Original: Android 0 Basics section 62nd: Search box Component SearchviewI. Overview of SearchviewSearchview is a search box component that allows the user to enter text within a text box and allows the listener to monitor user input, and to perform an actual search through the listener when the user enters the search by submitting it.Searchview default is to show a search icon, click on the icon to expand t
,
Numberpicker.onvaluechangelistener: Used to listen for changes to the current value.
Numberpicker.onscrolllistener: The scroll state used to listen for the control. The following three states are mainly included:
Scroll_state_touch_scroll: The user presses down and then slides.
Scroll_state_fling: Equivalent to the subsequent slide operation of the Scroll_state_touch_scroll.
Scroll_state_idle:numberpicker is not scrolling.
Numberpicker.formatter: Used
.
Numberpicker.onscrolllistener: The scroll state used to listen for the control. The following three states are mainly included:
Scroll_state_touch_scroll: The user presses down and then slides.
Scroll_state_fling: Equivalent to the subsequent slide operation of the Scroll_state_touch_scroll.
Scroll_state_idle:numberpicker is not scrolling.
Numberpicker.formatter: Used to format the display of value in the component, such as
for the child view beforehand, the child view is set with the default parameters of the current viewgroup.
AddView (view child, int index): Adds a sub-view. If the layout parameter is not set for the child view beforehand, the child view is set with the default parameters of the current viewgroup.
Arrowscroll (int direction): Handles scrolling the scroll bar when the up and down arrows are clicked.
Fling (int velocityy): Slide (Fling) gesture of the scrolling view.
Ii. Examples
the animation used when the component is hidden.
Adapterviewfilpper additional supported XML attributes and related methods are shown in the following table.Ii. Examples of AdapterviewfilpperNext, learn how to use adapterviewfilpper using a simple example program.Continue to use the Listviewsample module of the Widgetsample project to create a adapterview_filpper_layout.xml file in the app/main/res/layout/directory populated with the following code snippet:XML version= "1.0" encoding= "Utf
the XML attributes and related methods commonly used by Gridlayout.layoutparams.Ii. examplesNext, learn the usage of GridLayout using a simple example program.Also using the Widgetsample project, continue to use the Activity_main.xml file in the app/main/res/layout/directory, where the following code snippet is populated:XML version= "1.0" encoding= "Utf-8"?>GridLayoutxmlns:android= "Http://schemas.android.com/ap
multiple prompt entries are delimited by delimiters. Multiautocompletetextview provides the Settokenizer () method to set the delimiter.Ii. Examples of AutocompletetextviewNext, learn how to use Autocompletetextview and Multiautocompletetextview using a simple example program.Continue to use the Listviewsample module of the Widgetsample project to create a autocomplete_textview_layout.xml file in the app/main/res/layout/directory populated with the following code snippet:XML version= "1.0" enco
simple example program.Also using the Widgetsample project, continue to use the Activity_main.xml file in the app/main/res/layout/directory, where the following code snippet is populated:XML version= "1.0" encoding= "Utf-8"?>Framelayoutxmlns:android= "Http://schemas.android.com/apk/res/android"Android:layout_width= "Match_parent"Android:layout_height= "Match_par
" encoding= "Utf-8"?>LinearLayoutxmlns:android= "Http://schemas.android.com/apk/res/android"Android:layout_width= "Match_parent"Android:layout_height= "Match_parent"android:orientation= "vertical"> defines the first table layout, specifies that the 2nd column is allowed to shrink, and the 3rd column allows stretching - TablelayoutAndroid:layout_width= "Matc
-coordinate of the subassembly.
Ii. examplesNext, learn the usage of absolutelayout using a simple example program.Also using the Widgetsample project, continue to use the Activity_main.xml file in the app/main/res/layout/directory, where the following code snippet is populated:XML version= "1.0" encoding= "Utf-8"?>Absolutelayoutxmlns:android= "Http://schemas.android.com/apk/res/
.
Android:layout_alignstart: The start side of this component is aligned with the beginning of a component.
Android:layout_alignend: The end of this component is aligned with the end of a component.
In addition, Relativelayout.layoutparams also inherited the Android view. Viewgroup.marginlayoutparams, so each sub-component in the Relativelayout layout container can also be specified Each XML attribute supported by the Android.view.ViewGro
conjunction with adapter, it will be learned in the next chapter.
Extractedittext: Not the UI component, but the underlying service class of the EditText component, which is responsible for providing full-screen input method support.
Ii. Examples of EditTextNext, a simple example program is used to learn the common uses of edittext.Continue to use the Widgetsample project created in the previous period to create a Edittext_layout.xml file under the app/main/res/layout/directory.Select
(ClassLoader loader, list After the successful sub-package, unzip the apk file into the Assert folder, we see the following structure, LIBS.APK is the third party jar compiled after the Dex fileAs for the method used in some of the methods, can be found in the Android-support-multidex.jar, here is not all posted out, if there is no clear, welcome message to discuss ...======================================
Hello everyone, this is a simple Android demo, just a simple prototype. The interface design is also a little ugly ~ Take a look at the following:
Step 1: Train of Thought Analysis
Three Controls, edittext, button, and webview, are used from the interface. There are actually four toast controls that are used to prompt when the query content is empty.
We enter the query content in edittext, which includes Chinese and English. Then, obtain the data
0. [WP Developer experience Andriod Development] install and configure Android Studio from scratch and write the first Android App, andriodandroid0. required installation files
I have been working on WP for a few years. Recently I am a little interested in Android. I will try Andr
can not fully understand first know on the line, wait for a certain experience after later to study.Come here today, if you have any questions welcome message to discuss together, also welcome to join the Android 0 Basic introductory Technical discussion group, grow together!If the series of sharing is helpful to you, move your fingers, like, leave a message, your interaction is the greatest encouragement
Mingxin _android project directory structure analysis and resource referenceThe use of Logcat in the DDMS of 05_ Academy _ Gao Mingxin _androidThe use of the DDMS of 06_ Academy _ Gao Mingxin _android07_ School _ Gao Mingxin _android Project Package apk and apk anti-compilation . zip08_ School _ Gao Mingxin _android of the common event response method comparison . zip09_ Academy _ Gao Mingxin _android Comm
successful import of opencv2.4.6, test sample, there are several can run on the virtual machine, normal, there are several build success but run no response, no matter. Then follow the previous reference to the Great God's blog to try to build their own new Android project, unexpectedly, the success of the build, the simulator did not respond, Baidu apk export method, export, transfer mobile phone, install
Scene:1. As a bridge between PC-side and mobile-phone communication, ADB plays an important role in debugging mobile app and viewing mobile phone information.2. Some of the more useful commands are listed here to facilitate quick check.To view a list of devices on which USB debugging is turned on: ADB devices install APK: adb-s xxxxx (device serial number, using ADB devices, assuming that only one device is connected, do not need to join the-s para
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