android widget animation tutorial

Basic Android tutorial -- 8.2.2 OOM problems caused by BitmapBasic Android tutorial -- 8.2.2 OOM problems caused by Bitmap Tags (separated by spaces): basic Android tutorial This section introduces: In the previous section, we h

Simple tutorial for Android-gun 9 (BitmapFactory. Options scaling resource images ), We know that all the applications we write have certain memory limitations. If the program occupies too much memory, it is prone to OOM (OutOfMemory) exceptions. Therefore, when displaying a high-resolution image, it is best to compress the image first. The size of the compressed image should be similar to the size of the c

Basic tutorial for Android -- 2.4.13 basic usage of ViewFlipper This section introduces: This section introduces ViewFlipper, a multi-page management control that comes with Android and can be automatically played!Unlike ViewPager, ViewPager is a one-page object, while ViewFlipper is a layer-by-layer object. Unlike ViewPager,Used to enter the boot page after th

, in the plane Cartesian coordinate system, the X-value uniform change, The y-axis changes more and more slowly.3. Magnification (that is, multiplied by 1000) is to improve accuracy, as the result of a practice finding that the elapsed number of milliseconds divided by the entire animation cycle results in a total of 1.0 1.0, 0.0, 1.0, 0.0, 0.0, 0.0 Gt 1.0, 1.0, 2.0, 2.0, 2.0, although it is floating point number, but the precision is inexplicable in

Android Basics Getting Started tutorial--8.2.2 bitmap caused by oom problemtags (space delimited): Android Basics Getting Started TutorialIntroduction to this section: In the last section, we have learned the basic usage of bitmap, and this section we are going to explore the bitmap of the oom problem,In the actual development of people may have encounte

In the tutorial in this chapter, we will learn how to use layout objects, because we have mentioned a lot about the use of controls, and controls must also be used. So what is the layout? Android provides us with five la S. They are: FrameLayout (frame type), LinearLayout (linear type), AbsoluteLayout (absolute type), RelativeLayout (relative type), and TableLayout (Table type ). Let's take a closer look at

] = "light sensor";Typename[sensor.type_pressure] = "pressure sensor";Typename[sensor.type_relative_humidity] = "type_relative_humidity";Typename[sensor.type_ambient_temperature] = "Type_ambient_temperature";Typename[sensor.type_gyroscope] = "gyroscope";Typename[0] = "Unknown";Typename[sensor.type_accelerometer] = "acceleration";Typename[sensor.type_magnetic_field] = "magnetism";Typename[sensor.type_orientation] = "direction";Typename[sensor.type_temperature] = "Temperature";Typename[sensor.type

void OnClick (View v) {// Gets the edit box contents of String inputpass = Et_input.gettext (). toString (). Trim ();//Determines whether the input is empty, or null to implement the scrolling effect if (Textutils.isempty (inputpass ) {//is empty, scrolling animation shake = Animationutils.loadanimation (Mainactivity.this, r.anim.shake);//requires R.anim.shake resource file et_ Input.startanimation (shake); Tv_result.settext (""); return;} Determine

Basic Android tutorial -- 8.3.1 three graphic tools In the last two sections, we learned about Drawable and Bitmap. They all load images. In this section, we will learn about drawing-relatedSome APIs are Canvas, Paint, and Path )! This section is very important andBasics of custom View ~ Okay. Let's talk about the content in this section ~Official API documentation: Canvas; Paint; Path; 1. Detailed descr