大约有 9,900 项符合查询结果(耗时:0.0094秒) [XML]

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Android LinearLayout Gradient Background

...ng="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="50dip" android:orientation="horizontal" android:background="@drawable/main_header_selector"> </LinearLayout> main_header_se...
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How to change ProgressBar's progress indicator color in Android

... I copied this from one of my apps, so there's prob a few extra attributes, but should give you the idea. This is from the layout that has the progress bar: <ProgressBar android:id="@+id/ProgressBar" style="?android:attr/progressBarStyleHoriz...
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【解决】Component "com.google.appinventor.components.runtime.Butt...

...报错信息如下: [LoadComponentInfo] INFO: Component "com.google.appinventor.components.runtime.ActivityStarter" does not specify permissionConstraints [LoadComponentInfo] INFO: Component "com.google.appinventor.components.runtime.Button" does not specify permissionConstrai...
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How to add a button to PreferenceScreen

... There is another solution for customizing the appearance of the preferences. Design a normal XML layout with buttons or whatever you want to add to the standard preferences. Include a ListView in your layout and give it the ID @android:id/list. Let's say we call the la...
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What should be in my .gitignore for an Android Studio project?

...e was right on the money for us... So, here's our gitignore file: #built application files *.apk *.ap_ # files for the dex VM *.dex # Java class files *.class # generated files bin/ gen/ # Local configuration file (sdk path, etc) local.properties # Windows thumbnail db Thumbs.db # OSX files ...
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【未发布】【第一课】撸猫游戏 - App Inventor 2 中文网 - 清泛IT社区,为创新赋能!

...出喵喵的叫声。 由于今天是第一课,因此需要普及一下App Inventor相关知识。 背景知识:AppInventor编程进阶: 平台介绍: 讲师介绍: 小朋友家长需要准备的物品:装有Chrome浏览器的电脑(实在没有电脑的平板电脑也可以...
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【动图】AppInventor2如何播放gif动图?如何播放动画? - App Inventor 2 ...

如题,目前AppInventor2用于显示图片的组件是“图像”组件,不过如果设置图片为gif的话,设计视图中图片预览会展示动图,但是通过AI伴侣测试或编译成apk真机测试,就会发现图片不会动,只会展示静态图片。那么问题来了,如...
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AppInventor2 vs Android Studio - App应用开发 - 清泛IT社区,为创新赋能!

有同学问: 如果用 AppInventor2 设计好了 回头出现问题用这个软件解决不了 是不是能用 Android Studio来重新编译呢? 不能,不同的源码体系。但是android studio工具可以调查部分app的通用问题,最终的apk他们是一致的,只是源码形...
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【解决】java.lang.ArrayIndexOutOfBoundsException: length=1; index=-1 a...

...nce(Looper.java:201) at android.os.Looper.loop(Looper.java:288) at android.app.ActivityThread.main(ActivityThread.java:8060) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:571) at com.android.internal.os.ZygoteInit.ma...
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搜索不到ble设备 - App应用开发 - 清泛IT社区,为创新赋能!

使用AI伴侣能搜索到ble设备,但是安装apk后搜索不到,这是怎么回事呢大概率是权限问题,在手机设置将 app 相关权限都打开试试,尤其是发现设备等权限。