Question

我无法启动我的Activity，应用程序部队关闭，有关无法充气FAB的错误，我已经阅读了针对某些问题提供的其他答案，但大多数人都提到了从他们的xml更改背景tint属性，并提到其他人将compat属性添加到您的活动中，我已经完成了它们，但仍然收到错误。任何人都可以弄明白，我做错了。

错误记录

无法启动活动ComponentInfo {com.fayaz.pix / com.fayaz.pix.MainActivity}：android.view.InflateException：二进制XML文件行＃24：二进制XML文件行＃24：错误膨胀类android.support .design.widget.FloatingActionButton

activity_main.xml中

<android.support.design.widget.CoordinatorLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.fayaz.pix.MainActivity">

<android.support.design.widget.AppBarLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:theme="@style/AppTheme.AppBarOverlay">

    <android.support.v7.widget.Toolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        android:background="?attr/colorPrimary"
        app:popupTheme="@style/AppTheme.PopupOverlay" />

</android.support.design.widget.AppBarLayout>

<include layout="@layout/content_main" />

<android.support.design.widget.FloatingActionButton
    android:id="@+id/fab"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="bottom|end"
    android:layout_margin="@dimen/fab_margin"
    app:srcCompat="@android:drawable/ic_dialog_email" />
</android.support.design.widget.CoordinatorLayout>

摇篮

apply plugin: 'com.android.application'

android {
compileSdkVersion 23
buildToolsVersion "23.0.1"

defaultConfig {
    applicationId "com.fayaz.pix"
    minSdkVersion 19
    targetSdkVersion 23
    versionCode 1
    versionName "1.0"
}
buildTypes {
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
    }
}
}

dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:23.4.0'
compile 'com.android.support:design:23.4.0'
compile 'com.google.firebase:firebase-core:9.6.0'
compile 'com.firebaseui:firebase-ui-database:0.6.1'
compile 'com.firebaseui:firebase-ui-storage:0.6.1'
compile 'com.android.support:recyclerview-v7:23.1.0'
compile 'com.android.support:cardview-v7:23.1.0'
}
apply plugin: 'com.google.gms.google-services'

活动

public class MainActivity extends AppCompatActivity {

private RecyclerView mPostRV;
private FirebaseRecyclerAdapter<Post, PostViewHolder> mPostAdapter;
private DatabaseReference mPostRef;


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

    initialiseScreen();

    FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
    fab.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            sendPosttoFirebase();
        }
    });
}

private void sendPosttoFirebase() {
    Post post = new Post();
    String UID = Utils.getUID();

    post.setUID(UID);
    post.setNumLikes(0);
    post.setImageUrl("https://static.pexels.com/photos/36487/above-adventure-aerial-air.jpg");

    mPostRef.child(UID).setValue(post);
}

private void initialiseScreen() {
    mPostRV = (RecyclerView)findViewById(R.id.post_rv);
    mPostRV.setLayoutManager(new LinearLayoutManager(MainActivity.this));
    mPostRef = FirebaseDatabase.getInstance().getReference(Constants.POSTS);
    setupAdapter();
    mPostRV.setAdapter(mPostAdapter);
}

private void setupAdapter() {
    mPostAdapter = new FirebaseRecyclerAdapter<Post, PostViewHolder>(Post.class, R.layout.item_layout,PostViewHolder.class, mPostRef) {
        @Override
        protected void populateViewHolder(PostViewHolder viewHolder, final Post model, int position) {
            StorageReference storageReference = FirebaseStorage.getInstance().getReferenceFromUrl(model.getImageUrl());
            Glide.with(MainActivity.this)
                    .using(new FirebaseImageLoader())
                    .load(storageReference)
                    .into(viewHolder.postIV);
            viewHolder.setNumLikes(model.getNumLikes());
            viewHolder.postLikes.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    updateNumLikes(model.getUID());
                }
            });
        }
    };
}

private void updateNumLikes(String uid) {
    mPostRef.child(uid).child(Constants.NUM_LIKES).runTransaction(new Transaction.Handler() {
        @Override
        public Transaction.Result doTransaction(MutableData mutableData) {
            long num = (long) mutableData.getValue();
            num++;
            mutableData.setValue(num);
            return Transaction.success(mutableData);
        }

        @Override
        public void onComplete(DatabaseError databaseError, boolean b, DataSnapshot dataSnapshot) {

        }
    });
}

public static class PostViewHolder extends RecyclerView.ViewHolder {
    public ImageView postIV, postLikes;
    public TextView numLikes;

    public PostViewHolder(View itemView) {
        super(itemView);

        postIV = (ImageView)itemView.findViewById(R.id.post_iv);
        postLikes = (ImageView)itemView.findViewById(R.id.likes_iv);
        numLikes =  (TextView)itemView.findViewById(R.id.num_likes_tv);

    }

    public void setNumLikes(long num){
        numLikes.setText(String.valueOf(num));`enter code here`
    }
}
}

清单

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.fayaz.pix">
<uses-permission android:name="android.permission.INTERNET"/>
<application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:supportsRtl="true"
    android:theme="@style/AppTheme">
    <activity
        android:name=".MainActivity"
        android:label="@string/app_name"
        android:theme="@style/AppTheme.NoActionBar">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
</application>

</manifest>

Answer 1

我不知道它是否有效但您是否尝试用线性布局或相对布局包围所有xml代码？

无法充气浮动操作按钮错误

1 个答案: