java - 如何修复 : No view found for id 0x7f0d00aa?

Question

我见过有同样问题的人，他们说 .replace() 以及我使用fragmentManager.beginTransaction() 构建 fragment 和容器的方式有问题。代替 (R.id.container, new Fragment()).commit();我必须以其他方式做到这一点，我将其实现到我的代码中，但我仍然收到错误。错误:

E/AndroidRuntime: FATAL EXCEPTION: main
              Process: mcshreker.pocketmath, PID: 3215
              java.lang.IllegalArgumentException: No view found for id 0x7f0d00aa (mcshreker.pocketmath:id/content_main_container) for fragment secondFragment{bf0f022 #0 id=0x7f0d00aa}
                  at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1292)
                  at android.support.v4.app.FragmentManagerImpl.moveFragmentsToInvisible(FragmentManager.java:2323)
                  at android.support.v4.app.FragmentManagerImpl.executeOpsTogether(FragmentManager.java:2136)
                  at android.support.v4.app.FragmentManagerImpl.optimizeAndExecuteOps(FragmentManager.java:2092)
                  at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1998)
                  at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:709)
                  at android.os.Handler.handleCallback(Handler.java:751)
                  at android.os.Handler.dispatchMessage(Handler.java:95)
                  at android.os.Looper.loop(Looper.java:154)
                  at android.app.ActivityThread.main(ActivityThread.java:6119)
                  at java.lang.reflect.Method.invoke(Native Method)
                  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886)
                  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776)

代码(主要 Activity )

package mcshreker.pocketmath;

import android.app.FragmentTransaction;
import android.os.Build;
import android.os.Bundle;
import android.support.annotation.RequiresApi;
import android.support.v4.app.FragmentManager;
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);

    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.setDrawerListener(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


@RequiresApi(api = Build.VERSION_CODES.M)
@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(MenuItem item) {
    // Handle navigation view item clicks here.
    int id = item.getItemId();
return super.onOptionsItemSelected(item);
    FragmentManager fragmentManager = getSupportFragmentManager();

    if (id == R.id.nav_first_layout) {
        fragmentManager.beginTransaction().replace
                (R.id.content_main_container, new firstFragment()).commit();

        // Handle the camera action

}

    } else if (id == R.id.nav_second_layout) {
        fragmentManager.beginTransaction().replace
                (R.id.content_main_container, new secondFragment()).commit();
    } else if (id == R.id.nav_third_layout) {
        fragmentManager.beginTransaction().replace
                (R.id.content_main_container, new thirdFragment()).commit();
    } else if (id == R.id.nav_fourth_layout) {
        fragmentManager.beginTransaction().replace
                (R.id.content_main_container, new fourthFragment()).commit();
    } else if (id == R.id.nav_fifth_layout) {
        fragmentManager.beginTransaction().replace
                (R.id.content_main_container, new fifthFragment()).commit();
    } else if (id == R.id.nav_sixth_layout) {
        fragmentManager.beginTransaction().replace
                (R.id.content_main_container, new sixthFragment()).commit();
    } else if (id == R.id.nav_seventh_layout) {
        fragmentManager.beginTransaction().replace
                (R.id.content_main_container, new seventhFragment()).commit();
    } else if (id == R.id.nav_eighth_layout) {
        fragmentManager.beginTransaction().replace
                (R.id.content_main_container, new eighthFragment()).commit();
    } else if (id == R.id.nav_ninth_layout) {
        fragmentManager.beginTransaction().replace
                (R.id.content_main_container, new ninthFragment()).commit();
    }

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

这是我的 content_main_container 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_container"
    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="mcshreker.pocketmath.MainActivity">

    <LinearLayout
        android:orientation="vertical"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <ImageView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:srcCompat="@drawable/e"
            android:id="@+id/imageView7"
            android:layout_marginTop="96dp"
            android:layout_alignParentTop="true"
            android:layout_centerHorizontal="true"
            android:contentDescription=""
            tools:ignore="ContentDescription" />

        <ImageView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:srcCompat="@drawable/welcome"
            android:id="@+id/imageView2"
            android:layout_alignParentTop="true"
            android:layout_alignParentLeft="true"
            android:layout_alignParentStart="true"
            tools:ignore="ContentDescription" />
    </LinearLayout>

</RelativeLayout>

这是我的 Activity_main 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">

    <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>

非常感谢您的帮助!

Answer 1

No view found for id 0x7f0d00aa (mcshreker.pocketmath:id/content_main_container)

检查 content_main_container 是否在您的 activity_main 布局中定义