我想在mainActivity中使用灵活的ui。当我在模拟器日志上运行应用程序时显示错误：
android.view.InflateException：二进制XML文件行＃50：二进制XML文件行＃50：错误膨胀类片段。
mainActivity
public class ParentSpaceMainActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener, GoogleApiClient.OnConnectionFailedListener,ChildHomeworkList.Callbacks, ChildHomeworkAdd.Callbacks , ChildHomeworkUpdate.Callbacks {
private ChildHomeworkList mChildHomeworkList = new ChildHomeworkList();
private ChildHomeworkAdd mChildHomeworkAdd = new ChildHomeworkAdd();
//Constants
private static final String TAG = ParentSpaceMainActivity.class.getSimpleName();
private static final int RC_SIGN_IN = 9001;
// We instantiate just one time fragments during the life of the activity.
FragmentManager fm = getSupportFragmentManager();
FragmentTransaction ft; // = fm.beginTransaction();
Fragment mFragment = null;
Fragment mHomeworkList=null;
Fragment mFragmentListChild = null;
Fragment mFragmentChat = null;
Fragment mFragmentMyAccount = null;
Fragment mFragmentMyFamily = null;
private DatabaseReference mRef;
private FirebaseAuth mFirebaseAuth;
private FirebaseUser mFirebaseUser;
private DatabaseReference mFirebaseDatabaseReference;
private OnDisconnect onDisconnectRef;
private FirebaseAuth.AuthStateListener mAuthListener;
private GoogleApiClient mGoogleApiClient;
private static int alreadyLog = 0;
private TextView nomNavHeader;
public String playMsgId;
private Button home;
private static final int PLAY_SERVICES_RESOLUTION_REQUEST = 9000;
private BroadcastReceiver mRegistrationBroadcastReceiver;
private boolean isMobile = false;
@BindView(R.id.backgroundView1)
ImageView mBack1;
@BindView(R.id.backgroundView2)
ImageView mBack2;
private ValueAnimator animator;
private float mProgressValue;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if(getResources().getBoolean(R.bool.portrait_only)){
isMobile = true;
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
}
else
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_SENSOR_LANDSCAPE);
setContentView(R.layout.parents_main_space);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
ButterKnife.bind(this);
//FirebaseCrash.report(new Exception("My first Android non-fatal error"));
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.addDrawerListener(toggle);
toggle.syncState();
//po
SharedPreferenceHelper sharedPreferenceHelper1 = new SharedPreferenceHelper(getApplicationContext());
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
View navHeaderView = navigationView.inflateHeaderView(R.layout.nav_header_main);
nomNavHeader = (TextView) navHeaderView.findViewById(R.id.UserName_nav_header);
nomNavHeader.setText(sharedPreferenceHelper1.getSharedPreference().getString(KEY.FIRST_NAME,"DEFAULT"));
}
@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(MenuItem item) {
int id = item.getItemId();
mFragment = null;
if (id == R.id.nav_manage) {
getSupportActionBar().setTitle("Edukily");
mFragment = mFragmentChat;
fm.beginTransaction()
.remove(mFragmentListChild).commit();
} else if (id == R.id.nav_gallery) {
fm.beginTransaction()
.remove(mFragmentChat).commit();
if (mFragmentListChild == null)
setupFragmentListChild();
mFragment=mFragmentListChild;
} else if (id == R.id.nav_slideshow) {
ParentSpaceListChild l =new ParentSpaceListChild();
fm.beginTransaction().replace(R.id.drawer_layout,l ).commit();
} else if (id == R.id.nav_camera) {
// Handle the camera action
resetIfLogin();
} else if (id == R.id.nav_share) {
if (mFragmentMyAccount == null)
setupFragmentMyAccount();
getSupportActionBar().setTitle(R.string.my_account);
mFragment = mFragmentMyAccount;
} else if (id == R.id.nav_send) {
if (mFragmentMyFamily == null)
setupFragmentMyFamily();
getSupportActionBar().setTitle(R.string.my_family);
mFragment = mFragmentMyFamily;
}
if (mFragment != null) {
fm.beginTransaction()
.replace(R.id.root_frame_parents, mFragment).commit();
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return false;
}
}
mainActivity.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:openDrawer="start"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true">
<include
layout="@layout/app_bar_main"
android:layout_width="match_parent"
android:background="#FFFFFF"
android:layout_height="match_parent" />
<android.support.design.widget.NavigationView
android:id="@+id/nav_view"
android:background="#FFFFFF"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"
app:menu="@menu/activity_main_drawer" />
<fragment
android:layout_width="0dp"
android:layout_height="match_parent"
android:name="com.edukily.fragments.parents.ParentSpaceListChild"
android:id="@+id/names_fragment"
android:layout_weight="1"
tools:layout="@layout/fragment_parents_list_child" />
</android.support.v4.widget.DrawerLayout>
logcut
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.edukily, PID: 8747
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.edukily/com.edukily.activities.ParentSpace.ParentSpaceMainActivity}: android.view.InflateException: Binary XML file line #50: Binary XML file line #50: Error inflating class fragment
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Caused by: android.view.InflateException: Binary XML file line #50: Binary XML file line #50: Error inflating class fragment
at android.view.LayoutInflater.inflate(LayoutInflater.java:539)
at android.view.LayoutInflater.inflate(LayoutInflater.java:423)
at android.view.LayoutInflater.inflate(LayoutInflater.java:374)
at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:284)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140)
at com.edukily.activities.ParentSpace.ParentSpaceMainActivity.onCreate(ParentSpaceMainActivity.java:164)
at android.app.Activity.performCreate(Activity.java:6237)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Caused by: android.view.InflateException: Binary XML file line #50: Error inflating class fragment
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:782)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:835)
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:798)
at android.view.LayoutInflater.inflate(LayoutInflater.java:515)
at android.view.LayoutInflater.inflate(LayoutInflater.java:423)
at android.view.LayoutInflater.inflate(LayoutInflater.java:374)
at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:284)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140)
at com.edukily.activities.ParentSpace.ParentSpaceMainActivity.onCreate(ParentSpaceMainActivity.java:164)
at android.app.Activity.performCreate(Activity.java:6237)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Caused by: java.lang.IllegalStateException: Required view 'backgroundView1' with ID 2131689740 for field 'mBack1' was not found. If this view is optional add '@Nullable' (fields) or '@Optional' (methods) annotation.
at butterknife.internal.Finder.findRequiredView(Finder.java:62)
at butterknife.internal.Finder.findRequiredViewAsType(Finder.java:74)
at com.edukily.activities.ParentSpace.ParentSpaceMainActivity_ViewBinding.<init>(ParentSpaceMainActivity_ViewBinding.java:18)
at com.edukily.activities.ParentSpace.ParentSpaceMainActivity_ViewBinder.bind(ParentSpaceMainActivity_ViewBinder.java:13)
at com.edukily.activities.ParentSpace.ParentSpaceMainActivity_ViewBinder.bind(ParentSpaceMainActivity_ViewBinder.java:10)
at butterknife.ButterKnife.bind(ButterKnife.java:125)
at com.edukily.fragments.parents.ParentSpaceListChild.onCreateView(ParentSpaceListChild.java:160)
at android.support.v4.app.Fragment.performCreateView(Fragment.java:2080)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1065)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1268)
at android.support.v4.app.FragmentManagerImpl.addFragment(FragmentManager.java:1370)
at android.support.v4.app.FragmentManagerImpl.onCreateView(FragmentManager.java:2415)
at android.support.v4.app.FragmentController.onCreateView(FragmentController.java:120)
at android.support.v4.app.FragmentActivity.dispatchFragmentsOnCreateView(FragmentActivity.java:376)
at android.support.v4.app.BaseFragmentActivityHoneycomb.onCreateView(BaseFragmentActivityHoneycomb.java:33)
at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:75)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:754)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:835)
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:798)
at android.view.LayoutInflater.inflate(LayoutInflater.java:515)
at android.view.LayoutInflater.inflate(LayoutInflater.java:423)
at android.view.LayoutInflater.inflate(LayoutInflater.java:374)
at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:284)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140)
at com.edukily.activities.ParentSpace.ParentSpaceMainActivity.onCreate(ParentSpaceMainActivity.java:164)
at android.app.Activity.performCreate(Activity.java:6237)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
答案 0 :(得分：0)
在xml布局中尝试：
<fragment
android:layout_width="0dp"
android:layout_height="match_parent"
class="com.edukily.fragments.parents.ParentSpaceListChild"
android:id="@+id/names_fragment"
android:layout_weight="1"
tools:layout="@layout/fragment_parents_list_child" />
答案 1 :(得分：0)
在android.support.design.widget.NavigationView中生成错误它不支持较旧的Android版本，因此应用程序因上述错误而崩溃。
项目中有2个drawable.xml文件生成。当你创建drawable
时文件在drawable.xml（v.21）中，它不支持较旧的Android版本。
不要将可绘制的xml文件放在drawable.xml（v.21）中。
从此文件夹中删除所有xml文件并将其放入drawable.xml