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Unable to resolve dependency for ‘xxx项目@debug/compileClasspath‘: Could not resolve com.jakew

Could not resolve com.android.support:appcompat-v7:26.1.0. Required by: project :app No cached version of com.android.support:appcompat-v7:26.1.0 available for offline mode. No cached version of com.android.support:appcompat-v7:26.1.0 available for offline mode. Could not resolve com.android.support.constraint:constraint-layout:1.1.0-beta3. Required by: project :app No cached version of com.android.support.constraint:constraint-layout:1.1.0-beta3 available for offline mode. No cached version of com.android.support.constraint:constraint-layout:1.1.0-beta3 available for offline mode. Could not resolve com.android.support:design:26.1.0. Required by: project :app No cached version of com.android.support:design:26.1.0 available for offline mode. No cached version of com.android.support:design:26.1.0 available for offline mode. Could not resolve com.android.support:cardview-v7:26.1.0. Required by: project :app No cached version of com.android.support:cardview-v7:26.1.0 available for offline mode. No cached version of com.android.support:cardview-v7:26.1.0 available for offline mode. Could not resolve com.google.android.gms:play-services-ads:11.4.2. Required by: project :app No cached version of com.google.android.gms:play-services-ads:11.4.2 available for offline mode. No cached version of com.google.android.gms:play-services-ads:11.4.2 available for offline mode. Could not resolve com.android.support:support-v4:26.1.0. Required by: project :app No cached version of com.android.support:support-v4:26.1.0 available for offline mode. No cached version of com.android.support:support-v4:26.1.0 available for offline mode.

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官方披露全美自动驾驶事故报告,特斯拉占70%,马斯克:这恰恰说明Autopilot最安全

机器之心报道 编辑:蛋酱、小舟 自动驾驶发展到哪一步了?美国联邦政府首次披露了涉及自动驾驶汽车 (AV) 和配备先进驾驶辅助系统 (ADAS) 的汽车碰撞和死亡事故统计数据。 一直以来,汽车制造商和科技公司坚称自动驾驶相关技术可以挽救生命,但事实是去年死于自动驾驶车祸的人数比过去三十年都要多。目前,我们还需要更多数据来确定这些新系统是否让道路变得更安全,以及能否真正让驾驶变得更方便。 6 月 16 日,美国联邦政府发布了两份新报告,首次披露了涉及自动驾驶汽车 (AV) 和配备先进驾驶辅助系统 (ADAS)

03

Android’s PreferenceActivity for all API versions

I have spent the last few days learning about how to use the new Android PreferenceFragment which requires PreferenceActivity to override a new v11 (Honeycomb) method called onBuildHeaders(). Unfortunately, the documentation is not very clear how one would create a single PreferenceActivity that could play well in all versions, utilizing the newest features if you have it and avoiding an app crash on older Android versions. I encountered several solutions to this issue by creating two different activities for the two different mechanisms requiring two entries in your AndroidManifest.xml file. Having two different PreferenceActivities means if you have library code that extends that class, you now have to duplicate it. Then, if your app descends your library class, now has to be duplicated yet again. The end result is … less than ideal.

01
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