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How to change shape color dynamically?

... I am getting java.lang.ClassCastException: android.graphics.drawable.GradientDrawable cannot be cast to android.graphics.drawable.ShapeDrawable when trying this suggestion. – prolink007 Aug 15 '13 at 18:37 ...
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How to set a Fragment tag by code?

...the post on stackoverflow [1]: stackoverflow.com/questions/9363072/android-set-fragment-id – SME Jul 26 '12 at 6:04 2 ...
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What does “Object reference not set to an instance of an object” mean? [duplicate]

...es are primitives such as integers and booleans or structures (and can be identified because they inherit from System.ValueType). Boolean variables, when declared, have a default value: bool mybool; //mybool == false Reference types, when declared, do not have a default value: class ExampleClas...
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How do I handle too long index names in a Ruby on Rails ActiveRecord migration?

... Provide the :name option to add_index, e.g.: add_index :studies, ["user_id", "university_id", "subject_name_id", "subject_type_id"], :unique => true, :name => 'my_index' If using the :index option on references in...
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How to create standard Borderless buttons (like in the design guideline mentioned)?

I was just checking the design guidelines and wondering about the borderless buttons. I goggled and tried to find in the source but can't bring it together by myself. Is this the normal Button widget but you add a custom (Android default) style? How to make these borderless buttons (of course you ca...
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Get to UIViewController from UIView?

...o implement it follows: @protocol MyViewDelegate < NSObject > - (void)viewActionHappened; @end @interface MyView : UIView @property (nonatomic, assign) MyViewDelegate delegate; @end @interface MyViewController < MyViewDelegate > @end The view interfaces with its delegate (as UI...
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Url.Action parameters?

...Action("Print1", "DeviceCertificates", new { Area = "Diagnostics"})\@Model.ID'>Print</a> Where is @Model.ID is a parameter And here there is a second example. <a class="nav-link" href='@Url.Action("Print1", "DeviceCertificates", new { Area = "Diagnostics"})\@Model.ID?param2=ViewBa...
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Android - Writing a custom (compound) component

The Android app I'm currently developing has a main activity that has grown quite large. This is mainly because it contains a TabWidget with 3 tabs. Each tab has quite a few components. The activity has to control of all those components at once. So I think you can imagine that this Activity has l...
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App Inventor 2 UrsPahoMqttClient 拓展 - 物联网轻量级MQTT协议 · App Inventor 2 中文网

...值为TCP、SSL和TLS,其他值将被忽略。 身份标识 ClientID - 客户端ID 可选:唯一客户端标识。如果未指定任何值,则内部会分配一个随机值 (GUID)。同时连接到同一消息服务器的所有客户端,客户端ID必须是唯一的。 认证信息...
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Adding parameter to ng-click function inside ng-repeat doesn't seem to work

... Instead of <button ng-click="removeTask({{task.id}})">remove</button> do this: <button ng-click="removeTask(task.id)">remove</button> Please see this fiddle: http://jsfiddle.net/JSWorld/Hp4W7/34/ ...