最近,仅 (魅族M5c,魅族M5,魅族M5注意)的魅族设备在我的Android应用上发生了崩溃。 Android版本:6.0。
这是完整的堆栈跟踪:
Fatal Exception: java.lang.NullPointerException: Attempt to invoke virtual method 'int android.text.Layout.getLineForOffset(int)' on a null object reference
at android.widget.Editor.updateCursorPositionMz(Editor.java:6964)
at android.widget.Editor.updateCursorsPositions(Editor.java:1760)
at android.widget.TextView.getUpdatedHighlightPath(TextView.java:5689)
at android.widget.TextView.onDraw(TextView.java:5882)
at android.view.View.draw(View.java:16539)
at android.view.View.updateDisplayListIfDirty(View.java:15492)
at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:3719)
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3699)
at android.view.View.updateDisplayListIfDirty(View.java:15443)
at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:3719)
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3699)
at android.view.View.updateDisplayListIfDirty(View.java:15443)
at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:3719)
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3699)
at android.view.View.updateDisplayListIfDirty(View.java:15443)
at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:3719)
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3699)
at android.view.View.updateDisplayListIfDirty(View.java:15443)
at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:3719)
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3699)
at android.view.View.updateDisplayListIfDirty(View.java:15443)
at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:3719)
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3699)
at android.view.View.updateDisplayListIfDirty(View.java:15443)
at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:3719)
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3699)
at android.view.View.updateDisplayListIfDirty(View.java:15443)
at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:3719)
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3699)
at android.view.View.updateDisplayListIfDirty(View.java:15443)
at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:3719)
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3699)
at android.view.View.updateDisplayListIfDirty(View.java:15443)
at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:3719)
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3699)
at android.view.View.updateDisplayListIfDirty(View.java:15443)
at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:3719)
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3699)
at android.view.View.updateDisplayListIfDirty(View.java:15443)
at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:3719)
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3699)
at android.view.View.updateDisplayListIfDirty(View.java:15443)
at android.view.ThreadedRenderer.updateViewTreeDisplayList(ThreadedRenderer.java:286)
at android.view.ThreadedRenderer.updateRootDisplayList(ThreadedRenderer.java:292)
at android.view.ThreadedRenderer.draw(ThreadedRenderer.java:327)
at android.view.ViewRootImpl.draw(ViewRootImpl.java:3051)
at android.view.ViewRootImpl.performDraw(ViewRootImpl.java:2855)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2464)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1337)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6819)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:894)
at android.view.Choreographer.doCallbacks(Choreographer.java:696)
at android.view.Choreographer.doFrame(Choreographer.java:631)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:880)
at android.os.Handler.handleCallback(Handler.java:815)
at android.os.Handler.dispatchMessage(Handler.java:104)
at android.os.Looper.loop(Looper.java:207)
at android.app.ActivityThread.main(ActivityThread.java:5969)
at java.lang.reflect.Method.invoke(Method.java)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:830)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:720)
与我的代码没有直接关系(即使在其他线程的stracktrace中也是如此)。我只知道它每次都会在存在TextViews的Fragment中发生。当TextView获得关注时,可能会发生,但我无法确定。当然,除非购买魅族,否则我无法重现该错误。
另外,由于顶级方法称为updateCursorPositionMz
,在我看来这可能是魅族FlymeOS的内部问题(“ Mz” =“魅族”?)。
有人有这个问题吗,知道原因以及如何解决?
谢谢。
答案 0 :(得分:35)
最后我有机会把手放在魅族上。如我所料,每次用户单击字段以获取焦点时都会发生崩溃。
就我而言,我在android.support.design.widget.TextInputEditText
内有一些TextInputLayout
。只需将这些TextInputEditText
替换为AppCompatEditText
即可解决此问题,就像这样:
<android.support.design.widget.TextInputLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="...">
<android.support.v7.widget.AppCompatEditText
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</android.support.design.widget.TextInputLayout>
行为保持不变(因为TextInputEditText
扩展了AppCompatEditText
)。我仍然没有找到问题的根本原因。
答案 1 :(得分:6)
这已在Android lib的素材组件中得到修复,请参见: https://github.com/material-components/material-components-android/pull/358
答案 2 :(得分:5)
就我而言,我验证了使用AppCompatEditText
而不是TextInputEditText
确实可以防止崩溃,但是我们无法使用此解决方案。我们正在使用带有扩展了TextInputEditText
的视图的sdk,因此切换到AppCompatEditText
将需要将相当多的sdk代码复制/修改到我们的项目中。
我尝试在TextInputEditText
和TextInputLayout
上都设置了提示,但最终还是看到了一个双重提示(例如模糊的文字,我确定我没有喝太多)。
我看了@Andrew链接的GitHub问题:https://github.com/android-in-china/Compatibility/issues/11
在该问题中,他们解释说,根本原因是TextInputEditText.getHint()
与TextInputEditText.mHint
不同时魅族的问题。
当TextInputEditText
内的TextInputLayout
内并且在TextInputEditText
的xml中指定了提示时,支持库基本上将提示“移动”到包含的{{1} }:将其设置在容器上,然后在编辑文本上将其设置为null。
执行此操作的来源在TextInputLayout.setEditText()中:
TextInputLayout
然后,当您调用 // If we do not have a valid hint, try and retrieve it from the EditText, if enabled
if (hintEnabled) {
if (TextUtils.isEmpty(hint)) {
// Save the hint so it can be restored on dispatchProvideAutofillStructure();
originalHint = this.editText.getHint();
setHint(originalHint);
// Clear the EditText's hint as we will display it ourselves
this.editText.setHint(null);
}
时,它将返回容器的提示。
TextInputEditText.getHint()
(提示值)和getHint()
(空值)之间的这种不一致似乎为魅族设备带来了问题
我找到了避免此问题的另一种方法。
在魅族设备上,我:
1)以编程方式将mHint
的提示重置为最初从xml设置的提示(通过调用其覆盖的TextInputEditText
来返回容器的提示)。
2)将getHint()
的提示颜色设置为透明,以避免出现双重/模糊提示效果:
TextInputEditText
答案 3 :(得分:2)
在TextInputLayout
和TextInputEditText
上都添加提示为我修复了崩溃:
<android.support.design.widget.TextInputLayout
android:id="@+id/text_input_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="@string/login"
app:hintAnimationEnabled="false">
<android.support.design.widget.TextInputEditText
android:id="@+id/text_input_edit_text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="@string/login" />
</android.support.design.widget.TextInputLayout>
最后以编程方式重置TextInputEditText
的提示,以避免提示文本的颜色很深:
editText = findViewById(R.id.text_input_edit_text);
editText.setHint("");
在装有Android 6.0的魅族MX6上进行了验证
答案 4 :(得分:2)
我的解决方案基于https://github.com/android-in-china/Compatibility/issues/11#issuecomment-427560370中提到的FixedTextInputEditText
。
首先,我创建了一个固定的TextInputEditText
实例:
public class MeizuTextInputEditText extends TextInputEditText {
public MeizuTextInputEditText(Context context) {
super(context);
}
public MeizuTextInputEditText(Context context, AttributeSet attrs) {
super(context, attrs);
}
public MeizuTextInputEditText(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
@Override
public CharSequence getHint() {
try {
return getMeizuHintHack();
} catch (Exception e) {
return super.getHint();
}
}
private CharSequence getMeizuHintHack() throws NoSuchFieldException, IllegalAccessException {
Field textView = TextView.class.getDeclaredField("mHint");
textView.setAccessible(true);
return (CharSequence) textView.get(this);
}
}
但是随后我将不得不用TextInputEditText
替换所有MeizuTextInputEditText
的用法,这在较大的代码库上是不容易实现的。同样,在创建将来的视图时,您始终需要考虑使用MeizuTextInputEditText
而不是“残破的”视图。忘记它会很容易再次引起生产问题。
因此,最终的解决方案包括自定义视图类,再加上ViewPump库(https://github.com/InflationX/ViewPump),我们可以轻松地做到这一点。正如文档中所述,您需要注册一个类似于以下内容的自定义拦截器:
public class TextInputEditTextInterceptor implements Interceptor {
@Override
public InflateResult intercept(Chain chain) {
InflateRequest request = chain.request();
View view = inflateView(request.name(), request.context(), request.attrs());
if (view != null) {
return InflateResult.builder()
.view(view)
.name(view.getClass().getName())
.context(request.context())
.attrs(request.attrs())
.build();
} else {
return chain.proceed(request);
}
}
@Nullable
private View inflateView(String name, Context context, AttributeSet attrs) {
if (name.endsWith("TextInputEditText")) {
return new MeizuTextInputEditText(context, attrs);
}
return null;
}
}
然后通过在活动的onCreate上设置一个ViewPump来注册该自定义拦截器,就像在文档中一样:
@Override
@CallSuper
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
ViewPump.Builder viewPumpBuilder = ViewPump.builder();
if (isMeizuDevice()) {
viewPumpBuilder.addInterceptor(new TextInputEditTextInterceptor());
}
ViewPump.init(viewPumpBuilder.build());
}
如您所见,如果检测到魅族设备,我只会给MeizuTextInputEditText
充气。这样,对于不需要反射的设备不会触发该反射。同样,此方法是我具有的基本Activity类,项目中的所有其他活动都从该类中扩展,因此,在我的项目中启动且设备为魅族的每个活动都将自动修复!
答案 5 :(得分:1)
从xml删除提示 :从 TextInputLayout 或 TextInputEditText 中删除。
用于材料组件
<com.google.android.material.textfield.TextInputLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<com.google.android.material.textfield.TextInputEditText
android:id="@+id/text_input_edit_text"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</com.google.android.material.textfield.TextInputLayout>
获得设计支持
<android.support.design.widget.TextInputLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.design.widget.TextInputEditText
android:id="@+id/text_input_edit_text"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</android.support.design.widget.TextInputLayout>
在您的代码中设置设置提示以编程方式:
val myTextInputEditText = findViewById<TextInputEditText>(R.id.text_input_edit_text)
myTextInputEditText.hint = "Your hint"
在魅族M5S ,Android 6.0上进行了测试
答案 6 :(得分:1)
我正在使用Kotlin和Fragments,我只是递归地修复了onViewCreated中的所有文本输入。
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
super.onViewCreated(view, savedInstanceState)
fixTextInputEditText(view) // call this in onViewCreated
}
private fun fixTextInputEditText(view: View) {
val manufacturer = Build.MANUFACTURER.toUpperCase(Locale.US)
if ("MEIZU" in manufacturer) {
val views = getAllTextInputs(view)
views.forEach(::hackFixHintsForMeizu)
}
}
private fun getAllTextInputs(v: View): List<TextInputEditText> {
if (v !is ViewGroup) {
val editTexts = mutableListOf<TextInputEditText>()
(v as? TextInputEditText)?.let {
editTexts += it
}
return editTexts
}
val result = mutableListOf<TextInputEditText>()
for (i in 0 until v.childCount) {
val child = v.getChildAt(i)
result += getAllTextInputs(child)
}
return result
}
private fun hackFixHintsForMeizu(editText: TextInputEditText) {
if (editText.hint != null) {
editText.setHintTextColor(Color.TRANSPARENT)
editText.hint = editText.hint
}
}
答案 7 :(得分:1)
此修复程序现在包含在以下新的材料组件版本中:https://github.com/material-components/material-components-android/releases/tag/1.1.0-alpha09
答案 8 :(得分:0)
以上所有变体都无需修改即可对我起作用。
我的应用使用片段,有时不使用TextInputLayout时使用TextInputEditText,此时不选择升级到最新的AndroidX,此时也不选择替换TextInputEditText。
我的版本(基于这些解决方案和Google的修复程序):
import android.os.Build
import java.util.*
import android.content.Context
import android.support.design.widget.TextInputEditText
import android.util.AttributeSet
import android.widget.TextView
import android.support.design.widget.TextInputLayout
import android.view.inputmethod.EditorInfo
import android.view.inputmethod.InputConnection
import java.lang.reflect.Field
import java.lang.reflect.Method
import android.support.design.R
class MyInputEditText(context: Context?, attrs: AttributeSet?,defStyleAttr:Int) : TextInputEditText(context, attrs,defStyleAttr){
constructor(context: Context?, attrs: AttributeSet?):this(context,attrs,R.attr.editTextStyle)
constructor(context: Context?):this(context,null,R.attr.editTextStyle)
private val buggyMeizu = ("meizu") in Build.MANUFACTURER.toLowerCase(Locale.US)
private lateinit var getTextInputLayoutMethod:Method
private lateinit var providesHintMethod:Method
private lateinit var mHintField:Field
init {
if (buggyMeizu) {
getTextInputLayoutMethod=TextInputEditText::class.java.getDeclaredMethod("getTextInputLayout")
getTextInputLayoutMethod.isAccessible=true
providesHintMethod=TextInputLayout::class.java.getDeclaredMethod("isProvidingHint")
providesHintMethod.isAccessible=true
mHintField=TextView::class.java.getDeclaredField("mHint")
mHintField.isAccessible=true
}
}
private fun getTILProvidesHint():Boolean {
val layout=getTIL()
if (layout!=null) {
val result=providesHintMethod.invoke(layout) as Boolean
return result;
} else {
return false
}
}
private fun getTIL():TextInputLayout? = getTextInputLayoutMethod.invoke(this) as TextInputLayout?
private fun getBaseHint():CharSequence? = mHintField.get(this) as CharSequence?
override fun getHint(): CharSequence? {
if (!buggyMeizu) {
return super.getHint()
} else {
val layout=getTIL()
return if (layout != null && (getTILProvidesHint()) )
layout.hint
else
provideHintWrapped()
}
}
override fun onCreateInputConnection(outAttrs: EditorInfo): InputConnection? {
val needHint=(outAttrs.hintText==null)
val ic = super.onCreateInputConnection(outAttrs)
if (buggyMeizu) {
if (ic != null && needHint) {
outAttrs.hintText = this.provideHintWrapped()
}
}
return ic
}
private fun provideHintWrapped():CharSequence? {
val hintFromLayout=getHintFromLayoutMine()
if (hintFromLayout!=null) {
return hintFromLayout
} else {
val baseHint=getBaseHint()
if (baseHint!=null) {
return baseHint
} else {
return null
}
}
}
private fun getHintFromLayoutMine(): CharSequence? {
val layout = getTIL()
return layout?.hint
}
override fun onAttachedToWindow() {
if (buggyMeizu) {
val baseHint=getBaseHint()
if (getTIL() != null
&& getTILProvidesHint()
&& baseHint == null) {
this.hint=""
}
}
super.onAttachedToWindow()
}
}
之后,在所有布局和代码文件中使用MyInputEditText查找并替换TextInputEditText。