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使用Android Material Chip

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你好我是android的新手并且学习使用材料芯片 . 我创建了一个测试项目并添加了以下内容

我加入了我的gradle文件

implementation 'com.android.support:design:28.0.0'

在我的片段xml中我添加了

<android.support.design.chip.Chip
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="test chip"/>

但我一直得到这个错误

java.lang.RuntimeException: Unable to start activity ComponentInfo{nonso.android.test/nonso.android.test.MainActivity}: android.view.InflateException: Binary XML file line #20: Binary XML file line #20: Error inflating class android.support.design.chip.Chip
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2778)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2856)
    at android.app.ActivityThread.-wrap11(Unknown Source:0)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1589)
    at android.os.Handler.dispatchMessage(Handler.java:106)
    at android.os.Looper.loop(Looper.java:164)
    at android.app.ActivityThread.main(ActivityThread.java:6494)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
 Caused by: android.view.InflateException: Binary XML file line #20: Binary XML file line #20: Error inflating class android.support.design.chip.Chip
 Caused by: android.view.InflateException: Binary XML file line #20: Error inflating class android.support.design.chip.Chip
 Caused by: java.lang.reflect.InvocationTargetException
    at java.lang.reflect.Constructor.newInstance0(Native Method)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:334)
    at android.view.LayoutInflater.createView(LayoutInflater.java:647)
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:790)
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:730)
    at android.view.LayoutInflater.rInflate(LayoutInflater.java:863)
    at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:824)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:515)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:423)
    at nonso.android.test.ui.main.MainFragment.onCreateView(MainFragment.java:26)
    at android.support.v4.app.Fragment.performCreateView(Fragment.java:2439)
    at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1460)
    at android.support.v4.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManager.java:1784)
    at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1852)
    at android.support.v4.app.FragmentManagerImpl.dispatchStateChange(FragmentManager.java:3269)
    at android.support.v4.app.FragmentManagerImpl.dispatchActivityCreated(FragmentManager.java:3229)
    at android.support.v4.app.FragmentController.dispatchActivityCreated(FragmentController.java:201)
    at android.support.v4.app.FragmentActivity.onStart(FragmentActivity.java:620)
    at android.support.v7.app.AppCompatActivity.onStart(AppCompatActivity.java:178)
    at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1334)
    at android.app.Activity.performStart(Activity.java:7029)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2741)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2856)
    at android.app.ActivityThread.-wrap11(Unknown Source:0)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1589)
    at android.os.Handler.dispatchMessage(Handler.java:106)
    at android.os.Looper.loop(Looper.java:164)
    at android.app.ActivityThread.main(ActivityThread.java:6494)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
 Caused by: java.lang.IllegalArgumentException: This component requires that you specify a valid TextAppearance attribute. Update your app theme to inherit from Theme.MaterialComponents (or a descendant).
    at android.support.design.internal.ThemeEnforcement.checkTextAppearance(ThemeEnforcement.java:170)
    at android.support.design.internal.ThemeEnforcement.obtainStyledAttributes(ThemeEnforcement.java:75)
E/AndroidRuntime:     at android.support.design.chip.ChipDrawable.loadFromAttributes(ChipDrawable.java:343)
        at android.support.design.chip.ChipDrawable.createFromAttributes(ChipDrawable.java:278)
    at android.support.design.chip.Chip.<init>(Chip.java:172)
    at android.support.design.chip.Chip.<init>(Chip.java:165)
        ... 31 more

似乎android.support.design.chip.Chip有一个问题，我尝试过使用com.google.android.material.chip.Chip，但这也不起作用，任何帮助都会非常感激！谢谢！

android android-chips

2 回答

  • 1

    在您粘贴的错误中是正确的：

    引起：java.lang.IllegalArgumentException：此组件要求您指定有效的TextAppearance属性 . 更新您的应用主题以继承Theme.MaterialComponents（或后代） .

    因此，要么将 android:textAppearance="@style/SomeTextAppearance" 添加到您的Chip XML，要么将您的样式更改为父 Theme.MaterialComponents .

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  • 2

    尝试使用： app:chipText

    <android.support.design.chip.Chip
    android:id="@+id/some_chip"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    app:chipText="This is a chip" />

    此外，这不仅仅是这种情况，并将其添加到您的 styles.xml ：

    parent="Theme.MaterialComponents.Light.NoActionBar"

    Read this＆之后你可能想做一个清洁重建项目 .

    com.google.android.material.chip.Chip 实际上有效 after Migrating to AndroidX （如果我没错），因为它来自Material Design .

    例如：

    <com.google.android.material.chip.Chip
      style="@style/TextAppearance.MaterialComponents.Chip"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_marginStart="5dp"
      android:layout_marginEnd="5dp"
      android:text="Android"
      app:chipIcon="@drawable/androidtag" />

    所有这些应该适用于Android Studio 3.2及更高版本28.0.0或迁移到 AndroidX 之后 .

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