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App Inventor 2 PhoneInfo 拓展：获取手机等设备软硬件、版本等相关信息 ·...
...下载：
PhoneInfo.aia
使用方法
GetDeviceID
获取设备ID。Android 10+不支持！
GetPhoneNumber
获取本机手机号码。无SIM卡设备将返回空文本；双SIM卡设备将返回主卡号码。Android 10+不支持！
注：这个方法采用的是较常规的方式获取信...
TaifunFlashlight 手电筒/闪光灯拓展 - App Inventor 2 拓展 - 清泛IT社区，为创新赋能！
一个用于打开/关闭手电筒的扩展插件，所需要的权限：
android.permission.CAMERA（注：拍摄照片和视频）
android.permission.FLASHLIGHT（注：控制手电筒）
要至少11级的API（即Android 3.0.0以上）
属性
返回设备是否有闪光灯
过程
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蓝牙接收的数据怎么一行一行更新显示和，类似图2这样的 - App应用开发 - 清...
...还在写 为什么现在app出现运行故障 弹出来：Need android.permission.BLUETOOTH_SCAN permission for android.content.AttributionSource@d5ca151a: GattService registerScanner
注意： 5秒钟后将报告另一条错误信息。liangzhi123 发表于 2024-12-06 16:04
这个还...
MIT于2026元旦已发布v2.77版本：更新非常有限，lamda 表达式（匿名函数）缺...
...试上线。
------MIT------
这是一个组件版本更新，新的 Android Companion 2.77 版本：
非组件版本更新内容：
添加 @UsesFeatures 注解以更新 Android 清单文件 (@JEWEL)
添加一个标志以强制显示启动画面（仅用于测试部署）
添加对教师...
- App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
...统调用是 PowerManager.userActivity(...) —— 它需要
android.permission.DEVICE_POWER(signature|system
级),普通应用申请不到,调用直接抛 SecurityException。
- 注入系统输入事件(让系统以为"用户在点屏")需要
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A quick and easy way to join array elements with a separator (the opposite of split) in Java [duplic
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Unfortunatelly Android Studio does not fully support 1.8 only 1.7: stackoverflow.com/q/31528782/239219
– János
Sep 17 '16 at 6:48
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How do I get the file extension of a file in Java?
...t having directories with dots, since it's not illegal 2. I was coding for Android so I used some SDK method I don't remember but I guess stackoverflow.com/a/3571239/2546146 doesn't have this flaw
– Iman Akbari
Aug 4 '15 at 23:21
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TimePicker Dialog from clicking EditText
...or is 'Cannot resolve constructor 'TimePickerDialog(com.appname.classname, android.app.TimePickerDialog.OnTimeSetListener, int, int)' '
– Mark O'Sullivan
Jul 27 '13 at 20:18
2
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What unique features does Firebug have that are not built-in to Firefox?
... Tools
Mozilla today launched Firefox 48 for Windows, Mac, Linux, and Android. The browser has gained multi-processor support (finally), enhanced protection against harmful downloads, and media improvements on Android. Support for old OS X versions and Android Gingerbread has been dropped.
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Check whether a string is not null and not empty
... is string empty or null. Nice and short. The TextUtils class is a part of Android SDK.
– George Maisuradze
Nov 19 '14 at 21:26
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