java:228) 在android.support.v7.app.ActionBarActivity.setContentView（ActionBarActivity.java:102） 在matrialdesign.practice.com.materialdesignpractice.MaterialDesign.onCreate（MaterialDesign.java:18） 在android.app.Activity.performCreate（Activity.java:5264） 在android.app.Instrumentation.callActivityOnCreate（Instrumentation.java:1088） 在android.app.ActivityThread.performLaunchActivity（ActivityThread.java:2302）在android.app.ActivityThread.handleLaunchActivity（ActivityThread.java:2390）在android.app.ActivityThread.access $ 800（ActivityThread.java:151）在android.app.ActivityThread $ H.handleMessage（ActivityThread.java:1321）在android.os.Handler.dispatchMessage（Handler.java:110）在android.os.Looper.loop（Looper.java:193）在android.app.ActivityThread.main（ActivityThread.java:5292）在java.lang.reflect.Method.invokeNative（本机方法）在java.lang.reflect.Method.invoke（Method.java:515）在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run（ZygoteInit.java:824）在com.android.internal.os.ZygoteInit.main（ZygoteInit.java:640）在dalvik.system.NativeStart.main（本机方法） java.lang.ClassCastException：引起matrialdesign.practice.com.materialdesignpractice.MaterialDesign@41ce3390必须实现OnFragmentInteractionListener 在matrialdesign.practice.com.materialdesignpractice.navigatoin_drawer.onAttach(navigatoin_drawer.java:90) 在android.app.FragmentManagerImpl.moveToState（FragmentManager.java:849） 在android.app.FragmentManagerImpl.moveToState（FragmentManager.java:1040） 在android.app.FragmentManagerImpl.addFragment（FragmentManager.java:1142） 在android.app.Activity.onCreateView（Activity.java:4819） 在android.view.LayoutInflater.createViewFromTag（LayoutInflater.java:689）在android.view.LayoutInflater.rInflate（LayoutInflater.java:755）在android.view.LayoutInflater.inflate（LayoutInflater.java:492）在android.view.LayoutInflater.inflate（LayoutInflater.java:397）在android.view.LayoutInflater.inflate（LayoutInflater.java:353） 在android.support.v7.app.ActionBarActivityDelegateBase.setContentView(ActionBarActivityDelegateBase.java:228)在android.support.v7.app.ActionBarActivity.setContentView（ActionBarActivity.java:102）在matrialdesign.practice.com.materialdesignpractice.MaterialDesign.onCreate（MaterialDesign.java:18）在android.app.Activity.performCreate（Activity.java:5264）在android.app.Instrumentation.callActivityOnCreate（Instrumentation.java:1088）在android.app.ActivityThread.performLaunchActivity（ActivityThread.java:2302）在android.app.ActivityThread.handleLaunchActivity（ActivityThread.java:2390）在android.app.ActivityThread.access $ 800（ActivityThread.java:151）在android.app.ActivityThread $ H.handleMessage（ActivityThread.java:1321）在android.os.Handler.dispatchMessage（Handler.java:110）在android.os.Looper.loop（Looper.java:193）在android.app.ActivityThread.main（ActivityThread.java:5292）在java.lang.reflect.Method.invokeNative（本机方法）在java.lang.reflect.Method.invoke（Method.java:515）在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run（ZygoteInit.java:824）在com.android.internal.os.ZygoteInit.main（ZygoteInit.java:640）在dalvik.system.NativeStart.main（本机方法） 解决方案
在哪里片段定义？您正在使用中，需要一些标记库定义布局片段标记。对吧？
我认为你应该使用抽屉布局内的FrameLayout显示的抽屉里。
喜欢的东西以下可以使用
＆LT; android.support.v4.widget.DrawerLayout 的xmlns：机器人=http://schemas.android.com/apk/res/android 机器人：ID =@ + ID / drawer_layout 机器人：layout_width =match_parent 机器人：layout_height =match_parent 机器人：layout_below =@ + ID / main_toolbar＆GT; ＆LT;！ - 的主要内容视图 - ＆GT; ＆LT;的FrameLayout 机器人：ID =@ + ID /容器 机器人：layout_width =match_parent 机器人：layout_height =match_parent/＆GT; ＆LT;！ - 左导航抽屉 - ＆GT; ＆LT; ListView控件 机器人：ID =@ + ID / left_drawer 机器人：layout_width =match_parent 机器人：layout_height =match_parent 机器人：layout_gravity =左 机器人：阿尔法=75 机器人：背景=＃111 机器人：choiceMode =singleChoice 机器人：分=@机器人：彩色/透明 机器人：dividerHeight =12dp 机器人：paddingTop =8DP/＆GT; ＆LT; /android.support.v4.widget.DrawerLayout> I am creating an android application in android studio that consists of navigation drawer. I am getting an error called "java.lang.ClassCastException: matrialdesign.practice.com.materialdesignpractice.MaterialDesign@41cdeb78 must implement OnFragmentInteractionListener at matrialdesign.practice.com.materialdesignpractice.navigatoin_drawer.onAttach(navigatoin_drawer.java:90)"
Please help me to solve it i am new to android navigation drawer this is my main activity
package matrialdesign.practice.com.materialdesignpractice;
import android.content.Intent;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
public class MaterialDesign extends ActionBarActivity
{
Toolbar tool_bar_widget;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.layout_material_design);
tool_bar_widget = (Toolbar)findViewById(R.id.toolbar);
setSupportActionBar(tool_bar_widget);
getSupportActionBar().setDisplayShowHomeEnabled(true);
navigatoin_drawer navigation = (navigatoin_drawer)getFragmentManager().findFragmentById(R.id.fragment);
navigation.setup((DrawerLayout)findViewById(R.id.widget_drawer_layout),tool_bar_widget);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_material_design, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
if(id == R.id.custom_nav_icon)
{
Intent navigation = new Intent(MaterialDesign.this,Navigationactivity.class);
startActivity(navigation);
}
return super.onOptionsItemSelected(item);
}
}
This is my navigation drawer activity:
package matrialdesign.practice.com.materialdesignpractice;
import android.app.Activity;
import android.net.Uri;
import android.os.Bundle;
import android.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.widget.Toolbar;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
/**
* A simple {@link Fragment} subclass.
* Activities that contain this fragment must implement the
* {@link navigatoin_drawer.OnFragmentInteractionListener} interface
* to handle interaction events.
* Use the {@link navigatoin_drawer#newInstance} factory method to
* create an instance of this fragment.
*/
public class navigatoin_drawer extends Fragment
{
// TODO: Rename parameter arguments, choose names that match
// the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
private ActionBarDrawerToggle mDrawer_toogle;
public DrawerLayout mDrawer_layout;
private static final String ARG_PARAM1 = "param1";
private static final String ARG_PARAM2 = "param2";
// TODO: Rename and change types of parameters
private String mParam1;
private String mParam2;
private OnFragmentInteractionListener mListener;
/**
* Use this factory method to create a new instance of
* this fragment using the provided parameters.
*
* @param param1 Parameter 1.
* @param param2 Parameter 2.
* @return A new instance of fragment navigatoin_drawer.
*/
// TODO: Rename and change types and number of parameters
public static navigatoin_drawer newInstance(String param1, String param2) {
navigatoin_drawer fragment = new navigatoin_drawer();
Bundle args = new Bundle();
args.putString(ARG_PARAM1, param1);
args.putString(ARG_PARAM2, param2);
fragment.setArguments(args);
return fragment;
}
public navigatoin_drawer() {
// Required empty public constructor
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments() != null) {
mParam1 = getArguments().getString(ARG_PARAM1);
mParam2 = getArguments().getString(ARG_PARAM2);
}
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_navigatoin_drawer, container, false);
}
// TODO: Rename method, update argument and hook method into UI event
public void onButtonPressed(Uri uri) {
if (mListener != null) {
mListener.onFragmentInteraction(uri);
}
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
try {
mListener = (OnFragmentInteractionListener) activity;
} catch (ClassCastException e) {
throw new ClassCastException(activity.toString()
+ " must implement OnFragmentInteractionListener");
}
}
@Override
public void onDetach() {
super.onDetach();
mListener = null;
}
public void setup(DrawerLayout drawerlayout,Toolbar tool_bar)
{
mDrawer_layout=drawerlayout;
mDrawer_toogle = new ActionBarDrawerToggle(getActivity(),drawerlayout,tool_bar,R.string.draweropen,R.string.drawerclose){
@Override
public void onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
}
@Override
public void onDrawerClosed(View drawerView) {
super.onDrawerClosed(drawerView);
}
};
mDrawer_layout.setDrawerListener(mDrawer_toogle);
}
/**
* This interface must be implemented by activities that contain this
* fragment to allow an interaction in this fragment to be communicated
* to the activity and potentially other fragments contained in that
* activity.
* <p/>
* See the Android Training lesson <a href=
* "http://developer.android.com/training/basics/fragments/communicating.html"
* >Communicating with Other Fragments</a> for more information.
*/
public interface OnFragmentInteractionListener {
// TODO: Update argument type and name
public void onFragmentInteraction(Uri uri);
}
}
This is my main_activity_layout:
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/widget_drawer_layout"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<include
android:id="@+id/toolbar"
layout="@layout/toolbar"
android:layout_height="wrap_content"
android:layout_width="match_parent">
</include>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="matrialdesign.practice.com.materialdesignpractice.MaterialDesign">
</RelativeLayout>
<fragment
android:id="@+id/fragment"
android:layout_width="280dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:name="matrialdesign.practice.com.materialdesignpractice.navigatoin_drawer"
tools:layout="@layout/fragment_navigatoin_drawer" />
app:layout="@layout/fragment_navigatoin_drawer"/>
</android.support.v4.widget.DrawerLayout>
This is my navigation_drawer_xml:
<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"
tools:context="matrialdesign.practice.com.materialdesignpractice.navigatoin_drawer">
<!-- TODO: Update blank fragment layout -->
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="@string/hello_blank_fragment" />
</RelativeLayout>
<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"
tools:context="matrialdesign.practice.com.materialdesignpractice.navigatoin_drawer">
<!-- TODO: Update blank fragment layout -->
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="@string/hello_blank_fragment" />
</RelativeLayout>
This is my logcat:
03-11 16:32:27.018 9974-9974/matrialdesign.practice.com.materialdesignpractice E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: matrialdesign.practice.com.materialdesignpractice, PID: 9974
java.lang.RuntimeException: Unable to start activity ComponentInfo{matrialdesign.practice.com.materialdesignpractice/matrialdesign.practice.com.materialdesignpractice.MaterialDesign}: android.view.InflateException: Binary XML file line #21: Error inflating class fragment
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2338)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2390)
at android.app.ActivityThread.access$800(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1321)
at android.os.Handler.dispatchMessage(Handler.java:110)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:5292)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:824)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:640)
at dalvik.system.NativeStart.main(Native Method)
Caused by: android.view.InflateException: Binary XML file line #21: Error inflating class fragment
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:713)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:755)
at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
at android.support.v7.app.ActionBarActivityDelegateBase.setContentView(ActionBarActivityDelegateBase.java:228)
at android.support.v7.app.ActionBarActivity.setContentView(ActionBarActivity.java:102)
at matrialdesign.practice.com.materialdesignpractice.MaterialDesign.onCreate(MaterialDesign.java:18)
at android.app.Activity.performCreate(Activity.java:5264)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1088)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2302)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2390)
at android.app.ActivityThread.access$800(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1321)
at android.os.Handler.dispatchMessage(Handler.java:110)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:5292)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:824)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:640)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassCastException: matrialdesign.practice.com.materialdesignpractice.MaterialDesign@41ce3390 must implement OnFragmentInteractionListener
at matrialdesign.practice.com.materialdesignpractice.navigatoin_drawer.onAttach(navigatoin_drawer.java:90)
at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:849)
at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1040)
at android.app.FragmentManagerImpl.addFragment(FragmentManager.java:1142)
at android.app.Activity.onCreateView(Activity.java:4819)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:689)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:755)
at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
at android.support.v7.app.ActionBarActivityDelegateBase.setContentView(ActionBarActivityDelegateBase.java:228)
at android.support.v7.app.ActionBarActivity.setContentView(ActionBarActivity.java:102)
at matrialdesign.practice.com.materialdesignpractice.MaterialDesign.onCreate(MaterialDesign.java:18)
at android.app.Activity.performCreate(Activity.java:5264)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1088)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2302)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2390)
at android.app.ActivityThread.access$800(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1321)
at android.os.Handler.dispatchMessage(Handler.java:110)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:5292)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:824)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:640)
at dalvik.system.NativeStart.main(Native Method)
解决方案
Where is the fragment defined? You are using the fragment tag in the layout which needs some tag lib definition. Right?
I think you should use a framelayout inside the drawer layout to display the drawer.
Something like following you can use
<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"
android:layout_below="@+id/main_toolbar" >
<!-- The main content view -->
<FrameLayout
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<!-- Left navigation drawer -->
<ListView
android:id="@+id/left_drawer"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="left"
android:alpha=".75"
android:background="#111"
android:choiceMode="singleChoice"
android:divider="@android:color/transparent"
android:dividerHeight="12dp"
android:paddingTop="8dp" />
</android.support.v4.widget.DrawerLayout>
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