我正在开发一个应用程序。我的 android studio 版本是 1.4。在我的应用程序中，我在设计时添加了 android.support.design.widget.FloatingActionButton 按钮。在我添加 facebook 库之前它工作正常。
当我添加 facebook 库时， float 按钮停止工作，它的 UI 将被更改，其他事情是当我尝试初始化时，它向我发送错误 NullPointerException。当我在我的项目中添加 facebook 库时，FlaotButton UI 发生了变化，它看起来像这样。
当我从 gradle 文件中删除 facebook 库时，它看起来像这样 
.
提前致谢，非常感谢您的帮助。
我的应用级build.gradle文件
apply plugin: 'com.android.application'
android {
compileSdkVersion 23
buildToolsVersion "23.0.3"
defaultConfig {
applicationId "com.zennaxx.socialgf"
minSdkVersion 15
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-v7:23.3.0'
compile 'com.android.support:design:23.3.0'
compile 'com.facebook.android:facebook-android-sdk:4.+'
compile 'com.squareup.picasso:picasso:2.5.2'
}
这是我的login_activity.xml布局文件
<?xml version="1.0" encoding="utf-8"?>
<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"
android:fitsSystemWindows="true"
tools:context="com.zennaxx.socialgf.Login">
<include layout="@layout/login_layout"/>
<android.support.design.widget.FloatingActionButton
android:id="@+id/next"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end"
android:layout_margin="@dimen/fab_margin"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:src="@android:drawable/ic_dialog_email" />
</android.support.design.widget.CoordinatorLayout>
这是我的login_layout.xml文件
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@color/colorPrimary"
android:gravity="center"
android:orientation="vertical"
android:padding="@dimen/activity_horizontal_margin">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:gravity="center">
<com.facebook.login.widget.LoginButton
android:id="@+id/login_button"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:visibility="gone"/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/imageView2"
android:layout_below="@+id/userName"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_marginTop="41dp" />
<TextView
android:id="@+id/userName"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="New Text"
android:textSize="25dp"
android:layout_centerVertical="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:visibility="gone"/>
<ImageButton
android:id="@+id/imgFacebook"
android:layout_width="50dp"
android:layout_height="50dp"
android:gravity="center"
android:onClick="onClick"
android:layout_marginRight="@dimen/right_side"
android:background="@drawable/ic_facebook" />
<ImageButton
android:id="@+id/imgGoogle"
android:layout_width="50dp"
android:layout_height="50dp"
android:gravity="center"
android:background="@drawable/ic_google_plus" />
</LinearLayout>
<ImageView
android:layout_width="@dimen/logo_w_h"
android:layout_height="@dimen/logo_w_h"
android:layout_gravity="center_horizontal"
android:layout_marginBottom="30dp"
android:src="@mipmap/ic_launcher"
android:visibility="gone"/>
<android.support.design.widget.TextInputLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<EditText
android:id="@+id/email"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="10dp"
android:hint="@string/hint_email"
android:inputType="textEmailAddress"
android:textColor="@android:color/white"
android:textColorHint="@android:color/white" />
</android.support.design.widget.TextInputLayout>
<android.support.design.widget.TextInputLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<EditText
android:id="@+id/password"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="10dp"
android:hint="@string/hint_password"
android:inputType="textPassword"
android:textColor="@android:color/white"
android:textColorHint="@android:color/white" />
</android.support.design.widget.TextInputLayout>
<!-- Login Button -->
<Button
android:id="@+id/btn_login"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="20dip"
android:background="@color/colorAccent"
android:text="@string/btn_login"
android:textColor="@android:color/black" />
<Button
android:id="@+id/btn_reset_password"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="20dip"
android:background="@null"
android:text="@string/btn_forgot_password"
android:textAllCaps="false"
android:textColor="@color/colorAccent" />
<!-- Link to Login Screen -->
<Button
android:id="@+id/btn_signup"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="20dip"
android:background="@null"
android:text="@string/btn_link_to_register"
android:textAllCaps="false"
android:textColor="@color/white"
android:textSize="15dp" />
<ProgressBar
android:id="@+id/progressBar"
android:layout_width="30dp"
android:layout_height="30dp"
android:layout_gravity="center|bottom"
android:layout_marginBottom="20dp"
android:visibility="gone" />
</LinearLayout>
</LinearLayout>
这是我的错误日志
11-21 02:11:38.053 2309-2309/com.zennaxx.socialgf W/System.err: android.view.InflateException: Binary XML file line #148: Binary XML file line #148: Error inflating class android.support.design.widget.FloatingActionButton
11-21 02:11:38.053 2309-2309/com.zennaxx.socialgf W/System.err: at android.view.LayoutInflater.inflate(LayoutInflater.java:539)
11-21 02:11:38.054 2309-2309/com.zennaxx.socialgf W/System.err: at android.view.LayoutInflater.inflate(LayoutInflater.java:423)
11-21 02:11:38.054 2309-2309/com.zennaxx.socialgf W/System.err: at android.view.LayoutInflater.inflate(LayoutInflater.java:374)
11-21 02:11:38.054 2309-2309/com.zennaxx.socialgf W/System.err: at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:284)
11-21 02:11:38.054 2309-2309/com.zennaxx.socialgf W/System.err: at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:143)
11-21 02:11:38.054 2309-2309/com.zennaxx.socialgf W/System.err: at com.zennaxx.socialgf.Login.onCreate(Login.java:76)
11-21 02:11:38.054 2309-2309/com.zennaxx.socialgf W/System.err: at android.app.Activity.performCreate(Activity.java:6237)
11-21 02:11:38.054 2309-2309/com.zennaxx.socialgf W/System.err: at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107)
11-21 02:11:38.054 2309-2309/com.zennaxx.socialgf W/System.err: at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369)
11-21 02:11:38.054 2309-2309/com.zennaxx.socialgf W/System.err: at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
11-21 02:11:38.054 2309-2309/com.zennaxx.socialgf W/System.err: at android.app.ActivityThread.-wrap11(ActivityThread.java)
11-21 02:11:38.055 2309-2309/com.zennaxx.socialgf W/System.err: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
11-21 02:11:38.055 2309-2309/com.zennaxx.socialgf W/System.err: at android.os.Handler.dispatchMessage(Handler.java:102)
11-21 02:11:38.055 2309-2309/com.zennaxx.socialgf W/System.err: at android.os.Looper.loop(Looper.java:148)
11-21 02:11:38.055 2309-2309/com.zennaxx.socialgf W/System.err: at android.app.ActivityThread.main(ActivityThread.java:5417)
11-21 02:11:38.055 2309-2309/com.zennaxx.socialgf W/System.err: at java.lang.reflect.Method.invoke(Native Method)
11-21 02:11:38.055 2309-2309/com.zennaxx.socialgf W/System.err: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
11-21 02:11:38.055 2309-2309/com.zennaxx.socialgf W/System.err: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
11-21 02:11:38.055 2309-2309/com.zennaxx.socialgf W/System.err: Caused by: android.view.InflateException: Binary XML file line #148: Error inflating class android.support.design.widget.FloatingActionButton
11-21 02:11:38.055 2309-2309/com.zennaxx.socialgf W/System.err: at android.view.LayoutInflater.createView(LayoutInflater.java:645)
11-21 02:11:38.056 2309-2309/com.zennaxx.socialgf W/System.err: at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:764)
11-21 02:11:38.056 2309-2309/com.zennaxx.socialgf W/System.err: at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704)
11-21 02:11:38.056 2309-2309/com.zennaxx.socialgf W/System.err: at android.view.LayoutInflater.rInflate(LayoutInflater.java:835)
11-21 02:11:38.056 2309-2309/com.zennaxx.socialgf W/System.err: at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:798)
11-21 02:11:38.056 2309-2309/com.zennaxx.socialgf W/System.err: at android.view.LayoutInflater.rInflate(LayoutInflater.java:838)
11-21 02:11:38.056 2309-2309/com.zennaxx.socialgf W/System.err: at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:798)
11-21 02:11:38.056 2309-2309/com.zennaxx.socialgf W/System.err: at android.view.LayoutInflater.inflate(LayoutInflater.java:515)
11-21 02:11:38.056 2309-2309/com.zennaxx.socialgf W/System.err: ... 17 more
11-21 02:11:38.056 2309-2309/com.zennaxx.socialgf W/System.err: Caused by: java.lang.reflect.InvocationTargetException
11-21 02:11:38.057 2309-2309/com.zennaxx.socialgf W/System.err: at java.lang.reflect.Constructor.newInstance(Native Method)
11-21 02:11:38.057 2309-2309/com.zennaxx.socialgf W/System.err: at android.view.LayoutInflater.createView(LayoutInflater.java:619)
11-21 02:11:38.057 2309-2309/com.zennaxx.socialgf W/System.err: ... 24 more
11-21 02:11:38.057 2309-2309/com.zennaxx.socialgf W/System.err: Caused by: java.lang.NoSuchMethodError: No direct method <init>(Landroid/widget/ImageView;Landroid/support/v7/widget/AppCompatDrawableManager;)V in class Landroid/support/v7/widget/AppCompatImageHelper; or its super classes (declaration of 'android.support.v7.widget.AppCompatImageHelper' appears in /data/app/com.zennaxx.socialgf-1/base.apk)
11-21 02:11:38.057 2309-2309/com.zennaxx.socialgf W/System.err: at android.support.design.widget.FloatingActionButton.<init>(FloatingActionButton.java:133)
11-21 02:11:38.057 2309-2309/com.zennaxx.socialgf W/System.err: at android.support.design.widget.FloatingActionButton.<init>(FloatingActionButton.java:110)
11-21 02:11:38.058 2309-2309/com.zennaxx.socialgf W/System.err: ... 26 more
11-21 02:11:38.176 2309-2336/com.zennaxx.socialgf D/OpenGLRenderer: Use EGL_SWAP_BEHAVIOR_PRESERVED: true
11
最佳答案
我在谷歌上搜索，看到很多关于 FloatingActionButton 膨胀错误的问题。我搜索了 facebook sdk，然后知道 Facebook 库与我的 FloatActionButton 冲突，因为在我的项目中，Facebook SDK 库版本高于我的 appcompat v7。
我更新了这些，如下所示
1. Android SDK 构建工具。
2. Android SDK工具。
3. Android SDK 平台-工具。
4.Google Play 服务。
5. Google 存储库。
现在我的编译库与 facebook sdk 是这样的，它在我的项目中工作正常。
compile 'com.android.support:appcompat-v7:24.2.0'
compile 'com.android.support:design:24.2.0'
compile 'com.facebook.android:facebook-android-sdk:4.+'
关于在项目中添加 Facebook 库时，android.support.design.widget.FloatingActionButton 停止工作，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/40714429/