安卓XML文件中的color的写法 0x与#

在Android开发中,正确表示颜色资源对于布局文件至关重要。本文讲述了在资源文件中使用颜色时,应避免使用#开头的十六进制表示法,而采用0x开头的格式。这是因为#开头的颜色值在R文件中无法正确转换为int类型,导致编译错误。文章强调了在资源文件中,颜色必须使用0x开头的十六进制表示。

在学习安卓数组资源的时候,接触到了在数组中表示颜色,在一般layout文件中表示颜色时,可以使用颜色编辑器来找出颜色,找出来的颜色是以#开头的,最开始我也是在<item>中使用了以#开头来表示颜色,但是在运行时,R文件会标红,代码也无法运行。

原因是,以#开头的无法在资源文件中正常转化为int型,或者说不能使用#开头来表示int,于是改成0x开头,但是这样无法使用颜色编辑器,具体解决方法还在寻找。

总结:在资源文件中,表示颜色时,必须使用0x开头的十六进制,不能使用#开头的十六进制。

2025-08-21 15:34:23.621 4664-4664 OnBackInvokedCallback com.example.tapobulb W OnBackInvokedCallback is not enabled for the application. Set &#39;android:enableOnBackInvokedCallback="true"&#39; in the application manifest. 2025-08-21 15:34:23.640 4664-4664 AndroidRuntime com.example.tapobulb D Shutting down VM 2025-08-21 15:34:23.642 4664-4664 AndroidRuntime com.example.tapobulb E FATAL EXCEPTION: main Process: com.example.tapobulb, PID: 4664 android.view.InflateException: Binary XML file line #69 in com.example.tapobulb:layout/fragment_edit_auto: Binary XML file line #69 in com.example.tapobulb:layout/fragment_edit_auto: Error inflating class androidx.cardview.widget.CardView Caused by: android.view.InflateException: Binary XML file line #69 in com.example.tapobulb:layout/fragment_edit_auto: Error inflating class androidx.cardview.widget.CardView 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:883) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:1039) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:990) at android.view.LayoutInflater.rInflate(LayoutInflater.java:1169) at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1130) at android.view.LayoutInflater.inflate(LayoutInflater.java:711) at android.view.LayoutInflater.inflate(LayoutInflater.java:548) at com.example.tapobulb.databinding.FragmentEditAutoBinding.inflate(FragmentEditAutoBinding.java:59) at com.example.tapobulb.EditAutoFragment.onCreateView(EditAutoFragment.kt:26) at androidx.fragment.app.Fragment.performCreateView(Fragment.java:2963) at androidx.fragment.app.DialogFragment.performCreateView(DialogFragment.java:489) at androidx.fragment.app.FragmentStateManager.createView(FragmentStateManager.java:518) at androidx.fragment.app.FragmentStateManager.moveToExpectedState(FragmentStateManager.java:282) at androidx.fragment.app.FragmentManager.executeOpsTogether(FragmentManager.java:2189) at androidx.fragment.app.FragmentManager.removeRedundantOperationsAndExecute(FragmentManager.java:2100) at androidx.fragment.app.FragmentManager.execPendingActions(FragmentManager.java:2002) at androidx.fragment.app.FragmentManager$5.run(FragmentManager.java:524) at android.os.Handler.handleCallback(Handler.java:942) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loopOnce(Looper.java:211) at android.os.Looper.loop(Looper.java:300) at android.app.ActivityThread.main(ActivityThread.java:8321) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:581) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1028) Caused by: android.content.res.Resources$NotFoundException: Drawable com.example.tapobulb:drawable/auto_edit_selector with resource ID #0x7f070115 Caused by: android.content.res.Resources$NotFoundException: File res/drawable/auto_edit_selector.xml from drawable resource ID #0x7f070115 at android.content.res.ResourcesImpl.loadDrawableForCookie(ResourcesImpl.java:959) at android.content.res.ResourcesImpl.loadDrawable(ResourcesImpl.java:741) at android.content.res.MiuiResourcesImpl.loadDrawable(MiuiResourcesImpl.java:307) at android.content.res.Resources.loadDrawable(Resources.java:1050) at android.content.res.TypedArray.getDrawableForDensity(TypedArray.java:1020) at android.content.res.TypedArray.getDrawable(TypedArray.java:994) at android.view.View.<init>(View.java:5650) at android.view.ViewGroup.<init>(ViewGroup.java:715) at android.widget.FrameLayout.<init>(FrameLayout.java:99) at android.widget.FrameLayout.<init>(FrameLayout.java:94) at androidx.cardview.widget.CardView.<init>(CardView.java:121) at androidx.cardview.widget.CardView.<init>(CardView.java:117) at java.lang.reflect.Constructor.newInstance0(Native Method) at java.lang.reflect.Constructor.newInstance(Constructor.java:343) at android.view.LayoutInflater.createView(LayoutInflater.java:883) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:1039) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:990) at android.view.LayoutInflater.rInflate(LayoutInflater.java:1169) 2025-08-21 15:34:23.643 4664-4664 AndroidRuntime com.example.tapobulb E at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1130) at android.view.LayoutInflater.inflate(LayoutInflater.java:711) at android.view.LayoutInflater.inflate(LayoutInflater.java:548) at com.example.tapobulb.databinding.FragmentEditAutoBinding.inflate(FragmentEditAutoBinding.java:59) at com.example.tapobulb.EditAutoFragment.onCreateView(EditAutoFragment.kt:26) at androidx.fragment.app.Fragment.performCreateView(Fragment.java:2963) at androidx.fragment.app.DialogFragment.performCreateView(DialogFragment.java:489) at androidx.fragment.app.FragmentStateManager.createView(FragmentStateManager.java:518) at androidx.fragment.app.FragmentStateManager.moveToExpectedState(FragmentStateManager.java:282) at androidx.fragment.app.FragmentManager.executeOpsTogether(FragmentManager.java:2189) at androidx.fragment.app.FragmentManager.removeRedundantOperationsAndExecute(FragmentManager.java:2100) at androidx.fragment.app.FragmentManager.execPendingActions(FragmentManager.java:2002) at androidx.fragment.app.FragmentManager$5.run(FragmentManager.java:524) at android.os.Handler.handleCallback(Handler.java:942) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loopOnce(Looper.java:211) at android.os.Looper.loop(Looper.java:300) at android.app.ActivityThread.main(ActivityThread.java:8321) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:581) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1028) Caused by: android.view.InflateException: Class not found solid at android.graphics.drawable.DrawableInflater.inflateFromClass(DrawableInflater.java:219) at android.graphics.drawable.DrawableInflater.inflateFromXmlForDensity(DrawableInflater.java:138) at android.graphics.drawable.Drawable.createFromXmlInnerForDensity(Drawable.java:1420) at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:1410) at android.graphics.drawable.StateListDrawable.inflateChildElements(StateListDrawable.java:199) at android.graphics.drawable.StateListDrawable.inflate(StateListDrawable.java:126) at android.graphics.drawable.DrawableInflater.inflateFromXmlForDensity(DrawableInflater.java:141) at android.graphics.drawable.Drawable.createFromXmlInnerForDensity(Drawable.java:1420) at android.graphics.drawable.Drawable.createFromXmlForDensity(Drawable.java:1381) at android.content.res.ResourcesImpl.createFromXmlForDensity(ResourcesImpl.java:1589) at android.content.res.ResourcesImpl.loadXmlDrawable(ResourcesImpl.java:993) at android.content.res.ResourcesImpl.loadDrawableForCookie(ResourcesImpl.java:942) ... 38 more Caused by: java.lang.ClassNotFoundException: Didn&#39;t find class "solid" on path: DexPathList[[dex file "/data/data/com.example.tapobulb/code_cache/.overlay/base.apk/classes3.dex", zip file "/data/app/~~qfKlQ_Re9Cn2vwhz0ABuHA==/com.example.tapobulb-7mTS6NX91WSB2xGCrFMFtg==/base.apk"],nativeLibraryDirectories=[/data/app/~~qfKlQ_Re9Cn2vwhz0ABuHA==/com.example.tapobulb-7mTS6NX91WSB2xGCrFMFtg==/lib/arm64, /system/lib64, /system_ext/lib64]] at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:259) at java.lang.ClassLoader.loadClass(ClassLoader.java:379) at java.lang.ClassLoader.loadClass(ClassLoader.java:312) at android.graphics.drawable.DrawableInflater.inflateFromClass(DrawableInflater.java:200) ... 49 more 2025-08-21 15:34:23.645 4664-4664 OOMEventManagerFK com.example.tapobulb W Failed to mkdir /data/miuilog/stability/memleak/heapdump/ 2025-08-21 15:34:23.640 4664-4664 xample.tapobulb com.example.tapobulb W type=1400 audit(0.0:25298): avc: denied { search } for name="miuilog" dev="dm-57" ino=358 scontext=u:r:untrusted_app:s0:c27,c257,c512,c768 tcontext=u:object_r:data_log_file:s0 tclass=dir permissive=0 app=com.example.tapobulb 2025-08-21 15:34:23.640 4664-4664 xample.tapobulb com.example.tapobulb W type=1400 audit(0.0:25299): avc: denied { search } for name="miuilog" dev="dm-57" ino=358 scontext=u:r:untrusted_app:s0:c27,c257,c512,c768 tcontext=u:object_r:data_log_file:s0 tclass=dir permissive=0 app=com.example.tapobulb 2025-08-21 15:34:23.640 4664-4664 xample.tapobulb com.example.tapobulb W type=1400 audit(0.0:25300): avc: denied { search } for name="miuilog" dev="dm-57" ino=358 scontext=u:r:untrusted_app:s0:c27,c257,c512,c768 tcontext=u:object_r:data_log_file:s0 tclass=dir permissive=0 app=com.example.tapobulb 2025-08-21 15:34:23.640 4664-4664 xample.tapobulb com.example.tapobulb W type=1400 audit(0.0:25301): avc: denied { search } for name="miuilog" dev="dm-57" ino=358 scontext=u:r:untrusted_app:s0:c27,c257,c512,c768 tcontext=u:object_r:data_log_file:s0 tclass=dir permissive=0 app=com.example.tapobulb 2025-08-21 15:34:23.640 4664-4664 xample.tapobulb com.example.tapobulb W type=1400 audit(0.0:25302): avc: denied { search } for name="miuilog" dev="dm-57" ino=358 scontext=u:r:untrusted_app:s0:c27,c257,c512,c768 tcontext=u:object_r:data_log_file:s0 tclass=dir permissive=0 app=com.example.tapobulb 2025-08-21 15:34:23.640 4664-4664 xample.tapobulb com.example.tapobulb W type=1400 audit(0.0:25303): avc: denied { search } for name="miuilog" dev="dm-57" ino=358 scontext=u:r:untrusted_app:s0:c27,c257,c512,c768 tcontext=u:object_r:data_log_file:s0 tclass=dir permissive=0 app=com.example.tapobulb 2025-08-21 15:34:24.312 2423-2959 ActivityManagerWrapper pid-2423 E getRecentTasks: mainTaskId=1023 userId=0 baseIntent=Intent { act=android.intent.action.MAIN flag=268435456 cmp=ComponentInfo{com.example.tapobulb/com.example.tapobulb.MainActivity} } 2025-08-21 15:34:24.321 2423-2959 ActivityManagerWrapper pid-2423 E getRecentTasks: mainTaskId=1023 userId=0 baseIntent=Intent { act=android.intent.action.MAIN flag=268435456 cmp=ComponentInfo{com.example.tapobulb/com.example.tapobulb.MainActivity} } 这是报错
08-22
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