view webcam on android

Android custom GIF View display GIF Animation Gif animation is widely used in web development. Using gif, many animations do not need to be programmed. Currently, many apps have used gif animation, however, the android sdk does not provide the gif View for us, so we can only customize one

Android encapsulates a View module AndroidThe uidesign is visible, that is, the space available, which is very convenient when designing the UI. We should also try to reuse the UI to improve efficiency. If the entire page is the same, or only the list contentDifferent pages are displayed. We should use the same page instead of configuring multiple pages. But what should we do if only a part of the page has

Introduction to view architecture:In Android, controls exist primarily in the form of viewgroup and view. The ViewGroup control can contain more than one view control, which is responsible for the measurement and drawing of all child controls inside it, and for passing interactive events. ，In mobile development for

Continue to write out some of the things that were previously outsourced by Android. Article structure: (1) Ratingbar basic use (custom style), (2) Butterknife can not annotate ratingbar and the way in which the project is resolved, (3) Butterknife principle and view mechanism principle one, Ratingbar Basic use (custom style): (1) a style style: name="roomRatingBar" parent="@android:style/Widget.RatingBa

Android custom View Graph and androidview Graph Recently, a simple graph was created in the project to identify the data. At first, I thought it was very simple. android already has so many open-source chart libraries, such as achartenginee, hellochart, and mpandroidchart. Download the Demo and find it, it's so powerful that it's not suitable for my little presen

OverviewAndroid event delivery mechanism is also an important piece of the Android system, there are many types of events, here mainly discusses the TouchEvent event in the framework layer of the transfer processing mechanism. Because for app developers, understanding the event passing mechanism of the framework layer is almost there.Think about the entire event distribution process with questions.1, why should there be an event distribution process?W

Android 5.0 Material Design is implemented by clicking any View, androidmaterialFor more information, see [Mr. Simple blog ]. I am participating in the blog star. Click here to vote for me. Thank you ~Preface Since the advent of Android 5.0, its UI style has been widely praised, simple and dynamic. However, due to busy work, I have not paid much attention to

Before analyzing the android message mechanism, let's take a look at the Code: Public class mainactivity extends activity implements view. onclicklistener {private textview statetext; private button BTN; @ override public void oncreate (bundle savedinstancestate) {super. oncreate (savedinstancestate); setcontentview (R. layout. main); statetext = (textview) findviewbyid (R. id. TV); BTN = (button) findviewb

Android learning notes: view the usage of GridView, androidgridview (1) The layout creation code is as follows: (2) Use the layout in the MainActivity class Package com. example. layoutstudy; import android. OS. bundle; import android. app. activity; import android.

OverviewIn the previous article on the event distribution mechanism (above) in Android,--viewgroup's event distribution was analyzed in detail for ViewGroup event distribution. In the last viewgroup of the article, the Dispatchtouchevent method calls the Dispatchtransformedtouchevent method to successfully pass the event to the child view of ViewGroup. and is processed by the child

Android microphone custom View with dynamic display of Audio Tape Volume 1. The so-called no picture, no truth, first. What we need to achieve is the button of the middle recording, and the surrounding area will display a waveform of the volume size. 2. VolumCircleBar inherits from View and we have customized it. The Code is as follows: VcD4KPHByZSBjbGFzcz

Create a Material Design-style Android app-define the shadow and cropping view, materialandroid I have previously written about using the topic and ListView, CardView, and Material Design Styles. Both of them can be backward compatible through the support library. The shadow and view cropping to be written today are not backward compatible. Please note. Material

Android custom view tutorialAndroid UI elements are based on views (a single element on the screen) and ViewGroup (a set of elements). Android has many built-in components and la s, such as buttons, TextView, and RelativeLayout. During app development, we need custom view components to meet our needs. Override the

Android Study Notes (27): Calendar view Calendar Analysis The calendar view CalendarView can be used to display and select a date. You can call setOnDateChangedListener () to bind the event listener. Common XML attributes and related methods: XML attributes Related Methods Description Android: d

Today, I learned how to refresh the android VIEW. Previously, I thought that I would call the refresh function when calling the refresh of the VIEW. Today I learned about the refresh mechanism of the view, but I learned a lot. I think that I want to read more android source

MainActivity. java[Java]Package com. soai. view;Import android. OS. Bundle;Import android. app. Activity;Import android. view. Window;Import android. view. WindowManager;Public class Ma

Introduction　　Today we introduce the positioning of the Android coordinate system and the view, and of course the sliding related topics of the view. Let's start with the introduction.The basics of viewView is the base class for all controls in Android, both TextView, Button, Relativelayout, and ListView, which are com

Android -- View, ViewGroup event (Touch event) processing mechanism Summary, androidviewgroupEvents in Android Touch event, four statuses: ACTION_DOWN --> indicates that an event starts from ACTION_DOWN when the screen is pressed.ACTION_MOVE --> indicates a mobile gesture.ACTION_UP --> indicates leaving the screenACTION_CANCEL --> indicates canceling a gesture,

Scroroller for Android (5)-detailed explanation of scroroller call process and View re-painting, androidscrorollerMainActivity is as follows: package cc.ww;import android.os.Bundle;import android.widget.ImageView;import android.widget.ImageView.ScaleType;import android.widget.RelativeLayout;import android.widget.RelativeLayout.LayoutParams;import android.app.Activity;import android.content.Context;public cl

Original address: http://blog.csdn.net/xu_fu/article/details/7829721The design of the view structure of the Android system also adopts the combination mode, that is, the view as the base class of all the graphs, viewgroup the view inheritance into the views container class, thus obtains the basic structure of the