相关疑难解决方法(0)

当我在我的Android项目上工作时,我发现Logcat很烦人(没有将滚动条保持在给定点),并且读到更新SDK版本添加了一个暂停按钮来解决这个问题.我更新到SDK版本17,现在我遇到了一些我之前没有的奇怪问题.我删除并添加了android支持库,但没有运气.我一直在阅读互联网,但我仍然无法弄明白.日志在下面.

03-22 15:54:18.558: E/AndroidRuntime(11597): FATAL EXCEPTION: main
03-22 15:54:18.558: E/AndroidRuntime(11597): java.lang.RuntimeException: Unable to start   activity ComponentInfo{kris.android/kris.android.ActivityPortfolio}:  android.view.InflateException: Binary XML file line #184: Error inflating class android.support.v4.view.ViewPager
03-22 15:54:18.558: E/AndroidRuntime(11597):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1821)
03-22 15:54:18.558: E/AndroidRuntime(11597):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1842)
03-22 15:54:18.558: E/AndroidRuntime(11597):    at android.app.ActivityThread.access$1500(ActivityThread.java:132)
03-22 15:54:18.558: E/AndroidRuntime(11597):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1038)
03-22 15:54:18.558: E/AndroidRuntime(11597):    at android.os.Handler.dispatchMessage(Handler.java:99)
03-22 15:54:18.558: E/AndroidRuntime(11597):    at android.os.Looper.loop(Looper.java:150)
03-22 15:54:18.558: E/AndroidRuntime(11597):    at android.app.ActivityThread.main(ActivityThread.java:4263)
03-22 15:54:18.558: E/AndroidRuntime(11597):    at java.lang.reflect.Method.invokeNative(Native Method)
03-22 15:54:18.558: E/AndroidRuntime(11597):    at java.lang.reflect.Method.invoke(Method.java:507)
03-22 15:54:18.558: E/AndroidRuntime(11597):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
03-22 15:54:18.558: E/AndroidRuntime(11597): …

我正在Android中开发一个应用程序.它必须能够拍照,并将该照片发送到网页.这是代码:

HttpClient httpclient = new DefaultHttpClient();

        HttpPost httpPost = new HttpPost("someurl");
        MultipartEntity multipartEntity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE); //Here throws the exception
        multipartEntity.addPart("data",
                new InputStreamBody(
                        new ByteArrayInputStream(byteArray),
                        "image/png"));
        multipartEntity.addPart("caption", new StringBody(filename));

        httpPost.setEntity((HttpEntity) multipartEntity);

我有我的ClassPath所需的库(httpclient,apache-mime4j-core,httpcore和httpmime).它在编译时没有显示任何错误.但是,当我运行该项目时,它会显示"java.lang.NoClassDefFoundError:org.apache.http.entity.mime.MultipartEntity",但该类存在于jar中(确切地说是在httpMime中).这是完整的痕迹:

04-09 10:21:59.362: E/AndroidRuntime(10352): FATAL EXCEPTION: main
04-09 10:21:59.362: E/AndroidRuntime(10352): java.lang.NoClassDefFoundError: org.apache.http.entity.mime.MultipartEntity
04-09 10:21:59.362: E/AndroidRuntime(10352):    at     com.publidirecta.AppAzafata.IniciarGPSActivity2.enviarImagen(IniciarGPSActivity2.java:206)
04-09 10:21:59.362: E/AndroidRuntime(10352):    at com.publidirecta.AppAzafata.IniciarGPSActivity2.onActivityResult(IniciarGPSActivity2.java:196)
04-09 10:21:59.362: E/AndroidRuntime(10352):    at android.app.Activity.dispatchActivityResult(Activity.java:3908)
04-09 10:21:59.362: E/AndroidRuntime(10352):    at android.app.ActivityThread.deliverResults(ActivityThread.java:2549)
04-09 10:21:59.362: E/AndroidRuntime(10352):    at android.app.ActivityThread.handleSendResult(ActivityThread.java:2595)
04-09 10:21:59.362: E/AndroidRuntime(10352):    at android.app.ActivityThread.access$2000(ActivityThread.java:121)
04-09 10:21:59.362: E/AndroidRuntime(10352):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:973)
04-09 10:21:59.362: …

我正在尝试将admob广告合并到我的应用中.到目前为止,我已经在我的应用程序的主要活动的onCreate方法中添加了以下代码...

    adView = new AdView(this,AdSize.BANNER,"my code number");
    adView.loadAd(new AdRequest());

程序编译没有错误,但在运行时我收到消息java.lang.NoClassDefFoundError: com.google.ads.AdView.我已经看到了问题的解释和解决方法,但是我看不出它是如何适用于我的项目的,因为我的项目中没有"lib"或"libs"目录.

根据eclipse的SDK管理器,我拥有我使用的所有内容的最新版本.

自从最新的ADT更新到第17版以来,我似乎遇到了一个棘手的问题.

我做了一个简单的应用程序来说明我的问题,我不知道我做错了什么.我的应用程序的主要活动是继承自支持包中的FragmentActivity,并且某种程度上应用程序在启动时崩溃.

为了说明,我做了一个示例项目.

首先,这里是我的虚拟类DummyProjectActivity的代码,非常简单:

public class DummyProjectActivity extends FragmentActivity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
    }
}

然后,有清单:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="be.emich.labs"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk android:minSdkVersion="8" />

    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
        <activity
            android:name=".DummyProjectActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

.jar文件在项目中正确导入,我得到了这个堆栈跟踪:

E/AndroidRuntime(11509): FATAL EXCEPTION: main
E/AndroidRuntime(11509): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{be.emich.labs/be.emich.labs.DummyProjectActivity}: java.lang.ClassNotFoundException: be.emich.labs.DummyProjectActivity
E/AndroidRuntime(11509):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1879)
E/AndroidRuntime(11509):    at …

考虑以下项目结构:

MainProject
-.idea
-.grandle
-src
-SubProject
--libs //I created this folder manually
---rxjava-core-0.16.0-sources.jar
--src
---main //+ all the sources
--build.grandle
--SubProject.iml
-build.grandle
-//other files

我下载了从的.jar http://search.maven.org/#search%7Cga%7C1%7Cg%3A%22com.netflix.rxjava%22%20AND%20a%3A%22rxjava-core%22(sources.jar ) - 但我也试过别人

然后我在SubProject中创建了lib文件夹,然后将.jar放到它上面.

在Android Studio中,我右键单击了库并选择了"Add as Library ...",其级别为:"Project Library"和模块:"SubProject".

rxjava使用包名"rx".我实现了一些导入此包的代码:

import rx.Observable;
import rx.Observer;
import rx.Subscription;
import rx.subscriptions.Subscriptions;

在发生错误发生后构建项目时:

Gradle: package rx does not exist
Gradle: package rx.util.functions does not exist
Gradle: cannot find symbol class Action1
...

我发现需要在SubProject/build.grandle上添加一行:

dependencies {
    compile 'libs/rxjava-core-0.16.0-sources.jar' //added line
    compile 'com.android.support:support-v4:19.0.0'
    compile 'com.android.support:appcompat-v7:19.0.0'
}

但它抛出:

Gradle: …

当我尝试使用admob sdk 4.3.1在我的Android应用程序中实现一个admob横幅时,我得到一个非常讨厌的ClassNotFound异常.我使用了以下实现:

表现:

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.xxx"
    android:versionCode="1"

    android:versionName="1.0" >

    <uses-sdk android:minSdkVersion="10"

        />
....
    <uses-permission android:name="android.permission.INTERNET"/>
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>

     <activity android:name="com.google.ads.AdActivity"
    android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize"/>

main.xml:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
                xmlns:ads="http://schemas.android.com/apk/lib/com.google.ads"

    android:id="@+id/bigmainlayout"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" android:background="@color/grey">
 <com.google.ads.AdView android:id="@+id/adView"
                         android:layout_width="wrap_content"
                         android:layout_height="wrap_content"
                         ads:adUnitId="xxxx"
                         ads:adSize="BANNER"
                         ads:testDevices="TEST_EMULATOR"
                         ads:loadAdOnCreate="true"/>
</LinearLayout>

Project.properties

target=android-14

错误:

03-21 22:00:25.993:E/AndroidRuntime(333):FATAL EXCEPTION:main 03-21 22:00:25.993:E/AndroidRuntime(333):java.lang.RuntimeException:无法启动活动ComponentInfo {com. xxxx/com.xxxx.MainActivity}:android.view.InflateException:二进制XML文件行#125:错误膨胀类com.google.ads.AdView 03-21 22:00:25.993:E/AndroidRuntime(333):at android .app.ActivityThread.performLaunchActivity(ActivityThread.java:1647)03-21 22:00:25.993:E/AndroidRuntime(333):at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)03-21 22:00 :25.993:E/AndroidRuntime(333):在android.app.ActivityThread.access $ 1500(ActivityThread.java:117)03-21 22:00:25.993:E/AndroidRuntime(333):在android.app.ActivityThread $ H .handleMessage(ActivityThread.java:931)03-21 22:00:25.993:E/AndroidRuntime(333):at android.os.Handler.dispatchMessage(Handler.java:99)03-21 22:00:25.993:E/AndroidRuntime(333):在android.os.Looper.loop(Looper.java:123)03-21 22:00:25.993:E/AndroidRuntime(333):在android.app.ActivityThread.main(ActivityThread.java:3683)03-21 22:00:25.993:E/AndroidRuntime(333):at java.lang.reflect.Method.invokeNative(Native Method)03-21 22 :00:25.993:E/AndroidRuntime(333):at java.lang.reflect.Method.invoke(Method.java:507)03-21 22:00:25.993:E/AndroidRuntime(333):at com.android. internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:839)03-21 22:00:25.993:E/AndroidRuntime(333):at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597 …

我的应用程序工作正常.但是一旦我从ADT 16更新到ADT 17,我就会收到此错误

Unable to resolve superclass of Lcom/my/app/MyActivity; (130)
Link of class 'Lcom/my/app/MyActivity;' failed
D/AndroidRuntime(328): Shutting down VM
W/dalvikvm(328): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
E/AndroidRuntime(328): FATAL EXCEPTION: main
E/AndroidRuntime(328): java.lang.RuntimeException: Unable to instantiate activity     ComponentInfo{com.my.app/com.my.app.MyActivity}:   java.lang.ClassNotFoundException: com.my.app.MyActivity in loader   dalvik.system.PathClassLoader[/data/app/com.my.app-1.apk]
E/AndroidRuntime(328):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2585)
E/AndroidRuntime(328):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
E/AndroidRuntime(328):  at android.app.ActivityThread.access$2300(ActivityThread.java:125)
E/AndroidRuntime(328):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
E/AndroidRuntime(328):  at android.os.Handler.dispatchMessage(Handler.java:99)
E/AndroidRuntime(328):  at android.os.Looper.loop(Looper.java:123)
E/AndroidRuntime(328):  at android.app.ActivityThread.main(ActivityThread.java:4627)
E/AndroidRuntime(328):  at java.lang.reflect.Method.invokeNative(Native Method)
E/AndroidRuntime(328):  at java.lang.reflect.Method.invoke(Method.java:521)
E/AndroidRuntime(328):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
E/AndroidRuntime(328):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
E/AndroidRuntime(328):  at dalvik.system.NativeStart.main(Native …

我正在使用greenDao访问我的Android手机中的数据库.一切似乎都很好,并且遵守.但是当我运行该程序时,它在DaoMaster.java - > OpenHelper类,createAllTables上的onCreate方法(db,false)崩溃;

以下是异常消息:

>05-03 15:40:34.109: E/AndroidRuntime(28587): FATAL EXCEPTION: main
05-03 15:40:34.109: E/AndroidRuntime(28587): java.lang.NoClassDefFoundError: com.hook38.sporttimer.model.sql.DaoMaster
05-03 15:40:34.109: E/AndroidRuntime(28587):    at com.hook38.sporttimer.model.sql.DaoMaster$OpenHelper.onCreate(DaoMaster.java:42)
05-03 15:40:34.109: E/AndroidRuntime(28587):    at android.database.sqlite.SQLiteOpenHelper.getWritableDatabase(SQLiteOpenHelper.java:165)
05-03 15:40:34.109: E/AndroidRuntime(28587):    at com.hook38.sporttimer.controller.CountdownTimerStoreController.<init>(CountdownTimerStoreController.java:32)
05-03 15:40:34.109: E/AndroidRuntime(28587):    at com.hook38.sporttimer.controller.CountdownTimerController.<init>(CountdownTimerController.java:57)
05-03 15:40:34.109: E/AndroidRuntime(28587):    at com.hook38.sporttimer.CountDownTimerActivity.onCreate(CountDownTimerActivity.java:49)
05-03 15:40:34.109: E/AndroidRuntime(28587):    at android.app.Activity.performCreate(Activity.java:4465)
05-03 15:40:34.109: E/AndroidRuntime(28587):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
05-03 15:40:34.109: E/AndroidRuntime(28587):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1920)
05-03 15:40:34.109: E/AndroidRuntime(28587):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981)
05-03 15:40:34.109: E/AndroidRuntime(28587):    at android.app.ActivityThread.access$600(ActivityThread.java:123)
05-03 15:40:34.109: E/AndroidRuntime(28587):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147)
05-03 15:40:34.109: E/AndroidRuntime(28587):    at android.os.Handler.dispatchMessage(Handler.java:99)
05-03 15:40:34.109: E/AndroidRuntime(28587):    at …

我正在获得一个包含在我的构建中包含的JAR中ClassNotFoundException的类(HSSFWorkbook).JAR列在此列表中(我正在使用Eclipse):

Project -> Properties -> Java Build Path -> Libraries

我试过删除并再次添加它,但无济于事.

我的代码如下:

// ...
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
// ...

public class XLSWorkbook {
    private HSSFWorkbook wb = null;

    // ...
    public XLSWorkbook() {
        wb = new HSSFWorkbook();
    }
}

当我尝试实例化XLSWorkbook类时抛出异常.我使用的JAR是Apache 的POI库(确切地说:poi-3.8-20120326.jar).

jdom库在那里,我已经删除并一次又一次地添加到构建路径.而且,我已多次清理该项目.但我仍然得到这个错误:

 04-27 10:51:27.867: W/ActivityThread(530): Application com.pkg.src.nhs.glos is waiting for the debugger on port 8100...
    04-27 10:51:27.936: I/System.out(530): Sending WAIT chunk
    04-27 10:51:29.396: I/dalvikvm(530): Debugger is active
    04-27 10:51:29.736: I/System.out(530): Debugger has connected
    04-27 10:51:29.746: I/System.out(530): waiting for debugger to settle...
    04-27 10:51:29.996: I/System.out(530): waiting for debugger to settle...
    04-27 10:51:30.262: I/System.out(530): waiting for debugger to settle...
    04-27 10:51:30.479: I/System.out(530): waiting for debugger to settle...
    04-27 10:51:30.689: I/System.out(530): waiting for debugger to settle...
    04-27 10:51:30.896: I/System.out(530): waiting for debugger to settle... …