最近开发的时候遇到这么一个崩溃，找了半天原因终于找到问题的原因。
Caused by: android.view.InflateException: Binary XML file line #33: Error inflating class com.qmuiteam.qmui.widget.dialog.QMUIDialogView
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 android.view.LayoutInflater.inflate(LayoutInflater.java:374)
at com.qmuiteam.qmui.widget.dialog.QMUIDialogBuilder.create(QMUIDialogBuilder.java:318)
at com.easy.easycan.me.ProfileFragment.contactService(ProfileFragment.java:224)
at com.easy.easycan.me.ProfileFragment.access$100(ProfileFragment.java:63)
at com.easy.easycan.me.ProfileFragment$5.accept(ProfileFragment.java:177)
at io.reactivex.internal.observers.LambdaObserver.onNext(LambdaObserver.java:63)
at io.reactivex.observers.SerializedObserver.onNext(SerializedObserver.java:111)
at io.reactivex.internal.operators.observable.ObservableThrottleFirstTimed$DebounceTimedObserver.onNext(ObservableThrottleFirstTimed.java:82)
at com.jakewharton.rxbinding2.view.ViewClickObservable$Listener.onClick(ViewClickObservable.java:39)
at android.view.View.performClick(View.java:6294)
at android.view.View$PerformClick.run(View.java:24770)
at android.os.Handler.handleCallback(Handler.java:790)
at android.os.Handler.dispatchMessage(Handler.java:99)
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.UnsupportedOperationException: Failed to resolve attribute at index 13: TypedValue{t=0x2/d=0x7f0302a9 a=2}
at android.content.res.TypedArray.getDrawableForDensity(TypedArray.java:944)
at android.content.res.TypedArray.getDrawable(TypedArray.java:928)
at android.view.View.<init>(View.java:4768)
at android.view.ViewGroup.<init>(ViewGroup.java:597)
at android.widget.LinearLayout.<init>(LinearLayout.java:234)
at android.widget.LinearLayout.<init>(LinearLayout.java:230)
at com.qmuiteam.qmui.alpha.QMUIAlphaLinearLayout.<init>(QMUIAlphaLinearLayout.java:39)
at com.qmuiteam.qmui.layout.QMUILinearLayout.<init>(QMUILinearLayout.java:45)
at com.qmuiteam.qmui.widget.dialog.QMUIDialogView.<init>(QMUIDialogView.java:48)
at com.qmuiteam.qmui.widget.dialog.QMUIDialogView.<init>(QMUIDialogView.java:44)
... 27 more
主要的问题是这个
Caused by: java.lang.UnsupportedOperationException: Failed to resolve attribute at index 13: TypedValue{t=0x2/d=0x7f0302a9 a=2}
这个错误是TypedArray代码抛出的
frameworks/base/core/java/android/content/res/TypedArray.java
public ColorStateList getColorStateList(int index) {
if (mRecycled) {
throw new RuntimeException("Cannot make calls to a recycled instance!");
}
final TypedValue value = mValue;
if (getValueAt(index*AssetManager.STYLE_NUM_ENTRIES, value)) {
if (value.type == TypedValue.TYPE_ATTRIBUTE) {
throw new UnsupportedOperationException(
"Failed to resolve attribute at index " + index + ": " + value);
}
return mResources.loadColorStateList(value, value.resourceId, mTheme);
}
return null;
}
上边的源码可以看出是TypedValue.TYPE_ATTRIBUTE类型就会抛出这个exception
可以看出TypedValue{t=0x2/d=0x1010351 a=1}其中的t=0x2就是指类型为2，其它含义参见代码
public String toString()
{
StringBuilder sb = new StringBuilder();
sb.append("TypedValue{t=0x").append(Integer.toHexString(type));
sb.append("/d=0x").append(Integer.toHexString(data));
if (type == TYPE_STRING) {
sb.append(" \"").append(string != null ? string : "<null>").append("\"");
}
if (assetCookie != 0) {
sb.append(" a=").append(assetCookie);
}
if (resourceId != 0) {
sb.append(" r=0x").append(Integer.toHexString(resourceId));
}
sb.append("}");
return sb.toString();
}
其中的"a="只对string有意义，这个获取的是color，所以“a=1”没啥含义
/** Additional information about where the value came from; only
* set for strings. */
public int assetCookie;
其中的d是资源id，framework中的资源id是预先指定好的，app的编译时动态确定。
frameworks/base/core/res/res/values/public.xml
<public type="attr" name="background" id="0x7f0302a9" />
其中的0x7f0302a9就是指background，报错的原因就是background最终没有确认成一个确定的值。
出现这个原因主要是因为引用了Qmui的ui库，但是activity的theme没有继承QMUI.Compat.NoActionBar，所以导致设置背景的时候找不到对应的资源出现的这个问题。绕了很大一圈，这里记录一下问题。
