单击其中一个抽屉菜单后，应用程序停止工作

Question

我正在学习如何使用抽屉来更改不同菜单中的碎片但是当我点击带有脚本的菜单时，“不幸的是，DrawerTest2已停止”

有人可以查看我的代码，看看我做错了吗？

MainActivity.java     

package th.ac.sd.drawertest2;

import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v4.app.FragmentManager;
import android.view.View;
import android.support.design.widget.NavigationView;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;

public class MainActivity extends AppCompatActivity
        implements NavigationView.OnNavigationItemSelectedListener {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
        fab.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
                        .setAction("Action", null).show();
            }
        });

        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();

        NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
        navigationView.setNavigationItemSelectedListener(this);
    }

    @Override
    public void onBackPressed() {
        DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
        if (drawer.isDrawerOpen(GravityCompat.START)) {
            drawer.closeDrawer(GravityCompat.START);
        } else {
            super.onBackPressed();
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, 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;
        }

        return super.onOptionsItemSelected(item);
    }

    @SuppressWarnings("StatementWithEmptyBody")
    @Override
    public boolean onNavigationItemSelected(MenuItem item) {
        // Handle navigation view item clicks here.
        int id = item.getItemId();

        if (id == R.id.nav_camera) {
            SMSFragment smsFragment = new SMSFragment();
            FragmentManager manager = getSupportFragmentManager();
            manager.beginTransaction().replace(R.id.layout_sms, smsFragment, smsFragment.getTag()).commit();
        } else if (id == R.id.nav_gallery)            {

        } else if (id == R.id.nav_slideshow) {

        } else if (id == R.id.nav_manage) {

        } else if (id == R.id.nav_share) {

        } else if (id == R.id.nav_send) {

        }

        DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
        drawer.closeDrawer(GravityCompat.START);
        return true;
    }
}

SMSFragment.java

package th.ac.sd.drawertest2;


import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;


/**
 * A simple {@link Fragment} subclass.
 */
public class SMSFragment extends Fragment {


    public SMSFragment() {
        // Required empty public constructor
    }


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        return inflater.inflate(R.layout.fragment_sm, container, false);
    }

}

activity_main.xml中

<?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">

    <include
        layout="@layout/app_bar_main"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

    <android.support.design.widget.NavigationView
        android:id="@+id/nav_view"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        android:fitsSystemWindows="true"
        app:headerLayout="@layout/nav_header_main"
        app:menu="@menu/activity_main_drawer" />

</android.support.v4.widget.DrawerLayout>

content_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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/content_main"
    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"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"
    tools:context="th.ac.sd.drawertest2.MainActivity"
    tools:showIn="@layout/app_bar_main">

<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Hello World!" />
</RelativeLayout>

fragment_sm.xml （我想要替换content_main.xml的片段）

<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="th.ac.sd.drawertest2.SMSFragment">

    <!-- TODO: Update blank fragment layout -->
    <TextView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:text="@string/hello_blank_fragment"
        android:id="@+id/layout_sms" />

</RelativeLayout>

错误记录（从开始到应用程序崩溃）

01-11 23:51:52.017 1065-1065/? I/art: Not late-enabling -Xcheck:jni (already on)
01-11 23:51:52.073 1065-1065/th.ac.sd.drawertest2 W/System: ClassLoader referenced unknown path: /data/app/th.ac.sd.drawertest2-1/lib/x86
01-11 23:51:52.088 1065-1065/th.ac.sd.drawertest2 I/InstantRun: Instant Run Runtime started. Android package is th.ac.sd.drawertest2, real application class is null.

                                                                [ 01-11 23:51:52.124  1605: 1626 D/         ]
                                                                HostConnection::get() New Host Connection established 0x9c53bd40, tid 1626
01-11 23:51:53.149 1065-1065/th.ac.sd.drawertest2 W/System: ClassLoader referenced unknown path: /data/app/th.ac.sd.drawertest2-1/lib/x86
01-11 23:51:53.276 1065-1065/th.ac.sd.drawertest2 W/art: Before Android 4.1, method android.graphics.PorterDuffColorFilter android.support.graphics.drawable.VectorDrawableCompat.updateTintFilter(android.graphics.PorterDuffColorFilter, android.content.res.ColorStateList, android.graphics.PorterDuff$Mode) would have incorrectly overridden the package-private method in android.graphics.drawable.Drawable
01-11 23:51:53.339 1065-1107/th.ac.sd.drawertest2 D/OpenGLRenderer: Use EGL_SWAP_BEHAVIOR_PRESERVED: true

                                                                    [ 01-11 23:51:53.342  1065: 1065 D/         ]
                                                                    HostConnection::get() New Host Connection established 0xaa23b180, tid 1065


                                                                    [ 01-11 23:51:53.344  1065: 1065 W/         ]
                                                                    Process pipe failed

                                                                    [ 01-11 23:51:53.383  1065: 1107 D/         ]
                                                                    HostConnection::get() New Host Connection established 0xaa23b3c0, tid 1107
01-11 23:51:53.385 1065-1107/th.ac.sd.drawertest2 I/OpenGLRenderer: Initialized EGL, version 1.4
01-11 23:51:53.468 1065-1107/th.ac.sd.drawertest2 E/EGL_emulation: tid 1107: eglSurfaceAttrib(1165): error 0x3009 (EGL_BAD_MATCH)
01-11 23:51:53.468 1065-1107/th.ac.sd.drawertest2 W/OpenGLRenderer: Failed to set EGL_SWAP_BEHAVIOR on surface 0xaaabfbc0, error=EGL_BAD_MATCH
01-11 23:52:04.548 1065-1065/th.ac.sd.drawertest2 W/PathParser: Points are too far apart 4.000000596046461
01-11 23:52:05.428 1065-1065/th.ac.sd.drawertest2 E/FragmentManager: No view found for id 0x7f0c0077 (th.ac.sd.drawertest2:id/layout_sms) for fragment SMSFragment{4b506d #0 id=0x7f0c0077}
01-11 23:52:05.428 1065-1065/th.ac.sd.drawertest2 E/FragmentManager: Activity state:
01-11 23:52:05.428 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:   Local FragmentActivity 575a3e1 State:
01-11 23:52:05.428 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:     mCreated=truemResumed=true mStopped=false mReallyStopped=false
01-11 23:52:05.428 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:     mLoadersStarted=true
01-11 23:52:05.428 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:   Active Fragments in 3e0a4a2:
01-11 23:52:05.428 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:     #0: SMSFragment{4b506d #0 id=0x7f0c0077}
01-11 23:52:05.428 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:       mFragmentId=#7f0c0077 mContainerId=#7f0c0077 mTag=null
01-11 23:52:05.428 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:       mState=1 mIndex=0 mWho=android:fragment:0 mBackStackNesting=0
01-11 23:52:05.428 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:       mAdded=true mRemoving=false mFromLayout=false mInLayout=false
01-11 23:52:05.428 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:       mHidden=false mDetached=false mMenuVisible=true mHasMenu=false
01-11 23:52:05.428 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:       mRetainInstance=false mRetaining=false mUserVisibleHint=true
01-11 23:52:05.428 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:       mFragmentManager=FragmentManager{3e0a4a2 in HostCallbacks{1ba533}}
01-11 23:52:05.428 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:       mHost=android.support.v4.app.FragmentActivity$HostCallbacks@1ba533
01-11 23:52:05.428 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:   Added Fragments:
01-11 23:52:05.428 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:     #0: SMSFragment{4b506d #0 id=0x7f0c0077}
01-11 23:52:05.428 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:   FragmentManager misc state:
01-11 23:52:05.428 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:     mHost=android.support.v4.app.FragmentActivity$HostCallbacks@1ba533
01-11 23:52:05.428 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:     mContainer=android.support.v4.app.FragmentActivity$HostCallbacks@1ba533
01-11 23:52:05.428 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:     mCurState=5 mStateSaved=false mDestroyed=false
01-11 23:52:05.428 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:   View Hierarchy:
01-11 23:52:05.428 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:     com.android.internal.policy.PhoneWindow$DecorView{8d10f0 V.E..... ... 0,0-1440,2560}
01-11 23:52:05.428 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:       android.widget.LinearLayout{d98669 V.E..... ... 0,0-1440,2392}
01-11 23:52:05.428 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:         android.view.ViewStub{1c868ee G.E..... ... 0,0-0,0 #10203a9 android:id/action_mode_bar_stub}
01-11 23:52:05.428 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:         android.widget.FrameLayout{861618f V.E..... ... 0,0-1440,2392}
01-11 23:52:05.428 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:           android.support.v7.widget.FitWindowsLinearLayout{ca4c1c V.E..... ... 0,0-1440,2392 #7f0c0055 app:id/action_bar_root}
01-11 23:52:05.428 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:             android.support.v7.widget.ViewStubCompat{2fb2025 G.E..... ... 0,0-0,0 #7f0c0056 app:id/action_mode_bar_stub}
01-11 23:52:05.428 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:             android.support.v7.widget.ContentFrameLayout{a5625fa V.E..... ... 0,0-1440,2392 #1020002 android:id/content}
01-11 23:52:05.428 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:               android.support.v4.widget.DrawerLayout{f9c87ab VFED.... ... 0,0-1440,2392 #7f0c0069 app:id/drawer_layout}
01-11 23:52:05.428 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                 android.support.design.widget.CoordinatorLayout{3e0e08 V.ED.... ... 0,0-1440,2392}
01-11 23:52:05.428 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                   android.support.design.widget.AppBarLayout{4e299a1 V.E..... ... 0,84-1440,280}
01-11 23:52:05.428 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                     android.support.v7.widget.Toolbar{2d0a7c6 V.E..... ... 0,0-1440,196 #7f0c006b app:id/toolbar}
01-11 23:52:05.429 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                       android.widget.TextView{f19f387 V.ED.... ... 210,51-609,144}
01-11 23:52:05.429 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                       android.widget.ImageButton{7aa02b4 VFED..C. ... 0,0-196,196}
01-11 23:52:05.429 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                       android.support.v7.widget.ActionMenuView{b6e2edd V.E..... ... 1300,0-1440,196}
01-11 23:52:05.429 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                         android.support.v7.widget.ActionMenuPresenter$OverflowMenuButton{c1f7a52 VFED..C. ... 0,14-140,182}
01-11 23:52:05.429 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                   android.widget.RelativeLayout{e184123 V.E..... ... 0,280-1440,2392 #7f0c006d app:id/content_main}
01-11 23:52:05.429 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                     android.support.v7.widget.AppCompatTextView{83e9620 V.ED.... ... 56,56-321,122}
01-11 23:52:05.429 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                   android.support.design.widget.FloatingActionButton{123dbd9 VFED..C. ... 1188,2140-1384,2336 #7f0c006c app:id/fab}
01-11 23:52:05.429 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                 android.support.design.widget.NavigationView{c16e99e V.E..... ... 0,0-980,2392 #7f0c006a app:id/nav_view}
01-11 23:52:05.429 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                   android.support.design.internal.NavigationMenuView{f23cc7f VFED.V.. F.. 0,0-980,2392 #7f0c0073 app:id/design_navigation_view}
01-11 23:52:05.429 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                     android.widget.LinearLayout{3c6f44c V.E..... ... 0,0-980,588 #7f0c0072 app:id/navigation_header_container}
01-11 23:52:05.429 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                       android.widget.LinearLayout{8ed5c95 V.E..... ... 0,0-980,560}
01-11 23:52:05.429 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                         android.support.v7.widget.AppCompatImageView{f8401aa V.ED.... ... 56,92-224,316 #7f0c0078 app:id/imageView}
01-11 23:52:05.429 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                         android.support.v7.widget.AppCompatTextView{732b19b V.ED.... ... 56,316-924,438}
01-11 23:52:05.429 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                         android.support.v7.widget.AppCompatTextView{b950938 V.ED.... ... 56,438-693,504 #7f0c0079 app:id/textView}
01-11 23:52:05.429 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                     android.support.design.internal.NavigationMenuItemView{942d11 VFED..C. ... 0,588-980,756}
01-11 23:52:05.429 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                       android.support.v7.widget.AppCompatCheckedTextView{f88e76 V.ED.... ... 56,0-924,168 #7f0c0074 app:id/design_menu_item_text}
01-11 23:52:05.429 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                       android.widget.FrameLayout{a80cc77 V.E..... ... 924,0-924,168 #7f0c0076 app:id/design_menu_item_action_area}
01-11 23:52:05.429 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                     android.support.design.internal.NavigationMenuItemView{22d80e4 VFED..C. ... 0,756-980,924}
01-11 23:52:05.429 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                       android.support.v7.widget.AppCompatCheckedTextView{efd894d V.ED.... ... 56,0-924,168 #7f0c0074 app:id/design_menu_item_text}
01-11 23:52:05.429 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                       android.widget.FrameLayout{571c02 V.E..... ... 924,0-924,168 #7f0c0076 app:id/design_menu_item_action_area}
01-11 23:52:05.429 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                     android.support.design.internal.NavigationMenuItemView{b2bb913 VFED..C. ... 0,924-980,1092}
01-11 23:52:05.429 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                       android.support.v7.widget.AppCompatCheckedTextView{bb3c750 V.ED.... ... 56,0-924,168 #7f0c0074 app:id/design_menu_item_text}
01-11 23:52:05.429 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                       android.widget.FrameLayout{a266d49 V.E..... ... 924,0-924,168 #7f0c0076 app:id/design_menu_item_action_area}
01-11 23:52:05.429 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                     android.support.design.internal.NavigationMenuItemView{71ef64e VFED..C. ... 0,1092-980,1260}
01-11 23:52:05.429 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                       android.support.v7.widget.AppCompatCheckedTextView{58ed36f V.ED.... ... 56,0-924,168 #7f0c0074 app:id/design_menu_item_text}
01-11 23:52:05.429 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                       android.widget.FrameLayout{916087c V.E..... ... 924,0-924,168 #7f0c0076 app:id/design_menu_item_action_area}
01-11 23:52:05.429 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                     android.widget.FrameLayout{df9505 V.E..... ... 0,1260-980,1292}
01-11 23:52:05.429 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                       android.view.View{578295a V.ED.... ... 0,28-980,32}
01-11 23:52:05.429 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                     android.support.v7.widget.AppCompatTextView{65f378b V.ED.... ... 0,1292-980,1460}
01-11 23:52:05.429 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                     android.support.design.internal.NavigationMenuItemView{9f93068 VFED..C. ... 0,1460-980,1628}
01-11 23:52:05.429 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                       android.support.v7.widget.AppCompatCheckedTextView{4497c81 V.ED.... ... 56,0-924,168 #7f0c0074 app:id/design_menu_item_text}
01-11 23:52:05.429 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                       android.widget.FrameLayout{3ff8126 V.E..... ... 924,0-924,168 #7f0c0076 app:id/design_menu_item_action_area}
01-11 23:52:05.429 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                     android.support.design.internal.NavigationMenuItemView{687c167 VFED..C. ... 0,1628-980,1796}
01-11 23:52:05.429 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                       android.support.v7.widget.AppCompatCheckedTextView{164eb14 V.ED.... ... 56,0-924,168 #7f0c0074 app:id/design_menu_item_text}
01-11 23:52:05.429 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:                       android.widget.FrameLayout{d105fbd V.E..... ... 924,0-924,168 #7f0c0076 app:id/design_menu_item_action_area}
01-11 23:52:05.429 1065-1065/th.ac.sd.drawertest2 D/FragmentManager:       android.view.View{65289b2 V.ED.... ... 0,2392-1440,2560 #1020030 android:id/navigationBarBackground}
01-11 23:52:05.429 1065-1065/th.ac.sd.drawertest2 D/AndroidRuntime: Shutting down VM


                                                                    --------- beginning of crash
01-11 23:52:05.430 1065-1065/th.ac.sd.drawertest2 E/AndroidRuntime: FATAL EXCEPTION: main
                                                                    Process: th.ac.sd.drawertest2, PID: 1065
                                                                    java.lang.IllegalArgumentException: No view found for id 0x7f0c0077 (th.ac.sd.drawertest2:id/layout_sms) for fragment SMSFragment{4b506d #0 id=0x7f0c0077}
                                                                        at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1059)
                                                                        at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1252)
                                                                        at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:742)
                                                                        at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1617)
                                                                        at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:517)
                                                                        at android.os.Handler.handleCallback(Handler.java:739)
                                                                        at android.os.Handler.dispatchMessage(Handler.java:95)
                                                                        at android.os.Looper.loop(Looper.java:148)
                                                                        at android.app.ActivityThread.main(ActivityThread.java:5417)
                                                                        at java.lang.reflect.Method.invoke(Native Method)
                                                                        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
                                                                        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

有人知道我做错了什么？这是我的第一个申请，所以我可能做错了。

谢谢！

Answer 1

您不会将content_main布局替换为其他布局。您希望content_main拥有这样的片段容器：

<FrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/fragment_container"
android:layout_width="match_parent"
android:layout_height="match_parent"/>

在您的代码中，您应该使用此代码段将您的片段放入FrameLayout：

getSupportFragmentManager().beginTransaction()
                           .replace(R.id.fragment_container,fragment)
                           .commit();

在您的情况下，将content_main布局复制到另一个文件first_fragmet.xml。为它创建另一个片段并像SMSFragment中那样对其进行充气。 在您的活动的onCreate()方法中，使用上面的代码放置第一个片段。例如

fragment = new FirstFragment();
getSupportFragmentManager().beginTransaction()
                           .replace(R.id.fragment_container,fragment)
                           .commit();

如果您希望使用SMSFragment替换当前视图，只需使用上面相同的代码，但使用fragment作为SMSFragment对象。 有关详细信息，请参阅this tutorial。