探索Android Q 0.5:新特性和开发者须知

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《Android Q元素详解》(Elements of Android Q 0.5)是由Mark L. Murphy撰写的一份关于Android 10开发者预览版的详细指南。该书旨在帮助应用程序开发者了解Android Q对他们的应用可能带来的影响,因为每个新版本的Android系统都会对旧有应用的兼容性进行调整,可能会导致一些应用出现兼容性问题。在2019年秋季,Android Q正式发布前,开发者们可以通过这份文档提前了解和准备。 本书的核心内容包括: 1. **序言** - **书籍前提**:介绍阅读这本书所需的背景知识,确保读者具备开发Android应用的基本技能。 - **更新说明**:解释了本书版本0.5的新内容和相对于上一版的主要变化。 - **作者简介**:Mark L. Murphy的简介,以及他的著作特点。 - **书虫悬赏**:鼓励读者反馈错误或建议,以改进后续内容。 - **源代码与许可证**:强调开源精神,提供源代码及其使用的许可证信息。 - **Creative Commons与42F保证**:介绍 Creative Commons 许可协议以及作者对免费分享内容的承诺。 - **致谢**:感谢那些对本书有所贡献的人和组织。 2. **欢迎来到Android Q!** - **开发者预览和beta的历史**:回顾Android系统开发者预览版和测试版的发展历程,说明Android Q在这个传统中的位置。 - **使用Q Beta入门**:指导如何开始使用Android Q的开发者预览版,并提供安装和设置的步骤。 - **获取帮助**:提供获取官方支持和社区资源的途径。 3. **外部存储的终结** - **新特性介绍**:Android Q对设备外部存储的处理方式变化,可能影响到应用对SD卡等外部存储的访问。 - **滤网功能**:详细介绍新的数据过滤机制,可能对依赖外部存储的应用程序带来挑战。 4. **控制行为** - **用户权限管理**:Android Q增强了权限请求的透明度,开发者需要重新考虑应用对设备权限的使用策略。 - **行为规范**:探讨如何使应用在新规则下依然能够保持稳定运行。 5. **未来展望** - **预期的改动**:讨论Android Q对旧应用可能导致的具体行为变化,帮助开发者预测可能出现的问题和解决方案。 通过阅读《Elements of Android Q 0.5》,开发者不仅可以了解Android Q的新特性和设计思想,还能学习如何适应这些变化,确保他们的应用能在未来的Android生态系统中继续良好运作。在Android 10正式发布后,这些知识将显得尤为重要,因为它将直接影响到应用的用户体验和市场竞争力。

Could not resolve all files for configuration ':classpath'. > Could not resolve com.android.tools.build:gradle:7.4.1. Required by: project : > No matching variant of com.android.tools.build:gradle:7.4.1 was found. The consumer was configured to find a runtime of a library compatible with Java 8, packaged as a jar, and its dependencies declared externally, as well as attribute 'org.gradle.plugin.api-version' with value '7.5' but: - Variant 'apiElements' capability com.android.tools.build:gradle:7.4.1 declares a library, packaged as a jar, and its dependencies declared externally: - Incompatible because this component declares an API of a component compatible with Java 11 and the consumer needed a runtime of a component compatible with Java 8 - Other compatible attribute: - Doesn't say anything about org.gradle.plugin.api-version (required '7.5') - Variant 'javadocElements' capability com.android.tools.build:gradle:7.4.1 declares a runtime of a component, and its dependencies declared externally: - Incompatible because this component declares documentation and the consumer needed a library - Other compatible attributes: - Doesn't say anything about its target Java version (required compatibility with Java 8) - Doesn't say anything about its elements (required them packaged as a jar) - Doesn't say anything about org.gradle.plugin.api-version (required '7.5') - Variant 'runtimeElements' capability com.android.tools.build:gradle:7.4.1 declares a runtime of a library, packaged as a jar, and its dependencies declared externally: - Incompatible because this component declares a component compatible with Java 11 and the consumer needed a component compatible with Java 8 - Other compatible attribute: - Doesn't say anything about org.gradle.plugin.api-version (required '7.5') - Variant 'sourcesElements' capability com.android.tools.build:gradle:7.4.1 declares a runtime of a component, and its dependencies declared externally: - Incompatible because this component declares documentation and the consumer needed a library - Other compatible attributes: - Doesn't say anything about its target Java version (required compatibility with Java 8) - Doesn't say anything about its elements (required them packaged as a jar) - Doesn't say anything about org.gradle.plugin.api-version (required '7.5')这个问题是什么意思,要怎么解决 中文回答

2023-06-10 上传

怎样解决Android Studio的这个报错:ERROR: No matching variant of com.android.tools.build:gradle:7.4.1 was found. The consumer was configured to find a runtime of a library compatible with Java 8, packaged as a jar, and its dependencies declared externally, as well as attribute 'org.gradle.plugin.api-version' with value '7.5' but: - Variant 'apiElements' capability com.android.tools.build:gradle:7.4.1 declares a library, packaged as a jar, and its dependencies declared externally: - Incompatible because this component declares an API of a component compatible with Java 11 and the consumer needed a runtime of a component compatible with Java 8 - Other compatible attribute: - Doesn't say anything about org.gradle.plugin.api-version (required '7.5') - Variant 'javadocElements' capability com.android.tools.build:gradle:7.4.1 declares a runtime of a component, and its dependencies declared externally: - Incompatible because this component declares documentation and the consumer needed a library - Other compatible attributes: - Doesn't say anything about its target Java version (required compatibility with Java 8) - Doesn't say anything about its elements (required them packaged as a jar) - Doesn't say anything about org.gradle.plugin.api-version (required '7.5') - Variant 'runtimeElements' capability com.android.tools.build:gradle:7.4.1 declares a runtime of a library, packaged as a jar, and its dependencies declared externally: - Incompatible because this component declares a component compatible with Java 11 and the consumer needed a component compatible with Java 8 - Other compatible attribute: - Doesn't say anything about org.gradle.plugin.api-version (required '7.5') - Variant 'sourcesElements' capability com.android.tools.build:gradle:7.4.1 declares a runtime of a component, and its dependencies declared externally: - Incompatible because this component declares documentation and the consumer needed a library - Other compatible attributes: - Doesn't say anything about its target Java version (required compatibility with Java 8) - Doesn't say anything about its elements (required them packaged as a jar) - Doesn't say anything about org.gradle.plugin.api-version (required '7.5')

2023-05-25 上传

Android Studio这个错误怎么解决:ERROR: No matching variant of com.android.tools.build:gradle:7.4.1 was found. The consumer was configured to find a runtime of a library compatible with Java 8, packaged as a jar, and its dependencies declared externally, as well as attribute 'org.gradle.plugin.api-version' with value '7.5' but: - Variant 'apiElements' capability com.android.tools.build:gradle:7.4.1 declares a library, packaged as a jar, and its dependencies declared externally: - Incompatible because this component declares an API of a component compatible with Java 11 and the consumer needed a runtime of a component compatible with Java 8 - Other compatible attribute: - Doesn't say anything about org.gradle.plugin.api-version (required '7.5') - Variant 'javadocElements' capability com.android.tools.build:gradle:7.4.1 declares a runtime of a component, and its dependencies declared externally: - Incompatible because this component declares documentation and the consumer needed a library - Other compatible attributes: - Doesn't say anything about its target Java version (required compatibility with Java 8) - Doesn't say anything about its elements (required them packaged as a jar) - Doesn't say anything about org.gradle.plugin.api-version (required '7.5') - Variant 'runtimeElements' capability com.android.tools.build:gradle:7.4.1 declares a runtime of a library, packaged as a jar, and its dependencies declared externally: - Incompatible because this component declares a component compatible with Java 11 and the consumer needed a component compatible with Java 8 - Other compatible attribute: - Doesn't say anything about org.gradle.plugin.api-version (required '7.5') - Variant 'sourcesElements' capability com.android.tools.build:gradle:7.4.1 declares a runtime of a component, and its dependencies declared externally: - Incompatible because this component declares documentation and the consumer needed a library - Other compatible attributes: - Doesn't say anything about its target Java version (required compatibility with Java 8) - Doesn't say anything about its elements (required them packaged as a jar) - Doesn't say anything about org.gradle.plugin.api-version (required '7.5')

2023-05-25 上传