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▪包名跟签名 包名和签名
今天用到下面这一句，
context.getPackageManager().getPackageInfo(packname,PackageManager.GET_ACTIVITIES);
通过包名得到对应程序注册的activity信息，
但有些疑问，通过包名可以唯一的定位到应用吗.........
▪ Titanium 常见异常 Titanium 常见错误
[ERROR] Timed out waiting for emulator to be ready, you may need to close the emulator and try again -----关闭Titanium后再启动 [ERROR] Script Error = Result of expression 'Titanium.Database' [undefined] is not an object.........
▪ UIScrollView的性能有关问题 UIScrollView的性能问题
Coming Soon ......
......
[1]包名跟签名
来源: 互联网 发布时间: 2014-02-18
包名和签名
今天用到下面这一句，
context.getPackageManager().getPackageInfo(packname,PackageManager.GET_ACTIVITIES);
通过包名得到对应程序注册的activity信息，
但有些疑问，通过包名可以唯一的定位到应用吗？
答案是可以的。
原来android里包名是唯一的，安装程序时候，会先检查你的包名，如果有相同的，就会检查签名，签名相同，就可以知道这个是相同的程序，可以安装覆盖，如果包名相同，但签名不同，会提示安装不成功；所以安装的程序里，包名是唯一的，通过包名就可以定位到相应的程序了。上面的方法可用。
那开发android程序的人那么多，那怎能避免包名重复呢，比如公司为iteye，项目为test，那包名为com.iteye.test，这样一般不会重复了。
[2] Titanium 常见异常
来源: 互联网 发布时间: 2014-02-18
Titanium 常见错误
[ERROR] Timed out waiting for emulator to be ready, you may need to close the emulator and try again
-----关闭Titanium后再启动
[ERROR] Script Error = Result of expression 'Titanium.Database' [undefined] is not an object. at app.js (line 1).
-----Clean工程后再启动
[ERROR] Error generating R.java from manifest
-----修正Application Id，必须符合FQDN（Fully Qualified Domain Name, 含义是完整的域名），不能有非字符。（Test -> com.example.test）。
appid中不能包含appcelerator,titanium等官方相关的词语。
[ERROR] Exception occured while building Android project:
[ERROR] Traceback (most recent call last):
・・・・・・・・・・
[ERROR] UnicodeDecodeError: 'utf8' codec can't decode byte 0x82 in position 142: unexpected code type
-----把文件的编码改为"UTF-8"
[ERROR] Failed installing com.appcelerator.kitchensink: pkg: /data/local/tmp/app.apk
[TRACE] Failure [INSTALL_FAILED_MISSING_SHARED_LIBRARY]
-----更新SDK版本（建议2.2以上）,选择Google APIs
[ERROR] ....../strings.xml:3: error: Multiple substitutions specified in non-positional format; did you mean to add the formatted="false" attribute?
-----把String.xml中的“%d + %d = %d”改为“%1$d + %2$d = %3$d”
[ERROR] JDK version 'javac' is not recognized as an internal or external command
-----把%JAVA_HOME%\bin放入path环境变量中
[ERROR]Code Sign error: The identity ‘iPhone Developer: ‘ doesn’t match any valid certificate/private key pair in the default
-----provisioning profile做的有问题，iOS Provisioning Portal中作成profile时选择Development而不是Distribution
[ERROR] Analytics error sending request: The request timed out
[ERROR] Will re-queue analytics
-----删除build/iphone再试
[TRACE] E/TiHttpClient( 1151): java.net.UnknownHostException: Host is unresolved: xxxxxxx
-----启动emulator时加参数'-dns-server 8.8.8.8'
[DEBUG] D:\android-sdk-windows\tools\emulator.exe -avd titanium_5_HVGA -port 5560 -sdcard "C:\Documents and Settings\RenSanNing\.titanium\titanium_5_HVGA.sdcard" -logcat *:d,* -no-boot-anim -partition-size 128
invalid command-line parameter: C:\Documents.
Hint: use '@foo' to launch a virtual device named 'foo'.
please use -help for more information
[DEBUG] signal caught: 3
[DEBUG] calling emulator kill on 13360
ERROR: The process "13360" not found.
-----通过以下命令在外部启动模拟器后，再在Titanium Studio中启动一次即可。
emulator.exe -avd titanium_5_HVGA -port 5560
"Could not locate the Android SDK at a given path" in Preferences
-----下载Android 2.1 API 7 或 Google APIs Android API 7 打开「Window→Preferences→Aptana Studio→Titanium」设置Android SDK。
关于这个问题Titanium Compatibility Matrix中说的很清楚，如图：
Distribute Android marketplace为APK签名是出错
[ERROR] Unable to open 'F:\_workspace_titanium\_test_mobile2\_sign\_test_mobile2.apk' as zip archive
[ERROR] System Error while compiling Android classes.dex
-----确认密码，别名等信息是否跟keystore一致，具体步骤参考通过Titanium Studio为Android APK签名
[ERROR] JDK version 1.7.0_02 detected, but 1.6 is required
-----安装JDK1.6版本，具体可以查看源码C:\Documents and Settings\$user_name$\Application Data\Titanium\mobilesdk\win32\1.8.2\android\prereq.py
[ERROR] Timed out waiting for emulator to be ready, you may need to close the emulator and try again
-----关闭Titanium后再启动
[ERROR] Script Error = Result of expression 'Titanium.Database' [undefined] is not an object. at app.js (line 1).
-----Clean工程后再启动
[ERROR] Error generating R.java from manifest
-----修正Application Id，必须符合FQDN（Fully Qualified Domain Name, 含义是完整的域名），不能有非字符。（Test -> com.example.test）。
appid中不能包含appcelerator,titanium等官方相关的词语。
[ERROR] Exception occured while building Android project:
[ERROR] Traceback (most recent call last):
・・・・・・・・・・
[ERROR] UnicodeDecodeError: 'utf8' codec can't decode byte 0x82 in position 142: unexpected code type
-----把文件的编码改为"UTF-8"
[ERROR] Failed installing com.appcelerator.kitchensink: pkg: /data/local/tmp/app.apk
[TRACE] Failure [INSTALL_FAILED_MISSING_SHARED_LIBRARY]
-----更新SDK版本（建议2.2以上）,选择Google APIs
[ERROR] ....../strings.xml:3: error: Multiple substitutions specified in non-positional format; did you mean to add the formatted="false" attribute?
-----把String.xml中的“%d + %d = %d”改为“%1$d + %2$d = %3$d”
[ERROR] JDK version 'javac' is not recognized as an internal or external command
-----把%JAVA_HOME%\bin放入path环境变量中
[ERROR]Code Sign error: The identity ‘iPhone Developer: ‘ doesn’t match any valid certificate/private key pair in the default
-----provisioning profile做的有问题，iOS Provisioning Portal中作成profile时选择Development而不是Distribution
[ERROR] Analytics error sending request: The request timed out
[ERROR] Will re-queue analytics
-----删除build/iphone再试
[TRACE] E/TiHttpClient( 1151): java.net.UnknownHostException: Host is unresolved: xxxxxxx
-----启动emulator时加参数'-dns-server 8.8.8.8'
[DEBUG] D:\android-sdk-windows\tools\emulator.exe -avd titanium_5_HVGA -port 5560 -sdcard "C:\Documents and Settings\RenSanNing\.titanium\titanium_5_HVGA.sdcard" -logcat *:d,* -no-boot-anim -partition-size 128
invalid command-line parameter: C:\Documents.
Hint: use '@foo' to launch a virtual device named 'foo'.
please use -help for more information
[DEBUG] signal caught: 3
[DEBUG] calling emulator kill on 13360
ERROR: The process "13360" not found.
-----通过以下命令在外部启动模拟器后，再在Titanium Studio中启动一次即可。
emulator.exe -avd titanium_5_HVGA -port 5560
"Could not locate the Android SDK at a given path" in Preferences
-----下载Android 2.1 API 7 或 Google APIs Android API 7 打开「Window→Preferences→Aptana Studio→Titanium」设置Android SDK。
关于这个问题Titanium Compatibility Matrix中说的很清楚，如图：
Distribute Android marketplace为APK签名是出错
[ERROR] Unable to open 'F:\_workspace_titanium\_test_mobile2\_sign\_test_mobile2.apk' as zip archive
[ERROR] System Error while compiling Android classes.dex
-----确认密码，别名等信息是否跟keystore一致，具体步骤参考通过Titanium Studio为Android APK签名
[ERROR] JDK version 1.7.0_02 detected, but 1.6 is required
-----安装JDK1.6版本，具体可以查看源码C:\Documents and Settings\$user_name$\Application Data\Titanium\mobilesdk\win32\1.8.2\android\prereq.py
[3] UIScrollView的性能有关问题
来源: 互联网 发布时间: 2014-02-18
UIScrollView的性能问题
Coming Soon ......
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