我收到错误，这是我的XML文件
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".BMIActivity">
<androidx.appcompat.widget.Toolbar
android:id="@+id/toolbar_bmi_activity"
android:layout_width="match_parent"
android:layout_height="?android:attr/actionBarSize"
android:background="#FFFFFF" />
<RadioGroup
android:id="@+id/rgUnits"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/toolbar_bmi_activity"
android:layout_margin="10dp"
android:background="@drawable/drawable_radio_group_tab_background"
android:orientation="horizontal">
<RadioButton
android:id="@+id/rbMetricUnits"
android:layout_width="0dp"
android:layout_height="35dp"
android:layout_weight="0.50"
android:background="@drawable/drawable_units_tab_selector"
android:button="@null"
android:checked="true"
android:gravity="center"
android:text="METRIC UNITS"
android:textColor="@drawable/drawable_units_tab_text_color_selector"
android:textSize="16sp"
android:textStyle="bold" />
<RadioButton
android:id="@+id/rbUsUnits"
android:layout_width="0dp"
android:layout_height="35dp"
android:layout_weight="0.50"
android:background="@drawable/drawable_units_tab_selector"
android:button="@null"
android:checked="false"
android:gravity="center"
android:text="US UNITS"
android:textColor="@drawable/drawable_units_tab_text_color_selector"
android:textSize="16sp"
android:textStyle="bold" />
</RadioGroup>
<LinearLayout
android:id="@+id/llUnitsView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="@id/rgUnits"
android:orientation="vertical"
android:padding="10dp">
<LinearLayout
android:id="@+id/llMetricUnitsView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<com.google.android.material.textfield.TextInputLayout
android:id="@+id/tilMetricUnitWeight"
style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<androidx.appcompat.widget.AppCompatEditText
android:id="@+id/etMetricUnitWeight"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="WEIGHT (in kg)"
android:inputType="numberDecimal"
android:textSize="16sp" />
</com.google.android.material.textfield.TextInputLayout>
<com.google.android.material.textfield.TextInputLayout
android:id="@+id/tilMetricUnitHeight"
style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp">
<androidx.appcompat.widget.AppCompatEditText
android:id="@+id/etMetricUnitHeight"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="HEIGHT (in cm)"
android:inputType="numberDecimal"
android:textSize="16sp" />
</com.google.android.material.textfield.TextInputLayout>
</LinearLayout>
<LinearLayout
android:id="@+id/llUsUnitsView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:visibility="gone"
tools:visibility="visible">
<com.google.android.material.textfield.TextInputLayout
android:id="@+id/tilUsUnitWeight"
style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<androidx.appcompat.widget.AppCompatEditText
android:id="@+id/etUsUnitWeight"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="WEIGHT (in lbs)"
android:inputType="numberDecimal"
android:textSize="16sp" />
</com.google.android.material.textfield.TextInputLayout>
<LinearLayout
android:id="@+id/llUsUnitsHeight"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:baselineAligned="false"
android:orientation="horizontal">
<com.google.android.material.textfield.TextInputLayout
android:id="@+id/tilUsUnitHeightFeet"
style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="5dp"
android:layout_weight="1">
<androidx.appcompat.widget.AppCompatEditText
android:id="@+id/etUsUnitHeightFeet"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Feet"
android:inputType="number"
android:textSize="16sp" />
</com.google.android.material.textfield.TextInputLayout>
<com.google.android.material.textfield.TextInputLayout
android:id="@+id/tilUsUnitHeightInch"
style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="5dp"
android:layout_weight="1">
<androidx.appcompat.widget.AppCompatEditText
android:id="@+id/etUsUnitHeightInch"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Inch"
android:inputType="number"
android:textSize="16sp" />
</com.google.android.material.textfield.TextInputLayout>
</LinearLayout>
</LinearLayout>
<LinearLayout
android:id="@+id/llDiplayBMIResult"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="25dp"
android:orientation="vertical"
android:visibility="visible"
tools:visibility="visible">
<TextView
android:id="@+id/tvYourBMI"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="YOUR BMI"
android:textAllCaps="true"
android:visibility="invisible"
android:textSize="16sp" />
<TextView
android:id="@+id/tvBMIValue"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="5dp"
android:gravity="center"
android:textSize="18sp"
android:textStyle="bold"
tools:text="15.00" />
<TextView
android:id="@+id/tvBMIType"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="5dp"
android:gravity="center"
android:textSize="18sp"
tools:text="Normal" />
<TextView
android:id="@+id/tvBMIDescription"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="5dp"
android:gravity="center"
android:textSize="18sp"
tools:text="Normal" />
</LinearLayout>
<Button
android:id="@+id/btnCalculateUnits"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:layout_marginTop="35dp"
android:background="@color/colorAccent"
android:text="CALCULATE"
android:textColor="#FFFFFF"
android:textSize="18sp" />
</LinearLayout>
</RelativeLayout>
这里是styles.xml
<resources>
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorAccent</item>
</style>
</resources>
这是堆垛机
2021-04-29 16:49:39.077 5682-5682/? I/nminutesworkou: Not late-enabling -Xcheck:jni (already on)
2021-04-29 16:49:39.090 5682-5682/? I/nminutesworkou: Unquickening 12 vdex files!
2021-04-29 16:49:39.100 5682-5682/? W/nminutesworkou: Unexpected CPU variant for X86 using defaults: x86
2021-04-29 16:49:39.434 5682-5682/com.example.sevenminutesworkout D/NetworkSecurityConfig: No Network Security Config specified, using platform default
2021-04-29 16:49:39.436 5682-5682/com.example.sevenminutesworkout D/NetworkSecurityConfig: No Network Security Config specified, using platform default
2021-04-29 16:49:39.466 5682-5710/com.example.sevenminutesworkout D/libEGL: loaded /vendor/lib/egl/libEGL_emulation.so
2021-04-29 16:49:39.472 5682-5710/com.example.sevenminutesworkout D/libEGL: loaded /vendor/lib/egl/libGLESv1_CM_emulation.so
2021-04-29 16:49:39.478 5682-5710/com.example.sevenminutesworkout D/libEGL: loaded /vendor/lib/egl/libGLESv2_emulation.so
2021-04-29 16:49:39.585 5682-5682/com.example.sevenminutesworkout W/nminutesworkou: Accessing hidden method Landroid/view/View;->computeFitSystemWindows(Landroid/graphics/Rect;Landroid/graphics/Rect;)Z (greylist, reflection, allowed)
2021-04-29 16:49:39.588 5682-5682/com.example.sevenminutesworkout W/nminutesworkou: Accessing hidden method Landroid/view/ViewGroup;->makeOptionalFitsSystemWindows()V (greylist, reflection, allowed)
2021-04-29 16:49:39.655 5682-5708/com.example.sevenminutesworkout D/HostConnection: HostConnection::get() New Host Connection established 0xf6a1f110, tid 5708
2021-04-29 16:49:39.659 5682-5708/com.example.sevenminutesworkout D/HostConnection: HostComposition ext ANDROID_EMU_CHECKSUM_HELPER_v1 ANDROID_EMU_native_sync_v2 ANDROID_EMU_native_sync_v3 ANDROID_EMU_native_sync_v4 ANDROID_EMU_dma_v1 ANDROID_EMU_direct_mem ANDROID_EMU_host_composition_v1 ANDROID_EMU_host_composition_v2 ANDROID_EMU_vulkan ANDROID_EMU_deferred_vulkan_commands ANDROID_EMU_vulkan_null_optional_strings ANDROID_EMU_vulkan_create_resources_with_requirements ANDROID_EMU_YUV_Cache ANDROID_EMU_async_unmap_buffer ANDROID_EMU_vulkan_ignored_handles ANDROID_EMU_vulkan_free_memory_sync ANDROID_EMU_vulkan_shader_float16_int8 ANDROID_EMU_vulkan_async_queue_submit GL_OES_vertex_array_object GL_KHR_texture_compression_astc_ldr ANDROID_EMU_host_side_tracing ANDROID_EMU_async_frame_commands ANDROID_EMU_gles_max_version_2
2021-04-29 16:49:39.661 5682-5708/com.example.sevenminutesworkout W/OpenGLRenderer: Failed to choose config with EGL_SWAP_BEHAVIOR_PRESERVED, retrying without...
2021-04-29 16:49:39.670 5682-5708/com.example.sevenminutesworkout D/EGL_emulation: eglCreateContext: 0xf6a1fb20: maj 2 min 0 rcv 2
2021-04-29 16:49:39.674 5682-5708/com.example.sevenminutesworkout D/EGL_emulation: eglMakeCurrent: 0xf6a1fb20: ver 2 0 (tinfo 0xf6d70170) (first time)
2021-04-29 16:49:39.698 5682-5708/com.example.sevenminutesworkout I/Gralloc4: mapper 4.x is not supported
2021-04-29 16:49:39.700 5682-5708/com.example.sevenminutesworkout D/HostConnection: createUnique: call
2021-04-29 16:49:39.700 5682-5708/com.example.sevenminutesworkout D/HostConnection: HostConnection::get() New Host Connection established 0xf6a1fb90, tid 5708
2021-04-29 16:49:39.722 5682-5708/com.example.sevenminutesworkout D/goldfish-address-space: allocate: Ask for block of size 0x100
2021-04-29 16:49:39.723 5682-5708/com.example.sevenminutesworkout D/goldfish-address-space: allocate: ioctl allocate returned offset 0x3fbcae000 size 0x2000
2021-04-29 16:49:39.728 5682-5708/com.example.sevenminutesworkout D/HostConnection: HostComposition ext ANDROID_EMU_CHECKSUM_HELPER_v1 ANDROID_EMU_native_sync_v2 ANDROID_EMU_native_sync_v3 ANDROID_EMU_native_sync_v4 ANDROID_EMU_dma_v1 ANDROID_EMU_direct_mem ANDROID_EMU_host_composition_v1 ANDROID_EMU_host_composition_v2 ANDROID_EMU_vulkan ANDROID_EMU_deferred_vulkan_commands ANDROID_EMU_vulkan_null_optional_strings ANDROID_EMU_vulkan_create_resources_with_requirements ANDROID_EMU_YUV_Cache ANDROID_EMU_async_unmap_buffer ANDROID_EMU_vulkan_ignored_handles ANDROID_EMU_vulkan_free_memory_sync ANDROID_EMU_vulkan_shader_float16_int8 ANDROID_EMU_vulkan_async_queue_submit GL_OES_vertex_array_object GL_KHR_texture_compression_astc_ldr ANDROID_EMU_host_side_tracing ANDROID_EMU_async_frame_commands ANDROID_EMU_gles_max_version_2
2021-04-29 16:49:44.812 5682-5682/com.example.sevenminutesworkout D/AndroidRuntime: Shutting down VM
2021-04-29 16:49:44.822 5682-5682/com.example.sevenminutesworkout E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.sevenminutesworkout, PID: 5682
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.sevenminutesworkout/com.example.sevenminutesworkout.BMIActivity}: android.view.InflateException: Binary XML file line #67 in com.example.sevenminutesworkout:layout/activity_bmi: Binary XML file line #67 in com.example.sevenminutesworkout:layout/activity_bmi: Error inflating class com.google.android.material.textfield.TextInputLayout
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3449)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3601)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2066)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:223)
at android.app.ActivityThread.main(ActivityThread.java:7656)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)
Caused by: android.view.InflateException: Binary XML file line #67 in com.example.sevenminutesworkout:layout/activity_bmi: Binary XML file line #67 in com.example.sevenminutesworkout:layout/activity_bmi: Error inflating class com.google.android.material.textfield.TextInputLayout
Caused by: android.view.InflateException: Binary XML file line #67 in com.example.sevenminutesworkout:layout/activity_bmi: Error inflating class com.google.android.material.textfield.TextInputLayout
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Constructor.newInstance0(Native Method)
at java.lang.reflect.Constructor.newInstance(Constructor.java:343)
at android.view.LayoutInflater.createView(LayoutInflater.java:852)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:1004)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:959)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:1121)
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1082)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:1124)
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1082)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:1124)
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1082)
at android.view.LayoutInflater.inflate(LayoutInflater.java:680)
at android.view.LayoutInflater.inflate(LayoutInflater.java:532)
at android.view.LayoutInflater.inflate(LayoutInflater.java:479)
at androidx.appcompat.app.AppCompatDelegateImpl.setContentView(AppCompatDelegateImpl.java:696)
at androidx.appcompat.app.AppCompatActivity.setContentView(AppCompatActivity.java:170)
at com.example.sevenminutesworkout.BMIActivity.onCreate(BMIActivity.kt:24)
at android.app.Activity.performCreate(Activity.java:8000)
at android.app.Activity.performCreate(Activity.java:7984)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1309)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3422)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3601)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2066)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:223)
at android.app.ActivityThread.main(ActivityThread.java:7656)
2021-04-29 16:49:44.824 5682-5682/com.example.sevenminutesworkout E/AndroidRuntime: at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)
Caused by: java.lang.IllegalArgumentException: The style on this component requires your app theme to be Theme.MaterialComponents (or a descendant).
at com.google.android.material.internal.ThemeEnforcement.checkTheme(ThemeEnforcement.java:243)
at com.google.android.material.internal.ThemeEnforcement.checkMaterialTheme(ThemeEnforcement.java:217)
at com.google.android.material.internal.ThemeEnforcement.checkCompatibleTheme(ThemeEnforcement.java:145)
at com.google.android.material.internal.ThemeEnforcement.obtainTintedStyledAttributes(ThemeEnforcement.java:115)
at com.google.android.material.textfield.TextInputLayout.<init>(TextInputLayout.java:463)
at com.google.android.material.textfield.TextInputLayout.<init>(TextInputLayout.java:422)
... 32 more
我曾尝试将AppCompat更改为MaterialComponents，但不起作用。但是，当我指向LinearLayout标记(com.google.android.material.textfield.TextInputLayout的父级(时，它会用红线显示错误，当我删除Linear布局标记时，它就会消失。当我使用太多的LinearLayout堆叠时，会有什么问题吗？
确保在应用程序级build.gradle文件中添加材料依赖项并更改
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
至
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
您是否在应用程序级build.gradle文件中添加了材料依赖项？
如果没有，则需要将其添加到渐变文件中。
api 'com.google.android.material:material:<VERSION>'