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App Inventor 2 DynamicComponents 拓展：动态创建AI2组件对象 · App Inventor 2 中文网
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通过 JSON 字符串创建组件。请参阅Wiki，了解如何创建自己的模板。
从屏幕和组件列表中移除指定 ID 的组件。由于该组件...
Force an Android activity to always use landscape mode
... If your application targets API level 13 or higher (as declared by the minSdkVersion and targetSdkVersion attributes), then you should also declare the "screenSize" configuration, because it also changes when a device switches between portrait and landscape orientations.
– Cel...
How to programmatically clear application data
...y device, "pm" command don't have "clear" option. Its nothing related with sdk. It depends on device firmware.
– Palani
Aug 2 '12 at 18:18
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Getting Java version at runtime
...t follows proper version naming convention.
Sun Technical Articles
J2SE SDK/JRE Version String Naming Convention
Version 1.5.0 or 5.0?
"J2SE also keeps the version number 1.5.0 (or 1.5) in some places that are visible only to developers, or where the version number is parsed by programs"
"jav...
社会化海量数据采集爬虫框架搭建 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
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}
通过这个例子，我们看到通过httpclient获取数据，通过字符串操作扣取标题内容，然后通过system.out输出内容。大家是不是感觉做一个爬虫也还是蛮简单呢。这是一个基本的入门例子，我们再详细介绍怎么一步一步构建一个分...
Using Intent in an Android application to show another activity
...roid file you have to specify it in AndroidManifest.xml like
<uses-sdk android:minSdkVersion="8" />
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
<activity
android:name=".MyCreativityActivity"
android:label="@str...
iTunes音乐搜索 · App Inventor 2 中文网
...列表，这时候路径走不通，dictpath 就老老实实给你一个空字符串，
App 不会崩。我们正是靠试听地址是不是空的，来判断这次到底搜到没有。
开始测试
用 AI伴侣 连上手机，输入一个歌手名点搜索：
能看到专辑封面出来吗？...
HTTP status code 0 - Error Domain=NSURLErrorDomain?
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In iOS SDK When your API call time-outs, you get status 0 for that.
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How to handle ListView click in Android
...u are customizing the Adapter by extending BaseAdapter.
Refer the ANDROID_SDK/samples/ApiDemos/src/com/example/android/apis/view/List14.java for more details
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Android, getting resource ID from string?
...now .getResources().getDrawable is deprecated if(android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.LOLLIPOP){ return mContext.getDrawable(resourceId); } else { return mContext.getResources().getDrawable(resourceId); }
– Evilripper
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