Learn how to get the unique identifier of an android device (21)
Because a stable and reliable unique device identification code is required for the project, some information on the internet is searched. We will introduce several methods today.1. DEVICE_ID
If we do need the identifier of a real device, DEVICE_ID may be used. In the past, our
Use of Android URI (Universal Resource Identifier)
Uri 1. Universal Resource Identifier ("URI "). Uri indicates the data to be operated. Each type of resource available on Android-images and video clips can be represented by Uri. A URI is generally composed of three parts: the naming mechanism for accessing resources.
When you run a project in a Menu.xml file, the Item property android:showasaction error No Resource identifier found for attribute ' showasaction ' on package ' a Ndroid 'Google, the Foreigner said is the version of the problem, Showasaction was added in the API level 11 to increase the API to 11, add "android-support-v7-appcompat.jar" To the Android library (Pri
The code in Androidmanifest.xml is as follows:This error occurs when you import a project:No Resource Identifier found for attribute ' parentactivityname ' on package ' Android 'It took a long time to know android:parentActivityName it was Android 4.1 (API level 16). So change the SDK to 16 or later. No Resource Identifier
Error: (108) No resource Identifier found for attribute ' style ' on package ' Android ' Solution:This is the wrong wording: android:style="android:attr/progressbarstylehorizontal" /> Get rid of Android: This namespace is on the line. The correct wording is as follows: Style="? android:attr/progressbarstylehorizontal" />Good, perfect solution. The reason for t
The content resource ID is the unified identifier of the data in the provided device. Content resource identifiers include the complete provider's name (its permissions) and the name (a path) pointing to the table or file ). The optional ID part points to an independent row in the table. Each data access method of the contentprovider class must have a content resource ID as a parameter, which allows you to decide the table, row, or file to be accessed
Error message:07-04 11:14:43.064:w/resourcetype (2411): No package identifier when getting value for resource number 0x0000001c07-04 11:14:43.064:w/system.err (2411): android.content.res.resources$notfoundexception:string resource ID #0x1cError Location Sample code:int percent = current * 100/total;Textview1.settext (percent);Cause Analysis:The main reason is that the SetText method of TextView the input int type percent as the resource ID to the proj
2,android SDK version may not be correct, so attribute ' showasaction ' is not supported in the lower version.In my case, this is the second situation: I modified the Android 2.3.3 to 4.0, and then the compilation is OK. Refer to the graphic below.650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M02/54/22/wKioL1R5R3PCIIiiAAL70Nkqb8E140.jpg "title=" Untitled. jpg "alt=" wkiol1r5r3pciiiiaal70nkqb8e140.
for inch from http://developer.android.comOriginally:LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"Xmlns:custom="http://schemas.android.com/apk/res/com.example.android.customviews"android:orientation="Vertical"Android:layout_width="match_parent"Android:layout_height="match_parent">Com.example.android.customviews.charting.PieChart Android:id="@+id/pie"Android:layout_width="match_parent"Android:layout_height="wrap_content"andro
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