Question

我正在创建一个博客类的应用程序，它有博客标题，描述和图像。标题和描述通过firebase完美地脱机同步。

但在我的Android应用程序中通过 okhttp 通过 picasso 在我的Android应用程序（使用firebase ）申请离线图片视图后，该应用程序崩溃首次启动时。依赖项已添加到bulid.gradle文件中。

下面的代码粘贴在我的startactivity中（它是一个启动画面）。

错误日志：

  FirebaseDatabase.getInstance().setPersistenceEnabled(true);

                Picasso.Builder builder = new Picasso.Builder(this);
                builder.downloader(new OkHttpDownloader(this,Integer.MAX_VALUE));
                Picasso built = builder.build();
                built.setIndicatorsEnabled(false);
                built.setLoggingEnabled(true);
                Picasso.setSingletonInstance(built);

这是依赖项的gradlw文件：

03-02 13:04:15.325 2362-2362/? E/AndroidRuntime: FATAL EXCEPTION: main
                                             Process: com.dest.ola, PID: 2362
                                             java.lang.NoClassDefFoundError: Failed resolution of: Lcom/squareup/okhttp/OkHttpClient;
                                                 at com.squareup.picasso.OkHttpDownloader.defaultOkHttpClient(OkHttpDownloader.java:31)
                                                 at com.squareup.picasso.OkHttpDownloader.<init>(OkHttpDownloader.java:76)
                                                 at com.squareup.picasso.OkHttpDownloader.<init>(OkHttpDownloader.java:65)
                                                 at com.destiny.offrruu.StartActivity.onCreate(StartActivity.java:33)
                                                 at android.app.Activity.performCreate(Activity.java:5990)
                                                 at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)
                                                 at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2332)
                                                 at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2442)
                                                 at android.app.ActivityThread.access$800(ActivityThread.java:156)
                                                 at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1351)
                                                 at android.os.Handler.dispatchMessage(Handler.java:102)
                                                 at android.os.Looper.loop(Looper.java:211)
                                                 at android.app.ActivityThread.main(ActivityThread.java:5371)
                                                 at java.lang.reflect.Method.invoke(Native Method)
                                                 at java.lang.reflect.Method.invoke(Method.java:372)
                                                 at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:945)
                                                 at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:740)
                                              Caused by: java.lang.ClassNotFoundException: Didn't find class "com.squareup.okhttp.OkHttpClient" on path: DexPathList[[zip file "/data/app/com.dest.ola-2/base.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]
                                                 at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
                                                 at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
                                                 at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
                                                 at com.squareup.picasso.OkHttpDownloader.defaultOkHttpClient(OkHttpDownloader.java:31) 
                                                 at com.squareup.picasso.OkHttpDownloader.<init>(OkHttpDownloader.java:76) 
                                                 at com.squareup.picasso.OkHttpDownloader.<init>(OkHttpDownloader.java:65) 
                                                 at com.destiny.offrruu.StartActivity.onCreate(StartActivity.java:33) 
                                                 at android.app.Activity.performCreate(Activity.java:5990) 
                                                 at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106) 
                                                 at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2332) 
                                                 at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2442) 
                                                 at android.app.ActivityThread.access$800(ActivityThread.java:156) 
                                                 at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1351) 
                                                 at android.os.Handler.dispatchMessage(Handler.java:102) 
                                                 at android.os.Looper.loop(Looper.java:211) 
                                                 at android.app.ActivityThread.main(ActivityThread.java:5371) 
                                                 at java.lang.reflect.Method.invoke(Native Method) 
                                                 at java.lang.reflect.Method.invoke(Method.java:372) 
                                                 at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:945) 
                                                 at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:740) 
                                                Suppressed: java.lang.ClassNotFoundException: com.squareup.okhttp.OkHttpClient
                                                 at java.lang.Class.classForName(Native Method)
                                                 at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
                                                 at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
                                                 at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
                                                        ... 18 more
                                              Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available

我有点谷歌，并喜欢下面的代码中的“L”（Lcom）让android迷惑。

dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:25.1.0'
compile 'com.android.support:design:25.1.0'
compile 'com.android.support:recyclerview-v7:25.1.0'
compile 'com.google.android.gms:play-services-ads:10.0.1'
compile 'com.squareup.picasso:picasso:2.5.2'
compile 'com.squareup.okhttp3:okhttp:3.6.0'
compile 'com.squareup.okio:okio:1.11.0'}

请让我知道解决方案。

Answer 1

那么这不是一个合适的解决方案，但似乎okhttp库中存在一些错误。

要解决此错误，我只需用旧版本的okhttp

替换我的gradle

    compile 'com.squareup.okhttp:okhttp:2.5.0'

而不是

compile 'com.squareup.okhttp3:okhttp:3.6.0'

它就像一个魅力。三江源。

通过okhhtp，picasso应用离线图像查看代码后，Android应用程序崩溃

1 个答案: