err:Cannot access android.support.v4.app.BaseFragmentActivityApi16。统一配置管理sdkVersion

博客指出出现Cannot access android.support.v4.app.BaseFragmentActivityApi16错误,是因导入新module更改SdkVersion版本,部分模块版本未改所致。推荐在模块较多时统一配置sdkVersion,并给出在根gradle里添加及对应module中替换的配置方法,还提醒dependencies使用时引号替换。

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最近出现这么一个错误Cannot access android.support.v4.app.BaseFragmentActivityApi16

也怪自己粗心,,这是由于导入了新的module,更改了SdkVersion版本,而有的模块版本忘了改,就出现了这个错误。

所以在module比较多的时候,推荐统一配置sdkVersion

配置方法个人推荐下面的方式:

在根gradle里添加

ext {
    var = [
            // SDK And Tools
            minSdkVersion        : 19,
            targetSdkVersion     : 28,
            compileSdkVersion    : 28,
            versionName          : "1.0.0",
            //Dependencies
            supportLibraryVersion: "28.0.0"
    ]
}

使用方式:在对应的module中替换

    compileSdkVersion var.compileSdkVersion
    defaultConfig {
        minSdkVersion var.minSdkVersion
        targetSdkVersion var.targetSdkVersion
        versionName var.versionName
    }


dependencies{
    implementation "com.android.support:design:$var.supportLibraryVersion"
    implementation "com.android.support:recyclerview-v7:$var.supportLibraryVersion"
    implementation "com.android.support:cardview-v7:$var.supportLibraryVersion"
}

注意:dependencies中使用$var.supportLibraryVersion,一定要记得把单引号 '         替换为双引号 "

行 34445: 08-05 16:56:39.165 12677 12677 W System.err: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.nfc.NfcAdapter.enableForegroundDispatch(android.app.Activity, android.app.PendingIntent, android.content.IntentFilter[], java.lang.String[][])' on a null object reference 行 34446: 08-05 16:56:39.165 12677 12677 W System.err: at com.octopus.f0.F0Detector.enableForegroundDispatch(Unknown Source:58) 行 34447: 08-05 16:56:39.165 12677 12677 W System.err: at com.octopus.f0.F0Detector.onResume(Unknown Source:0) 行 34448: 08-05 16:56:39.165 12677 12677 W System.err: at com.octopuscards.nfc_reader.ui.general.activities.NfcActivity.onResume(Unknown Source:78) 行 34449: 08-05 16:56:39.165 12677 12677 W System.err: at com.octopuscards.nfc_reader.ui.general.activities.LocaleActivity.onResume(Unknown Source:0) 行 34450: 08-05 16:56:39.165 12677 12677 W System.err: at com.octopuscards.nfc_reader.ui.general.activities.GeneralActivity.onResume(Unknown Source:0) 行 34451: 08-05 16:56:39.165 12677 12677 W System.err: at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1740) 行 34452: 08-05 16:56:39.165 12677 12677 W System.err: at android.app.Activity.performResume(Activity.java:9369) 行 34453: 08-05 16:56:39.165 12677 12677 W System.err: at android.app.ActivityThread.performResumeActivity(ActivityThread.java:5742) 行 34454: 08-05 16:56:39.165 12677 12677 W System.err: at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:5803) 行 34455: 08-05 16:56:39.165 12677 12677 W System.err: at android.app.servertransaction.ResumeActivityItem.execute(ResumeActivityItem.java:64) 行 34456: 08-05 16:56:39.165 12677 12677 W System.err: at android.app.servertransaction.ActivityTransactionItem.execute(ActivityTransactionItem.java:60) 行 34457: 08-05 16:56:39.165 12677 12677 W System.err: at android.app.servertransaction.TransactionExecutor.executeLifecycleItem(TransactionExecutor.java:230) 行 34458: 08-05 16:56:39.165 12677 12677 W System.err: at android.app.servertransaction.TransactionExecutor.executeTransactionItems(TransactionExecutor.java:112) 行 34459: 08-05 16:56:39.165 12677 12677 W System.err: at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:86) 行 34460: 08-05 16:56:39.165 12677 12677 W System.err: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2914) 行 34461: 08-05 16:56:39.165 12677 12677 W System.err: at android.os.Handler.dispatchMessage(Handler.java:112) 行 34462: 08-05 16:56:39.165 12677 12677 W System.err: at android.os.Looper.loopOnce(Looper.java:288) 行 34463: 08-05 16:56:39.165 12677 12677 W System.err: at android.os.Looper.loop(Looper.java:393) 行 34464: 08-05 16:56:39.165 12677 12677 W System.err: at android.app.ActivityThread.main(ActivityThread.java:9564) 行 34465: 08-05 16:56:39.165 12677 12677 W System.err: at java.lang.reflect.Method.invoke(Native Method) 行 34466: 08-05 16:56:39.165 12677 12677 W System.err: at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:600) 行 34467: 08-05 16:56:39.165 12677 12677 W System.err: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1010)
最新发布
08-06
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