大佬教程收集整理的这篇文章主要介绍了Android崩溃 – 无法获得提供商,大佬教程大佬觉得挺不错的,现在分享给大家,也给大家做个参考。
<uses-sdk android:minSdkVersion="11" android:targetSdkVersion="15" /> <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/> <uses-permission android:name="android.permission.WAKE_LOCK"/> <application android:icon="@drawable/ic_launcher" android:label="@String/app_name" android:theme="@style/AppTheme" > <activity android:name=".ReminderListActivity" android:label="@String/title_activity_reminder_list" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <activity android:name=".ReminderEditActivity" android:label="@String/title_activity_reminder_edit" > </activity> <provider android:name=".ReminderListProvider" android:authorities="com.corsair.android.taskreminder.ReminderListProvider" > </provider> </application>
如您所见,我拥有完全合格的权限.我在代码中声明了一个常量用于权限(并在我创建Uri时使用它:
public static final String AUTHORITY = "com.corsair.android.taskreminder.ReminderListProvider"; // basic database info for creation public static final String DATABASE_NAME = "reminders.db"; public static final String DATABASE_TABLE_NAME = "reminders"; public static final int DATABASE_VERSION = 1; private ReminderListProviderMetaData() { } // inner class describing the Reminders Table // by implemenTing Basecolumns,we automatically get the _ID column // which is necessary for showing the DB contents in a ListView public static final class RemindersTableMetaData implements Basecolumns { private RemindersTableMetaData() { } public static final String table_NAME = "reminders"; // uri and MIME type deFinitions // info for database access // the content URI is the authority prefixed with "content://" public static final String BASE_PATH = "reminders"; public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/" + BASE_PATH);
这是我的logcat:
08-01 18:11:10.111: I/dalvikvm(1150): threadid=3: reacTing to signal 3 08-01 18:11:10.141: I/dalvikvm(1150): Wrote stack traces to '/data/anr/traces.txt' 08-01 18:11:10.481: I/dalvikvm(1150): threadid=3: reacTing to signal 3 08-01 18:11:10.694: I/dalvikvm(1150): Wrote stack traces to '/data/anr/traces.txt' 08-01 18:11:11.951: I/Process(1150): Sending signal. PID: 1150 SIG: 9 08-01 18:12:50.231: I/dalvikvm(1196): threadid=3: reacTing to signal 3 08-01 18:12:50.661: I/dalvikvm(1196): Wrote stack traces to '/data/anr/traces.txt' 08-01 18:12:50.671: I/dalvikvm(1196): threadid=3: reacTing to signal 3 08-01 18:12:50.801: I/ActivityThread(1196): Pub com.corsair.android.taskreminder.ReminderListProvider: com.corsair.android.taskreminder.ReminderListProvider 08-01 18:12:50.833: D/ReminderProvider(1196): main oncreate called 08-01 18:12:50.851: I/dalvikvm(1196): Wrote stack traces to '/data/anr/traces.txt' 08-01 18:12:50.871: D/ReminderProvider(1196): inner oncreate called 08-01 18:12:50.893: D/AndroidRuntime(1196): ShutTing down VM 08-01 18:12:50.893: W/dalvikvm(1196): threadid=1: thread exiTing with uncaught exception (group=0x409c01f8) 08-01 18:12:50.911: E/AndroidRuntime(1196): FATAL EXCEPTION: main 08-01 18:12:50.911: E/AndroidRuntime(1196): java.lang.RuntimeException: Unable to get provider com.corsair.android.taskreminder.ReminderListProvider: java.lang.NullPointerException 08-01 18:12:50.911: E/AndroidRuntime(1196): at android.app.ActivityThread.installProvider(ActivityThread.java:4240) 08-01 18:12:50.911: E/AndroidRuntime(1196): at android.app.ActivityThread.installContentProviders(ActivityThread.java:3992) 08-01 18:12:50.911: E/AndroidRuntime(1196): at android.app.ActivityThread.handleBindApplication(ActivityThread.java:3946) 08-01 18:12:50.911: E/AndroidRuntime(1196): at android.app.ActivityThread.access$1300(ActivityThread.java:123) 08-01 18:12:50.911: E/AndroidRuntime(1196): at android.app.ActivityThread$H.handlemessage(ActivityThread.java:1185) 08-01 18:12:50.911: E/AndroidRuntime(1196): at android.os.Handler.dispatchmessage(Handler.java:99) 08-01 18:12:50.911: E/AndroidRuntime(1196): at android.os.Looper.loop(Looper.java:137) 08-01 18:12:50.911: E/AndroidRuntime(1196): at android.app.ActivityThread.main(ActivityThread.java:4424) 08-01 18:12:50.911: E/AndroidRuntime(1196): at java.lang.reflect.Method.invokeNative(Native Method) 08-01 18:12:50.911: E/AndroidRuntime(1196): at java.lang.reflect.Method.invoke(Method.java:511) 08-01 18:12:50.911: E/AndroidRuntime(1196): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784) 08-01 18:12:50.911: E/AndroidRuntime(1196): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551) 08-01 18:12:50.911: E/AndroidRuntime(1196): at dalvik.system.NativeStart.main(Native Method) 08-01 18:12:50.911: E/AndroidRuntime(1196): Caused by: java.lang.NullPointerException 08-01 18:12:50.911: E/AndroidRuntime(1196): at com.corsair.android.taskreminder.ReminderListProvider$DatabaseHelper.onCreate(ReminderListProvider.java:75) 08-01 18:12:50.911: E/AndroidRuntime(1196): at com.corsair.android.taskreminder.ReminderListProvider.onCreate(ReminderListProvider.java:102) 08-01 18:12:50.911: E/AndroidRuntime(1196): at android.content.ContentProvider.attachInfo(ContentProvider.java:944) 08-01 18:12:50.911: E/AndroidRuntime(1196): at android.app.ActivityThread.installProvider(ActivityThread.java:4237) 08-01 18:12:50.911: E/AndroidRuntime(1196): ... 12 more 08-01 18:12:51.241: I/dalvikvm(1196): threadid=3: reacTing to signal 3 08-01 18:12:51.291: I/dalvikvm(1196): Wrote stack traces to '/data/anr/traces.txt' 08-01 18:12:51.541: I/dalvikvm(1196): threadid=3: reacTing to signal 3 08-01 18:12:51.601: I/dalvikvm(1196): Wrote stack traces to '/data/anr/traces.txt' 08-01 18:12:58.262: I/Process(1196): Sending signal. PID: 1196 SIG: 9
这是第75行(在logcat中引用):
@Override public void onCreate(sqliteDatabase db) { Log.d(tag,"inner oncreate called"); db.execsql(RemindersTableMetaData.database_CREATE_scheR_433_11845@A); }
这是DATABASE_CREATE_scheR_433_11845@A:
public static final String DATABASE_CREATE_scheR_433_11845@A = "create table " + DATABASE_TABLE_NAME + " (" + RemindersTableMetaData._ID + " INTEGER PRIMary key autoincrement," + REMINDER_titlE + " text not null," + REMINDER_BODY + " text not null," + REMINDER_DATE_TIME + " text not null" + ");";
这是我的ContentProvider的onCreate():
// database Helper member variable private DatabaseHelper mOpenHelper; private sqliteDatabase db; // component creation callBACk @Override public Boolean onCreate() { Log.d(tag,"main oncreate called"); mOpenHelper = new DatabaseHelper(getContext()); mOpenHelper.onCreate(db); return true; }
// this class Helps open,create,and upgrade the database private static class DatabaseHelper extends sqliteOpenHelper { public DatabaseHelper(Context context) { super(context,ReminderListProviderMetaData.database_NAME,null,ReminderListProviderMetaData.database_VERSION); }
真的在我的智慧结束这里.谢谢你的帮助.
public Boolean onCreate() { Log.d(tag,"main oncreate called"); mOpenHelper = new DatabaseHelper(getContext()); /* Remove this line next line: * 1) db is null * 2) DatabaseHelper's constructor already silently calls this */ //mOpenHelper.onCreate(db); return true; }
以上是大佬教程为你收集整理的Android崩溃 – 无法获得提供商全部内容,希望文章能够帮你解决Android崩溃 – 无法获得提供商所遇到的程序开发问题。
如果觉得大佬教程网站内容还不错,欢迎将大佬教程推荐给程序员好友。
本图文内容来源于网友网络收集整理提供,作为学习参考使用,版权属于原作者。
如您有任何意见或建议可联系处理。小编QQ:384754419,请注明来意。