睇到摩記早年出android手幾『Droid 3』,側滑鍵盤設計,绝版手機. 買蒞測試android程式.
『Droid 3』設debug模式
- 撳『Settings』-> 『Applications』 -> 『Development』
- 撳『USB debugging』
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安桌/android
睇到摩記早年出android手幾『Droid 3』,側滑鍵盤設計,绝版手機. 買蒞測試android程式.
『Droid 3』設debug模式
『Adobe』同『Google』合作,制作『日月韓漢』矢量字庫,目前支缓65535『日月韓漢』字.以字量蒞睇依然有大量異體字未收納.
1. 官網下載『源界明朝』字庫,
2. 解壓
3. 將『SuperOTC\SourceHanSerif.ttc』复制到『C:\Windows\Fonts』
https://github.com/adobe-fonts/source-han-serif/archive/1.001R.zip |
https://typekit.com/fonts/source-han-sans-traditional-chinese |
問老友借samsung平板程式調試, 首先著『開發人員模式』.
随著『Android studio』更新版本,『Gradle』需升級.
https://services.gradle.org/distributions/gradle-8.2.1-bin.zip |
C:\Users\admin\.gradle\wrapper\dists\gradle-8.2.1-bin\5hap6b9n41hkg4jeh2au2pllh\gradle-8.2.1-bin.zip |
Connection timed out: no further information. If you are behind an HTTP proxy, please configure the proxy settings either in IDE or Gradle. |
Android studio近日彈出gradle版本晤兼容.修改工程配置. 如果唔得重裝『Android Studio』.
Android Studio版本 | Android Gradle Plugin Version插件版本 |
Hedgehog | 2023.1.1 | 3.2~8.2 |
Giraffe | 2022.3.1 | 3.2~8.1 |
Flamingo | 2022.2.1 | 3.2~8.0 |
Electric Eel | 2022.1.1 | 3.2~7.4 |
Dolphin | 2021.3.1 | 3.2~7.3 |
Android Gradle Plugin Version插件版本 | Gradle Version |
8.1 | 8.0 |
8.0 | 8.0 |
7.4 | 7.5 |
7.4 | 7.4 |
7.2 | 7.3.3 |
7.1 | 7.2 |
7.0 | 7.0 |
4.2.0+ | 6.7.1 |
The project is using an incompatible version (AGP 8.1.0) of the Android Gradle plugin. Latest supported version is AGP 8.0.0 |
『ZLIB』開源『壓縮』同『解壓』程式庫, 支持『DEFLATE』冇損壓縮算法,佢混合『LZ77算法』同『霍夫曼編碼』.
『DEFLATE』壓縮算法冇專利權.畀人大量應用係『網络』『圖檔』『文檔』『影片』.
.PNG/ Libpng | 圖檔解壓 |
.ZIP | 壓縮檔 |
.tar | 壓縮檔 |
.gz | 壓縮檔 |
HTTP | 壓縮傅送 |
FFmpeg | 影片解壓 |
下载『ZLIB』
http://www.zlib.net/ |
http://www.zlib.net/zlib-1.2.13.tar.gz |
『Android studio』內置『ZLIB』, 唔使下載.但要係『CMakeLists.txt』增添『zlib』庫.
CMakeLists.txt文檔 | |
find_library( z-lib z ) | 搜索zlib |
target_link_libraries( ${z-lib} ) | 連接zlib |
包含『ZLIB』頭文檔
#include <zlib.h> | Zlib-api |
#include <zconf.h> |
『z_stream』壓縮同解壓皆需此結构體
z_stream stream; | zlib流結构體 |
stream.zalloc = Z_NULL; | NULL用默認記憶體分配函数 |
stream.zfree = Z_NULL; | NULL用默認記憶體释放函数 |
stream.opaque = Z_NULL; | |
stream.next_in = (Bytef*)sour; | 蒞源 |
stream.avail_in = (uInt)sour_length; | 蒞源長 |
stream.next_out = dest; | 輸出 |
stream.avail_out = (uInt)*dest_length; | 輸出長 |
『ZLIB』壓縮分叁步
壓縮 | |
deflateInit(&stream, level) | 分配記憶體,level壓縮等級 |
deflate(&stream, flush); | 壓縮數據, flush設0 |
deflateEnd(&stream); | 释放記憶體 |
int deflateInit2( | deflateInit()加强版 |
z_streamp strm, | zlib流結构體 |
int level, | level壓縮等級0~9.
0:速度快,唔壓縮. 9:速度慢,壓縮率高. |
int method, | 壓縮算法僅支緩Z_DEFLATED |
int windowBits, | 處理RAW DEFLATE手法. |
int memLevel, | 指定記憶體分配MAX_MEM_LEVEL |
int strategy)); | 壓縮策略,僅影響壓縮比.默認Z_DEFAULT_STRATEGY |
level | 壓縮等級 |
#define Z_NO_COMPRESSION 0 | 唔壓縮 |
#define Z_BEST_SPEED 1 | 高速,低壓縮率 |
#define Z_BEST_COMPRESSION 9 | 高壓縮率, 慢速 |
#define Z_DEFAULT_COMPRESSION (-1) | 默認壓縮 |
windowBits | 處理RAW DEFLATE手法. |
8~15: | 純deflate壓縮 |
-8~-15: | zlib頭 + deflate + zlib尾 |
> 16: | Gzip頭+ deflate + Gzip尾 |
method | 壓縮算法 |
#define Z_DEFLATED 8 | DEFLATE冇損壓縮 |
memLevel | 記憶體分配 |
MemLevel=1 | 最小記憶體,速度慢壓縮比低 |
MemLevel=9
#define MAX_MEM_LEVEL 9 |
最大記憶體,最佳速度 |
MemLevel=8 | 默認值 |
strategy | 壓縮算法設定 |
#define Z_FILTERED 1 | 僅FILTERED生成數據 |
#define Z_HUFFMAN_ONLY 2 | 僅霍夫曼編碼 |
#define Z_RLE 3 | 匹配長度=1 |
#define Z_FIXED 4 | 禁霍夫曼編碼 |
#define Z_DEFAULT_STRATEGY 0 | 默認壓縮設定 |
『ZLIB』解壓分叁步
解壓 | |
inflateInit(&stream) | 分配記憶體 |
inflate(&stream, Z_NO_FLUSH); | 解压數據 |
inflateEnd(stream); | 释放記憶體 |
返回碼 | |
#define Z_OK 0 | |
#define Z_STREAM_END 1 | 結束 |
#define Z_NEED_DICT 2 | 愛密碼 |
#define Z_ERRNO (-1) | |
#define Z_STREAM_ERROR (-2) | |
#define Z_DATA_ERROR (-3) | 加密數據損壞壞,或缺失. |
#define Z_MEM_ERROR (-4) | 唔够記憶體 |
#define Z_BUF_ERROR (-5) | 唔够緩存 |
#define Z_VERSION_ERROR (-6) |
解壓示例
int Uncompress(PBYTE dest,int * dest_length,PBYTE sour,int sour_length)
{
z_stream stream;
int ret;
stream.zalloc = (alloc_func)0;
stream.zfree = (free_func)0;
stream.opaque = (voidpf)0;
stream.next_in = (Bytef*)sour;
stream.avail_in = (uInt)sour_length;
stream.next_out = dest;
stream.avail_out = (uInt)*dest_length;
MAX_MEM_LEVEL
ret = inflateInit2(&stream, 16+MAX_WBITS);
if (ret != Z_OK)
return ret;
ret = inflate(&stream, Z_NO_FLUSH);// 解压
*dest_length = stream.total_out;
inflateEnd(&stream);
return ret;
}
壓缩示例
bool Compress(PBYTE dest,int * dest_length,PBYTE sour,int sour_length, int level)
{
int ret, flush;
int sour_offset,dest_offset;
int have;
z_stream stream;
BYTE in[ZIP_CHUNK];
BYTE out[ZIP_CHUNK];
stream.zalloc = Z_NULL;// 内存分配函数
stream.zfree = Z_NULL;// 内存释放函数
stream.opaque = Z_NULL;
stream.next_in = (Bytef*)sour;
stream.avail_in = (uInt)sour_length;
stream.next_out = dest;
stream.avail_out = (uInt)*dest_length;
ret = deflateInit(&stream, level);// 内存分配
if (ret != Z_OK)
return false;
ret = deflate(&stream, flush); // 进行压缩
*dest_length = stream.total_out;
deflateEnd(&stream);// 释放内存
return ret;
}
『Android studio』死機後,點唔開『.CPP/.C』文檔. 連落斷點都.發視『C/C++ Language Support』畀ANDROID禁用Disabled.
『Android studio』內置架餐『Image Asset』. 畀幅圖檔佢,『Image Asset』帮你自動生成各式圖檔.
揀『Launcher Icons(Legacy only)』冚辦闌圖檔背景透明.
『Android 8.0』及以上,程式圖檔强制背景色,揀『Launcher Icons(Adaptive and Legacy)』.
Android 8.0及以上 | 圖檔背景白色 | Launcher Icons(Adaptive and Legacy) |
Android 7.1及以下 | 圖檔背景透明 | Launcher Icons(Legacy only) |
Configure Image Asset | Android 8.0(API 26) 及以上 |
Icon type | Launcher Icons(Adaptive and Legacy) |
Name | ic_launcher |
Layer name | ic_launcher_foreground |
Asset type | Image |
path | 『.png』背景透明圖檔 |
Trim | 修剪勾yes |
Resize | 100% |
Asset type | 勾Color |
Color | 0xFFFFFF |
Configure Image Asset | Android 7.1以下 |
Icon type | Launcher Icons(Legacy only) |
Name | ic_launcher |
Asset type | 勾Image |
Path | 『.png』背景透明圖檔 |
Trim | 修剪勾yes |
Padding | 0% |
Background | 背景0xFFFFFF |
Scaling | Crop/ Shrink to fit自适应宽度 |
Shape | 揀None |
Effect | 勾None |
資料夾 | Size(px) |
mipmap-xxxhdpi | 192*192 |
mipmap-xxhdpi | 144*144 |
mipmap-xhdpi | 96*96 |
mipmap-hdpi | 72*72 |
mipmap-mdpi | 48*48 |
Android Studio係右下角彈出警示,『Cannot load settings from file』冇法載入『misc.xml』,事實係文檔損毁.內容大致如下.粘貼後諸存.
『misc.xml』文檔 |
<?xml version=”1.0″ encoding=”UTF-8″?>
<project version=”4″> <component name=”ProjectRootManager” version=”2″ languageLevel=”JDK_17″ default=”true” project-jdk-name=”Android Studio default JDK” project-jdk-type=”JavaSDK”> <output url=”file://$PROJECT_DIR$/build/classes” /> </component> <component name=”ProjectType”> <option name=”id” value=”Android” /> </component> </project> |
Load settings |
Cannot load settings from file |
“D:\ANDROID\GeomanticCompass\.idea\misc.xml”;illegal character(NULL,Unicode 0) encountered: not valid in any content at[row,col{unknown-source}]:[1,2] Please correct the file content |
『Android Studio』冇拉拉丟失鍵盤映射『Missing keymap』『Cannot find keymap “Windows Proper Redo” 』.
重新設鍵盤映射.
Missing keymap |
Cannot find keymap “Windows Proper Redo” |
Search for Windows Proper Redo Keymap plugin |
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