在更改网格视图以链接 xml 布局时显示 log cat 错误
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【中文标题】在更改网格视图以链接 xml 布局时显示 log cat 错误【英文标题】：on changes to grid view to link xml layout shows log cat error 【发布时间】：2013-12-10 06:17:04 【问题描述】：我已经用新的错误更改了日志猫。Log-cat 错误再次显示相同的错误，并且模拟器在日历中单击日期后强制关闭... 我什至已经在清单中声明了所有活动，然后错误仍在继续...... 请帮忙
12-11 11:31:05.745: W/dalvikvm(483): threadid=1: thread exiting with uncaught exception (group=0x40015560)
12-11 11:31:05.755: E/androidRuntime(483): FATAL EXCEPTION: main
12-11 11:31:05.755: E/AndroidRuntime(483): android.content.ActivityNotFoundException: Unable to find explicit activity class com.examples.android.calendar/android.util.EventLog$Event; have you declared this activity in your AndroidManifest.xml?
12-11 11:31:05.755: E/AndroidRuntime(483): at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1405)
12-11 11:31:05.755: E/AndroidRuntime(483): at android.app.Instrumentation.execStartActivity(Instrumentation.java:1379)
12-11 11:31:05.755: E/AndroidRuntime(483): at android.app.Activity.startActivityForResult(Activity.java:2827)
12-11 11:31:05.755: E/AndroidRuntime(483): at android.app.Activity.startActivity(Activity.java:2933)
12-11 11:31:05.755: E/AndroidRuntime(483): at com.examples.android.calendar.CalendarView$4.onItemClick(CalendarView.java:104)
12-11 11:31:05.755: E/AndroidRuntime(483): at android.widget.AdapterView.performItemClick(AdapterView.java:284)
12-11 11:31:05.755: E/AndroidRuntime(483): at android.widget.AbsListView$PerformClick.run(AbsListView.java:1812)
12-11 11:31:05.755: E/AndroidRuntime(483): at android.os.Handler.handleCallback(Handler.java:587)
12-11 11:31:05.755: E/AndroidRuntime(483): at android.os.Handler.dispatchMessage(Handler.java:92)
12-11 11:31:05.755: E/AndroidRuntime(483): at android.os.Looper.loop(Looper.java:123)
12-11 11:31:05.755: E/AndroidRuntime(483): at android.app.ActivityThread.main(ActivityThread.java:3683)
12-11 11:31:05.755: E/AndroidRuntime(483): at java.lang.reflect.Method.invokeNative(Native Method)
12-11 11:31:05.755: E/AndroidRuntime(483): at java.lang.reflect.Method.invoke(Method.java:507)
12-11 11:31:05.755: E/AndroidRuntime(483): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
12-11 11:31:05.755: E/AndroidRuntime(483): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
12-11 11:31:05.755: E/AndroidRuntime(483): at dalvik.system.NativeStart.main(Native Method)
12-11 11:31:08.927: I/Process(483): Sending signal. PID: 483 SIG: 9
包含错误的代码在点击侦听器的网格视图中如下。
gridview.setOnItemClickListener(new OnItemClickListener()
public void onItemClick(AdapterView<?> parent, View v, int position, long id)
TextView date = (TextView)v.findViewById(R.id.date);
LayoutInflater inflate = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
if(date instanceof TextView && !date.getText().equals(""))
// Intent intent;
String day = date.getText().toString();
if(day.length()==1)
day = "0"+day;
// return chosen date as string format
/** intent.putExtra("date", android.text.format.DateFormat.format("yyyy-MM", month)+"-"+day);
setResult(RESULT_OK, intent);
finish();
*/
//Intent intent = new Intent(v.getContext(), Event.class);
Intent intent = (new Intent(CalendarView.this, Event.class));
startActivity(intent);
// RelativeLayout layoutLeft = (RelativeLayout) inflate.inflate(
// R.layout.event, null);
);
这是我的项目清单文件，我已对其进行了一些更改.....
清单文件
<application android:icon="@drawable/icon"
android:label="@string/app_name">
<activity android:name=".CalendarViewSampleActivity"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name="com.examples.android.calendar.CalendarView"
android:label="com.examples.android.calendar.CalendarView"> </activity>
<activity android:name="com.examples.android.calendar.CalendarAdapter"
android:label="com.examples.android.calendar.CalendarAdapter" > </activity>
</application>
我已经添加了我的项目的完整代码，请验证代码。从 gridview 调用新的 xml 布局的 onclick 事件显示错误。
查看日历这里是代码。
CalenderView.java 文件
package com.examples.android.calendar;
public class CalendarView extends Activity
public Calendar month;
public CalendarAdapter adapter;
public Handler handler;
public Context context;
public ArrayList<String> items; // container to store some random calendar items
public void onCreate(Bundle savedInstanceState)
super.onCreate(savedInstanceState);
setContentView(R.layout.calendar);
month = Calendar.getInstance();
onNewIntent(getIntent());
items = new ArrayList<String>();
adapter = new CalendarAdapter(this, month);
GridView gridview = (GridView) findViewById(R.id.gridview);
gridview.setAdapter(adapter);
handler = new Handler();
handler.post(calendarUpdater);
TextView title = (TextView) findViewById(R.id.title);
title.setText(android.text.format.DateFormat.format("MMMM yyyy", month));
TextView previous = (TextView) findViewById(R.id.previous);
previous.setOnClickListener(new OnClickListener()
@Override
public void onClick(View v)
if(month.get(Calendar.MONTH)== month.getActualMinimum(Calendar.MONTH))
month.set((month.get(Calendar.YEAR)-1),month.getActualMaximum(Calendar.MONTH),1);
else
month.set(Calendar.MONTH,month.get(Calendar.MONTH)-1);
refreshCalendar();
);
TextView next = (TextView) findViewById(R.id.next);
next.setOnClickListener(new OnClickListener()
@Override
public void onClick(View v)
if(month.get(Calendar.MONTH)== month.getActualMaximum(Calendar.MONTH))
month.set((month.get(Calendar.YEAR)+1),month.getActualMinimum(Calendar.MONTH),1);
else
month.set(Calendar.MONTH,month.get(Calendar.MONTH)+1);
refreshCalendar();
);
gridview.setOnItemClickListener(new OnItemClickListener()
public void onItemClick(AdapterView<?> parent, View v, int position, long id)
TextView date = (TextView)v.findViewById(R.id.date);
LayoutInflater inflate = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
if(date instanceof TextView && !date.getText().equals(""))
// Intent intent = new Intent();
String day = date.getText().toString();
if(day.length()==1)
day = "0"+day;
// return chosen date as string format
/** intent.putExtra("date", android.text.format.DateFormat.format("yyyy-MM", month)+"-"+day);
setResult(RESULT_OK, intent);
finish();
*/
//Intent intent = new Intent(v.getContext(), Event.class);
Intent intent = (new Intent(CalendarView.this, Event.class));
startActivity(intent);
// RelativeLayout layoutLeft = (RelativeLayout) inflate.inflate(
// R.layout.event, null);
);
public void refreshCalendar()
TextView title = (TextView) findViewById(R.id.title);
adapter.refreshDays();
adapter.notifyDataSetChanged();
handler.post(calendarUpdater); // generate some random calendar items
title.setText(android.text.format.DateFormat.format("MMMM yyyy", month));
public void onNewIntent(Intent intent)
String date = intent.getStringExtra("date");
String[] dateArr = date.split("-"); // date format is yyyy-mm-dd
month.set(Integer.parseInt(dateArr[0]), Integer.parseInt(dateArr[1]), Integer.parseInt(dateArr[2]));
public Runnable calendarUpdater = new Runnable()
@Override
public void run()
items.clear();
// format random values. You can implement a dedicated class to provide real values
for(int i=0;i<31;i++)
Random r = new Random();
if(r.nextInt(10)>6)
items.add(Integer.toString(i));
adapter.setItems(items);
adapter.notifyDataSetChanged();
;
此事件文件将由gridview 调用。此文件必须在日历中单击日期后显示...。 event.xml 文件
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/RelativeLayout1"
android:layout_
android:layout_
android:orientation="vertical" >
<TableLayout
android:layout_
android:layout_ >
<TableRow
android:id="@+id/tableRow1"
android:layout_
android:layout_ >
<TextView
android:id="@+id/textView1"
android:layout_
android:layout_
android:text="Event Date"
android:textAppearance="?android:attr/textAppearanceMedium" />
<android.widget.Space
android:id="@+id/space1"
android:layout_
android:layout_ />
<TextView
android:id="@+id/textView2"
android:layout_
android:layout_
android:text="Event Discription"
android:textAppearance="?android:attr/textAppearanceMedium" />
</TableRow>
<TableRow
android:id="@+id/tableRow2"
android:layout_
android:layout_ >
</TableRow>
</TableLayout>
</RelativeLayout>
Emulator 被强制停止在这个 java 文件中显示错误 CalenderViewSampleActivity.java 文件
package com.examples.android.calendar;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.Toast;
public class CalendarViewSampleActivity extends Activity
/** Called when the activity is first created. */
static final int DATE_DIALOG_ID = 0;
static final int PICK_DATE_REQUEST = 1;
@Override
public void onCreate(Bundle savedInstanceState)
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button openButton = (Button)findViewById(R.id.openButton);
openButton.setOnClickListener(new OnClickListener()
@Override
public void onClick(View v)
DatePicker dp = (DatePicker)findViewById(R.id.datePicker1);
Intent intent = new Intent(v.getContext(),CalendarView.class);
intent.putExtra("date", dp.getYear()+"-"+dp.getMonth()+"-"+dp.getDayOfMonth());
startActivityForResult(intent, PICK_DATE_REQUEST);
);
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == PICK_DATE_REQUEST)
if (resultCode == RESULT_OK)
Toast.makeText(getApplicationContext(), data.getStringExtra("date"), Toast.LENGTH_SHORT).show();
String[] dateArr = data.getStringExtra("date").split("-");
DatePicker dp = (DatePicker)findViewById(R.id.datePicker1);
dp.updateDate(Integer.parseInt(dateArr[0]), Integer.parseInt(dateArr[1]), Integer.parseInt(dateArr[2]));
CalenderAdapter.java 文件
package com.examples.android.calendar;
import java.util.ArrayList;
import java.util.Calendar;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.TextView;
public class CalendarAdapter extends BaseAdapter
static final int FIRST_DAY_OF_WEEK =0; // Sunday = 0, Monday = 1
private Context mContext;
private java.util.Calendar month;
private Calendar selectedDate;
private ArrayList<String> items;
public CalendarAdapter(Context c, Calendar monthCalendar)
month = monthCalendar;
selectedDate = (Calendar)monthCalendar.clone();
mContext = c;
month.set(Calendar.DAY_OF_MONTH, 1);
this.items = new ArrayList<String>();
refreshDays();
public void setItems(ArrayList<String> items)
for(int i = 0;i != items.size();i++)
if(items.get(i).length()==1)
items.set(i, "0" + items.get(i));
this.items = items;
public int getCount()
return days.length;
public Object getItem(int position)
return null;
public long getItemId(int position)
return 0;
// create a new view for each item referenced by the Adapter
public View getView(int position, View convertView, ViewGroup parent)
View v = convertView;
TextView dayView;
if (convertView == null) // if it's not recycled, initialize some attributes
LayoutInflater vi = (LayoutInflater)mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
v = vi.inflate(R.layout.calendar_item, null);
dayView = (TextView)v.findViewById(R.id.date);
// disable empty days from the beginning
if(days[position].equals(""))
dayView.setClickable(false);
dayView.setFocusable(false);
else
// mark current day as focused
if(month.get(Calendar.YEAR)== selectedDate.get(Calendar.YEAR) && month.get(Calendar.MONTH)== selectedDate.get(Calendar.MONTH) && days[position].equals(""+selectedDate.get(Calendar.DAY_OF_MONTH)))
v.setBackgroundResource(R.drawable.item_background_focused);
else
v.setBackgroundResource(R.drawable.list_item_background);
dayView.setText(days[position]);
// create date string for comparison
String date = days[position];
if(date.length()==1)
date = "0"+date;
String monthStr = ""+(month.get(Calendar.MONTH)+1);
if(monthStr.length()==1)
monthStr = "0"+monthStr;
// show icon if date is not empty and it exists in the items array
return v;
// refresh days of month .
public void refreshDays()
// clear items
items.clear();
int lastDay = month.getActualMaximum(Calendar.DAY_OF_MONTH);
int firstDay = (int)month.get(Calendar.DAY_OF_WEEK);
// figure size of the array
if(firstDay==1)
days = new String[lastDay+(FIRST_DAY_OF_WEEK*6)];
else
days = new String[lastDay+firstDay-(FIRST_DAY_OF_WEEK+1)];
int j=FIRST_DAY_OF_WEEK;
// populate empty days before first real day
if(firstDay>1)
for(j=0;j<firstDay-FIRST_DAY_OF_WEEK;j++)
days[j] = "";
else
for(j=0;j<FIRST_DAY_OF_WEEK*6;j++)
days[j] = "";
j=FIRST_DAY_OF_WEEK*6+1; // sunday => 1, monday => 7
// populate days
int dayNumber = 1;
for(int i=j-1;i<days.length;i++)
days[i] = ""+dayNumber;
dayNumber++;
// references to our items
public String[] days;
【问题讨论】：
你能把你的androidmanifest.xml文件和你写的代码贴出来吗..android.content.ActivityNotFoundException: Unable to find explicit activity class com.examples.android.calendar/android.util.EventLog$Event; have you declared this activity in your AndroidManifest.xml?
您可能会在您的gridview 的onItemclick 上打开另一个活动。您的 logcat 显示您忘记在清单文件中注册您的活动。确保您已在清单文件中声明您的活动。
已编辑：
您正在重定向到onItemClicklistener 上的Event 类，并且您尚未在清单文件中声明您的Event 活动。在您的清单文件中声明它。
<application android:icon="@drawable/icon"
android:label="@string/app_name">
<activity android:name=".CalendarViewSampleActivity"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".Event"> </activity> //Declared this line in your manifest.
</application>
同时删除您在清单中声明的适配器类。 <activity android:name="com.examples.android.calendar.CalendarAdapter"> </activity> 适配器从未在清单中声明。
【讨论】：
您未发布的清单所需的代码。而且您还删除了 logcat。为什么？你有 "android.content.ActivityNotFoundException" Excpetion...这意味着您没有将您的 Activity 放入 Manifest...
【讨论】：
【参考方案3】：即使你已经抗拒了，那么尝试以正确的方式放置。
我认为您已在应用程序标签之外声明您的活动。
我认为它会起作用..
<application android:icon="@drawable/icon"
android:label="@string/app_name">
<activity android:name=".CalendarViewSampleActivity"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name="com.examples.android.calendar.CalendarView"
android:label="com.examples.android.calendar.CalendarView"> </activity>
<activity android:name="com.examples.android.calendar.CalendarAdapter"
android:label="com.examples.android.calendar.CalendarAdapter" > </activity>
</application>
【讨论】：
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