←组件速查 教程首页 用户界面 微调器 创建可选列表，并根据用户选中的内容执行操作。 微调器列表用户界面 需要的组件：微调器（用户...

←组件速查 教程首页 数据存储 存储及读取文件 把内容写入手机文件，并读取和显示保存的文本。 文件管理器文件数据存储 把内容写进手...

←组件速查 教程首页 多媒体 文字转语音 让应用把指定文字朗读出来。 文本朗读器语音多媒体 需要的组件：文本朗读器（多媒体）、按钮...

←组件速查 教程首页 多媒体 让手机震动 使用音效组件设置手机震动时长。 音效震动手机 要让手机震动，得用“音效”组件，先把它拖到...

←组件速查 教程首页 多媒体 视频播放器 上传视频，并在播放结束后自动重新播放。 视频播放器视频多媒体 需要的组件：视频播放器（多...

默认麦克风是关闭的，设置中启用即可：

...ou toggle what the project builds to. If you're importing a project it actually defaults to Emulator, not sure why. You can also select "Open Select Deployment Target Dialog" to list both connected as well as emulated devices. ...

... work. The current instruction to be executed is stored in something typically called the instruction pointer (IP) or program counter (PC); these terms are synonymous, but different terms are used with different architectures. For most instructions, the PC of the next instruction is just the curre...

... not obliged to do AFAIK) they still provide a way to reload that page (usually after showing a warning dialog). So if you really don't want your users going back to that page, this may be worse, since the request for that page will HAVE to make its way all the way to the origin server. You will n...

...thon designers decide that subclasses' __init__() methods don't automatically call the __init__() methods of their superclasses, as in some other languages? Is the Pythonic and recommended idiom really like the following? ...