我正在制作一个测试应用，并且该应用正在运行。我转移到另一个项目，并被这个错误困扰。 **
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Process: muhammadhassaan.com.tipcalculator, PID: 7646
java.lang.RuntimeException: Unable to start activity ComponentInfo{muhammadhassaan.com.tipcalculator/muhammadhassaan.com.tipcalculator.MainActivity}: android.view.InflateException: Binary XML file line #164: Binary XML file line #164: Error inflating class <unknown>
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2913)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:6669)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
Caused by: android.view.InflateException: Binary XML file line #164: Binary XML file line #164: Error inflating class <unknown>
Caused by: android.view.InflateException: Binary XML file line #164: Error inflating class <unknown>
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:647)
at com.android.internal.policy.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:58)
at android.view.LayoutInflater.onCreateView(LayoutInflater.java:720)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:788)
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 android.view.LayoutInflater.inflate(LayoutInflater.java:374)
at android.support.v7.app.AppCompatDelegateImpl.setContentView(AppCompatDelegateImpl.java:469)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140)
at muhammadhassaan.com.tipcalculator.MainActivity.onCreate(MainActivity.java:11)
at android.app.Activity.performCreate(Activity.java:7136)
at android.app.Activity.performCreate(Activity.java:7127)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1271)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2893)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:6669)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
Caused by: java.lang.UnsupportedOperationException: Failed to resolve attribute at index 5: TypedValue{t=0x2/d=0x101012d a=-1}
at android.content.res.TypedArray.getDrawableForDensity(TypedArray.java:946)
at android.content.res.TypedArray.getDrawable(TypedArray.java:930)
2019-03-05 18：39：30.350 7646-7646 / muhammadhassaan.com.tipcalculator E / AndroidRuntime：位于android.widget.LinearLayout。（LinearLayout.java:282） 在android.widget.LinearLayout。（LinearLayout.java:240） 在android.widget.LinearLayout。（LinearLayout.java:236） ...再加30
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
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:background="@color/colorBlue"
tools:context=".MainActivity">
<TextView
android:id="@+id/tvBillAmount"
android:layout_width="match_parent"
android:layout_height="38dp"
android:layout_marginStart="16dp"
android:layout_marginLeft="16dp"
android:layout_marginEnd="16dp"
android:layout_marginRight="16dp"
android:text="@string/main.msg.billamount"
android:textAppearance="?android:textAppearanceMedium"
android:textColor="@color/colorWhite"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="@+id/guideline2" />
<EditText
android:id="@+id/etBillAmount"
android:layout_width="match_parent"
android:layout_height="61dp"
android:layout_marginStart="16dp"
android:layout_marginLeft="16dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="16dp"
android:layout_marginRight="16dp"
android:background="@android:color/transparent"
android:ems="10"
android:gravity="center"
android:hint="@string/main.hint.billamount"
android:inputType="numberDecimal"
android:textAppearance="?android:textAppearanceLarge"
android:textColor="@color/colorWhite"
android:textColorHint="@color/colorGray"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="1.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/tvBillAmount" />
<View
android:id="@+id/vSeprator1"
android:layout_width="0dp"
android:layout_height="1dp"
android:layout_marginStart="16dp"
android:layout_marginLeft="16dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="16dp"
android:layout_marginRight="16dp"
android:layout_marginBottom="16dp"
android:background="@color/colorGray"
app:layout_constraintBottom_toTopOf="@+id/llRatingButtons"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/etBillAmount" />
<LinearLayout
android:id="@+id/llRatingButtons"
android:layout_width="match_parent"
android:layout_height="80dp"
android:layout_marginStart="8dp"
android:layout_marginLeft="8dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="8dp"
android:layout_marginRight="8dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/etBillAmount">
<ImageButton
android:id="@+id/ibRegularService"
android:layout_width="16dp"
android:layout_height="match_parent"
android:layout_margin="8dp"
android:layout_weight="1"
android:backgroundTint="@color/colorBlue"
android:src="@drawable/emoticon_sad">
</ImageButton>
<ImageButton
android:id="@+id/ibGoodService"
android:layout_width="16dp"
android:layout_height="match_parent"
android:layout_margin="8dp"
android:layout_weight="1"
android:backgroundTint="@color/colorBlue"
android:src="@drawable/emoticon_happy">
</ImageButton>
<ImageButton
android:id="@+id/ibExcellentService"
android:layout_width="16dp"
android:layout_height="match_parent"
android:layout_margin="8dp"
android:layout_weight="1"
android:backgroundTint="@color/colorBlue"
android:src="@drawable/emoticon">
</ImageButton>
</LinearLayout>
<android.support.constraint.Constraints
android:id="@+id/constraints"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintBottom_toTopOf="parent"
app:layout_constraintEnd_toStartOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<android.support.constraint.Guideline
android:id="@+id/guideline2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintGuide_begin="16dp" />
<View
android:id="@+id/vSeprator2"
android:layout_width="0dp"
android:layout_height="1dp"
android:layout_marginStart="16dp"
android:layout_marginLeft="16dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="16dp"
android:layout_marginRight="16dp"
android:layout_marginBottom="16dp"
android:background="@color/colorGray"
app:layout_constraintBottom_toTopOf="@+id/tvServiceText"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="1.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/llRatingButtons"
app:layout_constraintVertical_bias="0.0" />
<TextView
android:id="@+id/tvServiceText"
android:layout_width="wrap_content"
android:layout_height="0dp"
android:layout_marginStart="8dp"
android:layout_marginLeft="8dp"
android:layout_marginTop="56dp"
android:layout_marginEnd="8dp"
android:layout_marginRight="8dp"
android:text="@string/main.msg.servicerating"
android:textAppearance="?android:textAppearanceMedium"
android:textColor="@color/colorWhite"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.028"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/llRatingButtons" />
<LinearLayout
android:id="@+id/linearLayout"
android:layout_width="0dp"
android:layout_height="80dp"
android:layout_marginStart="8dp"
android:layout_marginLeft="8dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="8dp"
android:layout_marginRight="8dp"
android:divider="?android:horizontalDivider"
android:orientation="horizontal"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/tvServiceText">
<TextView
android:id="@+id/tvTipPercent"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_margin="8dp"
android:layout_weight="1"
android:gravity="center"
android:text="@string/main.msg.tippercent"
android:textColor="@color/colorWhite" />
<TextView
android:id="@+id/tvTipTotal"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_margin="8dp"
android:layout_weight="1"
android:gravity="center"
android:text="@string/main.msg.tiptotal"
android:textColor="@color/colorWhite" />
</LinearLayout>
<TextView
android:id="@+id/tvBillAmountText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginLeft="8dp"
android:layout_marginEnd="8dp"
android:layout_marginRight="8dp"
android:layout_marginBottom="16dp"
android:text="@string/main.msg.billtotal"
android:textAppearance="?android:textAppearanceMedium"
android:textColor="@color/colorWhite"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent" />
<TextView
android:id="@+id/tvBillAmountResult"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginLeft="8dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="8dp"
android:layout_marginRight="8dp"
android:layout_marginBottom="16dp"
android:text="@string/main.msg.billtotalresult"
android:textAppearance="?android:textAppearanceLarge"
android:textColor="@color/colorWhite"
app:layout_constraintBottom_toTopOf="@+id/tvBillAmountText"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/linearLayout"
app:layout_constraintVertical_bias="1.0" />
</android.support.constraint.ConstraintLayout>
