Android Studio：不幸的是“我的应用程序”已停止

Question

我是开发 Android 的新手。编写代码并运行调试器后，我的应用程序无法打开，并显示“不幸的是应用程序已停止”。

这是我的堆栈跟踪。

07-19 14:16:07.562 10834-10834/com.afiqah.fyp E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.afiqah.fyp, PID: 10834
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.afiqah.fyp/com.afiqah.fyp.MainActivity}: android.view.InflateException: Binary XML file line #43: Binary XML file line #43: Error inflating class info.hoang8f.widget.FButton
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2434)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2494)
    at android.app.ActivityThread.access$900(ActivityThread.java:153)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1347)
    at android.os.Handler.dispatchMessage(Handler.java:102)
    at android.os.Looper.loop(Looper.java:148)
    at android.app.ActivityThread.main(ActivityThread.java:5451)
    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 #43: Binary XML file line #43: Error inflating class info.hoang8f.widget.FButton
    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:287)
    at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:139)
    at com.afiqah.fyp.MainActivity.onCreate(MainActivity.java:17)
    at android.app.Activity.performCreate(Activity.java:6323)
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1108)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2387)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2494) 
    at android.app.ActivityThread.access$900(ActivityThread.java:153) 
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1347) 
    at android.os.Handler.dispatchMessage(Handler.java:102) 
    at android.os.Looper.loop(Looper.java:148) 
    at android.app.ActivityThread.main(ActivityThread.java:5451) 
    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 #43: Error inflating class info.hoang8f.widget.FButton
    at android.view.LayoutInflater.createView(LayoutInflater.java:645)
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:764)
    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.rInflate(LayoutInflater.java:838)
    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:287) 
    at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:139) 
    at com.afiqah.fyp.MainActivity.onCreate(MainActivity.java:17) 
    at android.app.Activity.performCreate(Activity.java:6323) 
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1108) 
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2387) 
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2494) 
    at android.app.ActivityThread.access$900(ActivityThread.java:153) 
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1347) 
    at android.os.Handler.dispatchMessage(Handler.java:102) 
    at android.os.Looper.loop(Looper.java:148) 
    at android.app.ActivityThread.main(ActivityThread.java:5451) 
    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.reflect.InvocationTargetException
    at java.lang.reflect.Constructor.newInstance(Native Method)
    at android.view.LayoutInflater.createView(LayoutInflater.java:619)
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:764) 
    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.rInflate(LayoutInflater.java:838) 
    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:287) 
    at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:139) 
    at com.afiqah.fyp.MainActivity.onCreate(MainActivity.java:17) 
    at android.app.Activity.performCreate(Activity.java:6323) 
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1108) 
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2387) 
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2494) 
    at android.app.ActivityThread.access$900(ActivityThread.java:153) 
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1347) 
    at android.os.Handler.dispatchMessage(Handler.java:102) 
    at android.os.Looper.loop(Looper.java:148) 
    at android.app.ActivityThread.main(ActivityThread.java:5451) 
    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.UnsupportedOperationException: Can't convert to color: type=0x5
    at android.content.res.TypedArray.getColor(TypedArray.java:451)
    at info.hoang8f.widget.FButton.parseAttrs(FButton.java:116)
    at info.hoang8f.widget.FButton.<init>(FButton.java:52)
    at java.lang.reflect.Constructor.newInstance(Native Method) 
    at android.view.LayoutInflater.createView(LayoutInflater.java:619) 
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:764) 
    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.rInflate(LayoutInflater.java:838) 
    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:287) 
    at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:139) 
    at com.afiqah.fyp.MainActivity.onCreate(MainActivity.java:17) 
    at android.app.Activity.performCreate(Activity.java:6323) 
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1108) 
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2387) 
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2494) 
    at android.app.ActivityThread.access$900(ActivityThread.java:153) 
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1347) 
    at android.os.Handler.dispatchMessage(Handler.java:102) 
    at android.os.Looper.loop(Looper.java:148) 
    at android.app.ActivityThread.main(ActivityThread.java:5451) 
    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) 

这是我的 activity_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:layout_width="match_parent"
android:background="@drawable/back"
tools:context=".MainActivity"
android:layout_height="match_parent">

<LinearLayout
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentTop="true"
    android:layout_centerHorizontal="true"
    android:layout_marginTop="123dp"
    android:orientation="vertical">

    <ImageView
        android:layout_width="321dp"
        android:layout_height="158dp"
        android:contentDescription="TODO"
        android:src="@drawable/logo" />

    <TextView
        android:id="@+id/txtSlogan"
        android:layout_width="match_parent"
        android:layout_height="106dp"
        android:gravity="center"
        android:text="@string/slogan"
        android:textColor="@android:color/black" />

</LinearLayout>

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:layout_alignParentStart="true"
    android:layout_marginBottom="15dp"
    android:orientation="horizontal"
    android:weightSum="2">

    <info.hoang8f.widget.FButton
        android:id="@+id/btnSignUp"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_margin="8dp"
        android:layout_weight="1"
        android:text="Sign Up"
        android:textColor="@android:color/white"
        app:buttonColor="@color/btnSignUp"
        app:cornerRadius="4dp"
        app:shadowColor="@android:color/black"
        app:shadowEnabled="true" />

    <info.hoang8f.widget.FButton
        android:id="@+id/btnSignIn"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_margin="8dp"
        android:layout_weight="1"
        android:text="Sign In"
        android:textColor="@android:color/white"
        app:buttonColor="@color/btnSignActive"
        app:cornerRadius="4dp"
        app:shadowColor="@android:color/black"
        app:shadowEnabled="true" />

</LinearLayout>

这是我的 AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>

<application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:roundIcon="@mipmap/ic_launcher_round"
    android:supportsRtl="true"
    android:theme="@style/AppTheme">
    <activity android:name=".MainActivity">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

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

这是我的 MainActivity.java

    public class MainActivity extends AppCompatActivity {

    Button btnSignIn,btnSignUp;
    TextView txtSlogan;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        btnSignIn = (Button)findViewById(R.id.btnSignIn);
        btnSignUp = (Button)findViewById(R.id.btnSignUp);

        txtSlogan = (TextView)findViewById(R.id.txtSlogan);
        Typeface face = Typeface.createFromAsset(getAssets(),"fonts/Nabila.ttf");
        txtSlogan.setTypeface(face);

        btnSignIn.setOnClickListener(new View.OnClickListener(){
            @Override
            public void onClick(View view){

            }
        });

        btnSignUp.setOnClickListener(new View.OnClickListener(){
            @Override
            public void onClick(View view){

            }
        });
    }
}

有人知道我的问题出在哪里吗？我需要解决它，因为这是我最后一年的项目。

Answer 1

最新更新：

我想我找到了答案，虽然我没有对其进行测试，但它是一个更新的提交，人们已经证明它可以工作，请参阅 jd-alexander 的评论在这里，

https://github.com/hoang8f/android-flat-button/issues/41#issuecomment-350491965

另外，请在此处查看 hoang8f 的平面 android 按钮的修改后的 repo

https://github.com/jd-alexander/android-flat-button

如果你对如何实现它有点困惑，你可以在这里查看 panpan1997 的评论

https://github.com/hoang8f/android-flat-button/issues/41#issuecomment-375702859

结束

旧帖从这里开始

我相信您正在关注 youtube 上的“Eat-it”应用教程。我面临同样的挑战，我也很怀疑它与

info.hoang8f.widget.FButton

我尝试的是进入我的 gradle 文件（应用程序）并注释掉对该 api 的调用，还将应用程序中的每次出现都从 info.hoang8f.widget.FButton 更改为 Button，这样我就可以在没有的情况下工作按钮，不再有错误。

如果“主题”有错误，请检查您的 styles.xml 文件，如果没有，请尝试检查代码。它应该显示您的任何文件是否引发任何错误。

如果所有其他方法都失败，请在此处查看Error inflating class info.hoang8f.widget.FButton

如果您使用的是 android studio v3，您可能需要更改您的 gradle 版本，您的 gradle 版本也会显示为 3，因此您可以在 build.gradle (Project) 文件中对其进行降级，例如：

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.3.3'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

Answer 2

您不能将 info.hoang8f.widget.FButton 保存在一个简单的 Button 中，使用像这样的库提供的那个。

info.hoang8f.widget.FButton  btnSignIn, btnSignUp;
btnSignIn = (FButton) findViewById(R.id.btnSignIn)

你并不需要完整的包我只是用它来参考只是导入包

Answer 3

<info.hoang8f.widget.FButton
    android:id="@+id/btnSignUp"
    android:layout_width="0dp"
    android:layout_height="wrap_content"
    android:layout_margin="8dp"
    android:layout_weight="1"
    android:text="Sign Up"
    android:textColor="@android:color/white"
    // app:buttonColor="@color/btnSignUp"
    app:cornerRadius="4dp"
    app:shadowColor="@android:color/black"
    app:shadowEnabled="true" />

删除app:buttonColor 行并重试

或

您可以按照以下步骤操作

1. prest Ctrl+Alt+Shift+S
2. Select project
3. Change gradle Version to -> 3.3
4. change Android PLugin version to -> 2.3.3

对我有用

这也是可用的备用库https://github.com/jd-alexander/android-flat-button