[英]java.lang.ClassCastException: android.widget.EditText
这是我的 JAVA 代码。 当我运行我的应用程序时，它崩溃了，我的日志中出现以下错误
11-21 00:21:48.828: E/AndroidRuntime(349): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.geekosoft.contactsonline/com.geekosoft.contactsonline.AddContact}: java.lang.ClassCastException: android.widget.EditText
11-21 00:21:48.828: E/AndroidRuntime(349): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1647)
11-21 00:21:48.828: E/AndroidRuntime(349): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
11-21 00:21:48.828: E/AndroidRuntime(349): at android.app.ActivityThread.access$1500(ActivityThread.java:117)
11-21 00:21:48.828: E/AndroidRuntime(349): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
11-21 00:21:48.828: E/AndroidRuntime(349): at android.os.Handler.dispatchMessage(Handler.java:99)
11-21 00:21:48.828: E/AndroidRuntime(349): at android.os.Looper.loop(Looper.java:123)
11-21 00:21:48.828: E/AndroidRuntime(349): at android.app.ActivityThread.main(ActivityThread.java:3683)
11-21 00:21:48.828: E/AndroidRuntime(349): at java.lang.reflect.Method.invokeNative(Native Method)
11-21 00:21:48.828: E/AndroidRuntime(349): at java.lang.reflect.Method.invoke(Method.java:507)
11-21 00:21:48.828: E/AndroidRuntime(349): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
11-21 00:21:48.828: E/AndroidRuntime(349): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
11-21 00:21:48.828: E/AndroidRuntime(349): at dalvik.system.NativeStart.main(Native Method)
11-21 00:21:48.828: E/AndroidRuntime(349): Caused by: java.lang.ClassCastException: android.widget.EditText
11-21 00:21:48.828: E/AndroidRuntime(349): at com.geekosoft.contactsonline.AddContact.initilizeEditContactInfo(AddContact.java:123)
11-21 00:21:48.828: E/AndroidRuntime(349): at com.geekosoft.contactsonline.AddContact.initilize(AddContact.java:68)
11-21 00:21:48.828: E/AndroidRuntime(349): at com.geekosoft.contactsonline.AddContact.onCreate(AddContact.java:42)
11-21 00:21:48.828: E/AndroidRuntime(349): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
11-21 00:21:48.828: E/AndroidRuntime(349): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611)
这是我的 Java 代码
package com.geekosoft.contactsonline;
import java.util.ArrayList;
import java.util.Iterator;
import android.app.Activity;
import android.content.ContentResolver;
import android.content.Context;
import android.database.Cursor;
import android.os.Build;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.provider.ContactsContract.CommonDataKinds.Phone;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.TableLayout;
public class AddContact extends Activity implements OnClickListener {
public static final String TAG = AddContact.class.getSimpleName();
ArrayList contactPhoneTypes, contactEmailTypes, contactIMTypes, contactAddressTypes;
String contactid;
int phoneNumbersIdStarter, emailIdStarter, imIdStarter, addressIdStarter;
LayoutInflater layoutInflater;
EditText name, number;
Spinner phoneType, emailType, addressType;
Button addPhoneField, addEmailField, addIMField, addAddressField;
TableLayout phoneFiledsCont, emailFiledsCont, imFiledsCont, addressFiledsCont;
@Override
protected void onCreate (Bundle contactsOnline) {
super.onCreate(contactsOnline);
setContentView(R.layout.add_contact);
initilize();
}
public void initilize () {
initilizeSpinnerTypes();
phoneNumbersIdStarter = 1000;
emailIdStarter = 2000;
imIdStarter = 3000;
addressIdStarter = 4000;
layoutInflater = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
name = (EditText) findViewById(R.id.etContactName);
addPhoneField = (Button) findViewById(R.id.bAddPhoneField);
addEmailField = (Button) findViewById(R.id.bAddEmailField);
addIMField = (Button) findViewById(R.id.bAddIMField);
addAddressField = (Button) findViewById(R.id.bAddaddressField);
phoneFiledsCont = (TableLayout) findViewById(R.id.tlPhoneFiledCont);
emailFiledsCont = (TableLayout) findViewById(R.id.tlEmailFiledsCont);
imFiledsCont = (TableLayout) findViewById(R.id.tlIMFiledsCont);
addressFiledsCont = (TableLayout) findViewById(R.id.tlAddressFiledsCont);
addPhoneField.setOnClickListener(this);
addEmailField.setOnClickListener(this);
addIMField.setOnClickListener(this);
addAddressField.setOnClickListener(this);
initilizeEditContactInfo();
}
public void initilizeSpinnerTypes() {
contactPhoneTypes = new ArrayList();
contactPhoneTypes.add(ContactsContract.CommonDataKinds.Phone.TYPE_HOME);
contactPhoneTypes.add(ContactsContract.CommonDataKinds.Phone.TYPE_WORK);
contactPhoneTypes.add(ContactsContract.CommonDataKinds.Phone.TYPE_MOBILE);
contactPhoneTypes.add(ContactsContract.CommonDataKinds.Phone.TYPE_OTHER);
// contactPhoneTypes.add(ContactsContract.CommonDataKinds.Phone.TYPE_CUSTOM);
contactEmailTypes = new ArrayList();
contactEmailTypes.add(ContactsContract.CommonDataKinds.Email.TYPE_HOME);
contactEmailTypes.add(ContactsContract.CommonDataKinds.Email.TYPE_WORK);
contactEmailTypes.add(ContactsContract.CommonDataKinds.Email.TYPE_MOBILE);
contactEmailTypes.add(ContactsContract.CommonDataKinds.Email.TYPE_OTHER);
contactIMTypes = new ArrayList();
contactIMTypes.add(ContactsContract.CommonDataKinds.Im.TYPE_HOME);
contactIMTypes.add(ContactsContract.CommonDataKinds.Im.TYPE_WORK);
contactIMTypes.add(ContactsContract.CommonDataKinds.Im.TYPE_OTHER);
contactAddressTypes = new ArrayList();
contactAddressTypes.add(ContactsContract.CommonDataKinds.SipAddress.TYPE_HOME);
contactAddressTypes.add(ContactsContract.CommonDataKinds.SipAddress.TYPE_WORK);
contactAddressTypes.add(ContactsContract.CommonDataKinds.SipAddress.TYPE_OTHER);
}
public void initilizeEditContactInfo () {
contactid = getIntent().getStringExtra("contactId");
Log.d(TAG, "id = "+contactid);
Log.d(TAG, "query = "+ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME);
ContentResolver cr = getContentResolver();
Cursor contact = cr.query(ContactsContract.Contacts.CONTENT_URI, null, ContactsContract.CommonDataKinds.Phone._ID+" = ?",new String[]{contactid}, "DISPLAY_NAME ASC");
// Cursor contacts = cr.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,null,null, null);
if (contact.getCount() > 0) {
contact.moveToFirst();
String name = contact.getString(contact.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
Log.d(TAG, "name = "+name);
this.name.setText(name);
int loopCounter = 0;
if (Integer.parseInt(contact.getString(contact.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER))) > 0) {
Cursor phones = cr.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, ContactsContract.CommonDataKinds.Phone.CONTACT_ID+" = ?",new String[]{contactid}, null);
while (phones.moveToNext()) {
loopCounter++;
int phoneType = phones.getInt(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.TYPE));
String phoneNumber = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
Log.d(TAG, "phone = "+phoneNumber);
addTextField("phone");
EditText phoneNumberField = (EditText) findViewById(8084+phoneNumbersIdStarter);
phoneNumberField.setText(phoneNumber);
Log.d("Spinner Getting", "Spinner Id = " + (8083+phoneNumbersIdStarter));
Spinner phoneNumberSpinner = (Spinner) findViewById(8083+phoneNumbersIdStarter);
Log.d("After Spinner", "phone counter = " + phoneNumbersIdStarter);
switch (phoneType) {
case Phone.TYPE_MOBILE:
// phoneNumberSpinner.setSelection(2, false);
break;
case Phone.TYPE_HOME:
// phoneNumberSpinner.setSelection(0, false);
String phoneTypesCodes = "home = "+Phone.TYPE_HOME+"mobile = "+Phone.TYPE_MOBILE+"work = "+Phone.TYPE_WORK
+"other = "+Phone.TYPE_OTHER;
Log.d(name + "(home number)", phoneNumber + phoneTypesCodes);
break;
case Phone.TYPE_WORK:
// phoneNumberSpinner.setSelection(1, false);
break;
case Phone.TYPE_OTHER:
// phoneNumberSpinner.setSelection(3, false);
break;
}
}
phones.close();
}
}
contact.close();
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.bAddPhoneField:
addTextField("phone");
break;
case R.id.bAddEmailField:
addTextField("email");
break;
case R.id.bAddIMField:
addTextField("im");
break;
case R.id.bAddaddressField:
addTextField("address");
break;
}
}
public void addTextField(String fieldType) {
// for text field code is 84
// for spinner code is 83
if (fieldType.equals("phone")) {
// for phone number code is 80
phoneNumbersIdStarter++;
View view = layoutInflater.inflate(R.layout.add_phone_row, null);
EditText phoneNumberField = (EditText) view.findViewById(R.id.etContactPhone);
Spinner phoneTypeSpinner = (Spinner) view.findViewById(R.id.sContactPhoneType);
Log.d(TAG, "spinner id = " + phoneTypeSpinner.getId());
phoneNumberField.setId(8084+phoneNumbersIdStarter);
phoneTypeSpinner.setId(8083+phoneNumbersIdStarter);
Log.d("Spinner Created", "Spinner Id = " + phoneTypeSpinner.getId());
setSpinnerValues(phoneTypeSpinner, "phone");
phoneFiledsCont.addView(view);
} else if (fieldType.equals("email")) {
// for email code is 69
emailIdStarter++;
View view = layoutInflater.inflate(R.layout.add_email_row, null);
EditText emailAddressField = (EditText) view.findViewById(R.id.etContactEmail);
Spinner emailTypeSpinner = (Spinner) view.findViewById(R.id.sContactEmailType);
emailAddressField.setId(6984+emailIdStarter);
emailTypeSpinner.setId(6983+emailIdStarter);
Log.d(TAG, "inside true");
setSpinnerValues(emailTypeSpinner, "email");
Log.d(TAG, "inside true 2");
emailFiledsCont.addView(view);
} else if (fieldType.equals("im")) {
// for address code is 65
imIdStarter++;
View view = layoutInflater.inflate(R.layout.add_im_row, null);
EditText imField = (EditText) view.findViewById(R.id.etContactIM);
Spinner imTypeSpinner = (Spinner) view.findViewById(R.id.sContactIMType);
imField.setId(6584+imIdStarter);
imTypeSpinner.setId(6583+imIdStarter);
setSpinnerValues(imTypeSpinner, "im");
imFiledsCont.addView(view);
} else if (fieldType.equals("address")) {
// for im code is 73
addressIdStarter++;
View view = layoutInflater.inflate(R.layout.add_address_row, null);
EditText addressField = (EditText) view.findViewById(R.id.etContactAddress);
Spinner addressTypeSpinner = (Spinner) view.findViewById(R.id.sContactAddressType);
addressField.setId(7384+addressIdStarter);
addressTypeSpinner.setId(7383+addressIdStarter);
setSpinnerValues(addressTypeSpinner, "address");
addressFiledsCont.addView(view);
}
}
public void setSpinnerValues (Spinner spinner, String spinnerType) {
ArrayAdapter spinnerAdapter = new ArrayAdapter(this, android.R.layout.simple_spinner_item);
spinnerAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
Iterator iter = null;
if (spinnerType.equals("phone")) {
iter = contactPhoneTypes.iterator();
} else if (spinnerType.equals("email")) {
iter = contactEmailTypes.iterator();
} else if (spinnerType.equals("im")) {
iter = contactIMTypes.iterator();
} else if (spinnerType.equals("address")) {
iter = contactAddressTypes.iterator();
}
while (iter.hasNext()) {
if (spinnerType.equals("phone")) {
spinnerAdapter.add(ContactsContract.CommonDataKinds.Phone.getTypeLabel(this.getResources(), iter.next(), getString(R.string.undefinedTypeLabel)).toString());
} else if (spinnerType.equals("email")) {
spinnerAdapter.add(ContactsContract.CommonDataKinds.Email.getTypeLabel(this.getResources(), iter.next(), getString(R.string.undefinedTypeLabel)).toString());
} else if (spinnerType.equals("im")) {
spinnerAdapter.add(ContactsContract.CommonDataKinds.Im.getTypeLabel(this.getResources(), iter.next(), getString(R.string.undefinedTypeLabel)).toString());
} else if (spinnerType.equals("address")) {
spinnerAdapter.add(ContactsContract.CommonDataKinds.Im.getTypeLabel(this.getResources(), iter.next(), getString(R.string.undefinedTypeLabel)).toString());
}
}
spinner.setAdapter(spinnerAdapter);
spinner.setPrompt(getString(R.string.selectLabel));
}
}
这是我的 add_contact.xml
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent" android:layout_height="fill_parent">
<LinearLayout android:orientation="vertical"
android:layout_width="fill_parent" android:layout_height="wrap_content">
<TableLayout
android:layout_width="fill_parent" android:layout_height="wrap_content">
<TableRow>
<TextView android:text="Target Account"
android:layout_width="wrap_content" android:layout_height="wrap_content" />
</TableRow>
<TableRow>
<Spinner android:id="@+id/accountSpinner"
android:layout_height="wrap_content" android:layout_width="fill_parent"
android:layout_weight="1" />
</TableRow>
<TableRow>
<TextView android:text="Contact Name"
android:layout_width="wrap_content" android:layout_height="wrap_content" />
</TableRow>
<TableRow>
<EditText android:id="@+id/etContactName"
android:layout_height="wrap_content" android:layout_width="wrap_content"
android:layout_weight="1"/>
</TableRow>
<TableRow>
<TextView android:text="Contact Phone"
android:layout_width="wrap_content" android:layout_height="wrap_content"/>
</TableRow>
<TableRow>
<Button android:id="@+id/bAddPhoneField"
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:text="Add Field"/>
</TableRow>
</TableLayout>
<TableLayout android:id="@+id/tlPhoneFiledCont"
android:layout_width="fill_parent" android:layout_height="wrap_content">
</TableLayout>
<TableLayout
android:layout_width="fill_parent" android:layout_height="wrap_content">
<TableRow>
<TextView android:text="Contact Email"
android:layout_width="wrap_content" android:layout_height="wrap_content"/>
</TableRow>
</TableLayout>
<Button android:id="@+id/bAddEmailField"
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:text="Add Field"/>
<TableLayout android:id="@+id/tlEmailFiledsCont"
android:layout_width="fill_parent" android:layout_height="wrap_content">
</TableLayout>
<TextView android:text="Contact IM"
android:layout_width="wrap_content" android:layout_height="wrap_content"/>
<Button android:id="@+id/bAddIMField"
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:text="Add Field"/>
<TableLayout android:id="@+id/tlIMFiledsCont"
android:layout_width="fill_parent" android:layout_height="wrap_content">
</TableLayout>
<TextView android:text="Contact Address"
android:layout_width="wrap_content" android:layout_height="wrap_content"/>
<Button android:id="@+id/bAddaddressField"
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:text="Add Field"/>
<TableLayout android:id="@+id/tlAddressFiledsCont"
android:layout_width="fill_parent" android:layout_height="wrap_content">
</TableLayout>
<TableLayout
android:layout_width="fill_parent" android:layout_height="wrap_content">
<TableRow>
<Button android:text="@string/save"
android:layout_height="wrap_content" android:layout_width="fill_parent"
android:id="@+id/contactSaveButton" android:layout_weight="1"/>
</TableRow>
</TableLayout>
</LinearLayout>
</ScrollView>
这是我的 add_phone_row.xml
<?xml version="1.0" encoding="utf-8"?>
<TableRow xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent" android:layout_height="match_parent" >
<EditText android:id="@+id/etContactPhone"
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:layout_weight="1" android:inputType="phone" />
<Spinner android:id="@+id/sContactPhoneType"
android:layout_width="wrap_content" android:layout_height="wrap_content" />
</TableRow>
我在波纹管功能中动态创建Spinner和EditText
if (fieldType.equals("phone")) {
// for phone number code is 80
phoneNumbersIdStarter++;
View view = layoutInflater.inflate(R.layout.add_phone_row, null);
EditText phoneNumberField = (EditText) view.findViewById(R.id.etContactPhone);
Spinner phoneTypeSpinner = (Spinner) view.findViewById(R.id.sContactPhoneType);
Log.d(TAG, "spinner id = " + phoneTypeSpinner.getId());
phoneNumberField.setId(8084+phoneNumbersIdStarter);
phoneTypeSpinner.setId(8083+phoneNumbersIdStarter);
Log.d("Spinner Created", "Spinner Id = " + phoneTypeSpinner.getId());
setSpinnerValues(phoneTypeSpinner, "phone");
phoneFiledsCont.addView(view);
}
并获得如下所示的值
EditText phoneNumberField = (EditText) findViewById(8084+phoneNumbersIdStarter);
Spinner phoneNumberSpinner = (Spinner) findViewById(8083+phoneNumbersIdStarter);
每次我添加这些字段时也会在phoneNumbersIdStarter添加 1
如果我在代码中注释以下行，它运行良好
Spinner phoneNumberSpinner = (Spinner) findViewById(8083+phoneNumbersIdStarter);
您是否有不使用 R.id. 访问小部件的特定原因？
我认为使用“8083+phoneNumbersIdStarter”不是一个好主意，因为在 R 类中生成的 int id 会在每次编译中改变，所以 int 8083+phoneNumbersIdStarter 可能指的是一个不是 EditText 的小部件。
所以，改成这样：
Spinner phoneNumberSpinner = (Spinner) findViewById(R.id.your_spinner_id);
我自己发现了错误。 错误是因为 id 冲突。 因为我在单击Add Phone Button在phoneNumbersIdStarter中添加了1 。 所以我的EditText ID starer 是8084+phoneNumbersIdStarter和Spinner ID starter 8083+phoneNumbersIdStarter这就是Spinnner在第二次创建字段时与EditText冲突的原因。
通过将Spinner ID starter 从8083+phoneNumbersIdStarter更改为9083+phoneNumbersIdStarter解决了错误，如下所示，现在它运行良好。
EditText phoneNumberField = (EditText) findViewById(8084+phoneNumbersIdStarter);
Spinner phoneNumberSpinner = (Spinner) findViewById(9083+phoneNumbersIdStarter);
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[英]java.lang.ClassCastException: android.widget.RelativeLayout
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