我在TextView编写了自定义视图，其中包含EditText和LinearLayout。
但是在Orientation Change我得到了错误：
java.lang.RuntimeException: Unable to start activity ComponentInfo{ge.altasoft.datacollector/ge.altasoft.datacollector.ViewPagerActivity}: java.lang.ClassCastException: android.widget.TextView$SavedState cannot be cast to android.widget.AbsSpinner$SavedState
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2097)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2122)
at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:3550)
at android.app.ActivityThread.access$700(ActivityThread.java:140)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4895)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:994)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:761)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassCastException: android.widget.TextView$SavedState cannot be cast to android.widget.AbsSpinner$SavedState
at android.widget.AbsSpinner.onRestoreInstanceState(AbsSpinner.java:426)
at android.view.View.dispatchRestoreInstanceState(View.java:12217)
at android.view.ViewGroup.dispatchThawSelfOnly(ViewGroup.java:2613)
at android.widget.AdapterView.dispatchRestoreInstanceState(AdapterView.java:790)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:2599)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:2599)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:2599)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:2599)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:2599)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:2599)
at android.view.View.restoreHierarchyState(View.java:12195)
at android.support.v4.app.Fragment.restoreViewState(Fragment.java:417)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:933)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1088)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1070)
at android.support.v4.app.FragmentManagerImpl.dispatchActivityCreated(FragmentManager.java:1861)
at android.support.v4.app.FragmentActivity.onStart(FragmentActivity.java:547)
at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1178)
at android.app.Activity.performStart(Activity.java:5173)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2070)
... 12 more
这是我的代码：
XEditText 类：
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Color;
import android.os.Parcelable;
import android.text.Editable;
import android.text.TextWatcher;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.View;
import android.view.inputmethod.EditorInfo;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.TextView;
import java.util.StringTokenizer;
import ge.altasoft.datacollector.R;
/**
* .
*/
public class XEditText extends LinearLayout {
private LayoutInflater inflater;
private View view;
private TextView label;
private EditText edit;
private String viewParameter, textLabel;
private int dafarvisTarigiId = -1, gacemisTarigiId = -1;
private boolean xTextChanged = true;
public XEditText(Context context, AttributeSet attrs) {
super(context, attrs);
initViews();
getViewAttributes(context, attrs);
addListeners();
}
public String getXViewParameter(){
return String.valueOf(this.viewParameter);
}
public String getXValue(){
return String.valueOf(this.edit.getText());
}
public void setXValue(String xValue) {
this.edit.setText(String.valueOf(xValue));
}
public void setXTextChanged (boolean ch) {
this.xTextChanged = ch;
}
private void initViews(){
inflater = (LayoutInflater) getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = inflater.inflate(R.layout.x_edittext_view, this, true);
label = (TextView) findViewById(R.id.label);
edit = (EditText) findViewById(R.id.input);
}
/**
* Getting all attributes of view Id-s.
*
* @param context
* @param attrs
*/
private void getViewAttributes(Context context, AttributeSet attrs) {
TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.XEditText);
final int N = a.getIndexCount();
for(int i = 0; i < N; i++){
int attr = a.getIndex(i);
switch(attr){
case R.styleable.XEditText_textLabel:
textLabel = a.getString(attr);
label.setText(String.valueOf(textLabel));
break;
case R.styleable.XEditText_viewParameter:
viewParameter = a.getString(attr);
break;
case R.styleable.XEditText_dafarvisTarigi:
dafarvisTarigiId = a.getResourceId(attr, -1);
break;
case R.styleable.XEditText_gacemisTarigi:
gacemisTarigiId = a.getResourceId(attr, -1);
break;
case R.styleable.XEditText_android_inputType:
int inputType = a.getInt(attr, EditorInfo.TYPE_TEXT_VARIATION_NORMAL);
edit.setInputType(inputType);
break;
}
}
a.recycle();
}
private void addListeners() {
this.edit.setOnFocusChangeListener(new OnFocusChangeListener() {
@Override
public void onFocusChange(View v, boolean hasFocus) {
if (hasFocus) {
((LinearLayout) v.getParent()).setBackgroundColor(Color.LTGRAY);
} else {
((LinearLayout) v.getParent()).setBackgroundColor(Color.TRANSPARENT);
}
}
});
if(gacemisTarigiId != -1 && dafarvisTarigiId != -1){
Watcher watch = new Watcher(this);
this.edit.addTextChangedListener(watch);
}else
return;
}
private class Watcher implements TextWatcher{
private XEditText edit;
public Watcher(XEditText xEditText) {
this.edit = xEditText;
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
@Override
public void afterTextChanged(Editable s) {
if(!edit.xTextChanged){
edit.setXTextChanged(true);
return;
}
XDatePickerView dafarvisTarigi = (XDatePickerView) edit.getRootView().findViewById(dafarvisTarigiId);
XDatePickerView gacemisTarigi = (XDatePickerView) edit.getRootView().findViewById(gacemisTarigiId);
String gacTar = gacemisTarigi.getXValue();
if(gacTar.equals(""))
return;
StringTokenizer tk = new StringTokenizer(gacTar, "- ");
int gacMonth = Integer.parseInt(tk.nextToken());
int gacDay = Integer.parseInt(tk.nextToken());
int gacYear = Integer.parseInt(tk.nextToken());
if(s.toString().equals("")){
dafarvisTarigi.setXTextChanged(false);
dafarvisTarigi.setXValue(getResources().getString(R.string.x_dat_view_txt));
} else {
int months = Integer.parseInt(String.valueOf(s.toString()));
int addYear = (months + gacMonth) / 12;
int addMonth = months - addYear * 12;
dafarvisTarigi.setXTextChanged(false);
dafarvisTarigi.setXValue(new StringBuilder().append(gacMonth + addMonth)
.append("-").append(gacDay).append("-").append(gacYear + addYear).append(" ").toString());
}
}
}
}
x_edittext_view.xml 布局：
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:id="@+id/label"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:layout_weight="@dimen/textLabel_weight" />
<EditText
android:id="@+id/input"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="@dimen/inputView_weight" />
</LinearLayout>
在主要布局：
中<LinearLayout
android:id="@+id/linear"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<ge.altasoft.custom_views.XEditText
android:id="@+id/first_name"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:inputType="phone"
custom:textLabel="სახელი"
custom:viewParameter="opaaa"/>
</LinearLayout>
我认为，该问题出现在TextView课程的CustomView中。我将TextView文本作为自定义XEditText传递给Attribute，然后在创建XEditText期间设置它。但我不确定这是不是问题。
编辑1： 关于我的主要活动：我正在使用ViewPager，这是我使用此布局的片段：
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import java.io.Serializable;
import java.util.ArrayList;
import ge.altasoft.Item.DetailsItemI;
import ge.altasoft.controllers.ViewFillerController;
public class OrdinaryFragment extends Fragment implements Serializable{
private static final String LAYOUT_ID = "LayoutId";
private int layoutId;
public static final String ARG_SECTION_NUMBER = "section_number";
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
this.setRetainInstance(true);
layoutId = getArguments().getInt(LAYOUT_ID);
View rootView = inflater.inflate(layoutId, container, false);
ArrayList<DetailsItemI> list = (ArrayList<DetailsItemI>)getArguments().getSerializable("ViewData");
ViewFillerController viewFiller = new ViewFillerController();
viewFiller.fillTheView(rootView, list);
return rootView;
}
}
感谢Advnace。
答案 0 :(得分：0)
我找到了问题的Solution。
问题出在Bad Cast，正如Error告诉我的那样。
正如我所说，我有很多Custom Views，所有这些都由2个组成部分组成：TextView和一些Input Type View。所有TextViews和所有Input Type Views都有相同的Id - s，尽管它是类型。
例如，如果我有2个Custom Views，EditText Type和Spinner Type，那么在方向更改时，android会尝试cast editText SavedState到Spinner SavedState，应用程序崩溃了。
所以我刚刚改变了Id - s，一切顺利。
感谢大家，感谢您的帮助。