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I lost my .keystore file?
...generate your app signing key. Once enrolled in app signing, you sign your APK with an upload key, which Google uses to authenticate your identity. They'll then strip that signature and re-sign your app with the app signing key.
Reference: Play Console Help > Manage your app signing keys
...
Comments in Android Layout xml
...
For example:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
tools:context=".TicTacToe" >
<!...
How to set button click effect in Android?
...he following code:
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_focused="true" android:state_pressed="false" android:drawable="@drawable/YOURIMAGE" />
<item android:state_focused="true" android:state_pressed="true" android:drawable...
通信连接组件 · App Inventor 2 中文网
... AI 助手 · 一句话生成 App 鸿蒙 · 一套积木，多端原生打包！ 下载 AI2伴侣 · 安卓/鸿蒙/iOS aia 源码商店 中文社区 中文教育版 各版本对比 关于 关于我们 发布日志 服务条款 ...
一分钟读懂低功耗蓝牙(BLE) MTU交换数据包 - 创客硬件开发 - 清泛IT社区，...
...sp; 在BLE中，GAP,GATT,SMP 都使用L2CAP 通道将命令及数据打包送到链路层（LINK LAYER)，L2CAP 打包过程中需要指定L2CAP的长度及通道号。
Length: 3
4) L2CAP 通道号（CID)：channel ID
CID: Attribut...
Android: textColor of disabled button in selector not showing?
...coding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<!-- disabled state -->
<item android:state_enabled="false" android:color="#9D9FA2" />
<item android:color="#000"/>
</selector>
In your style.xml, put a reference to that t...
NSIS学习笔记（持续更新） - C/C++ - 清泛网 - 专注C/C++及内核技术
...e" $0
${EndIf}
Q 如何调用静默卸载？
#自动卸载上一个打包版本.begin
ReadRegStr $0 HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\${COMPANYNAME} ${APPNAME}" "MainProgramLocationPath"
${If} $0 != ""
Strcpy $1 $0\uninstall.exe
#下面的Call MyMe...
【BLE技术内幕】BLE技术揭秘 - 创客硬件开发 - 清泛IT论坛，有思想、有深度
...性（数据）。
GATT特别关注如何根据其描述的规则格式化打包和发送数据。在BLE网络堆栈中，属性协议（ATT）与GATT紧密对齐，GATT直接位于ATT的顶部。GATT实际上使用ATT来描述如何从两个连接的设备交换数据。5.2.1 建立联系（Connec...
How to provide different Android app icons for different gradle buildTypes?
...hough it has an important downside... both launchers will be put into your apk. – Bartek Lipinski
The better way: InsanityOnABun's answer
AndroidManifest.xml
<manifest
...
<application
android:allowBackup="true"
android:icon="${appIcon}"
android:roundI...
How do I solve the INSTALL_FAILED_DEXOPT error?
I am developing an Android application using Android 2.2, my application APK size is 22.5 MB, and I would like to create a new build for a Samsung tablet. I got the following error:
...