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MotionEffectMotionEffect is a new MotionHelper in 2.1, which allows you to automatically add keys to the view it refers to according to the overall motion direction of the view. It can simplify the creation of many transition animations.To better understand its role, take a look at the following example. This example only uses the start and end ...

1. Remote control story: Generic Girlfriend: I really want a universal remote control. Me: why don't I teach you to implement one with Kotlin's generics! Girlfriend: cut, you want to fool me to learn Kotlin. [white eyes] Me: it's really simple. I'm sure you'll see it at a glance. 1-1 generic class Me: This is a universal remote ...

stop() stops playback prepare() resource preparation prepareAsync() prepares asynchronously and does not block UI threads seekTo(int msec) locates the specified location in milliseconds Is isLooping looping Isplayingplayback status Duration total duration currentPosition current position release() resource release Component Tree === ...

} // Download address of reinforcement protection def downloadUrl = isWindows() ? packers["jiagubao_windows"] : packers["jiagubao_mac"] // mac comes with curl command. windows needs to download curl installation def cmd = "curl -o ${packers["zipPath"]} ${downloadUrl}" println cmd cmd.execute().waitForProcessOutput(S ...

stay styles The following two properties are configured in: ``` <item name="android:windowBackground">@android:color/transparent</item> <item name="android:windowIsTranslucent">true</item> ``` Then monitor the sideslip event and move the top layer Activity of ContentView，You can reall ...

1, Introduction Main uses of Bitmap: Set background for ImageView Use as canvas imageView.setImageBitmap(Bitmap bm); // Set background for ImageView Canvas canvas = new Canvas(Bitmap bm); // Use as canvas 2, Bitmap compression Load Bitmap Bitmap in Android refers to a picture, which can be png format or jpg and other common picture format ...

public View(Context context, @Nullable AttributeSet attrs, int defStyleAttr, int defStyleRes) { } ``` View constructor in source code Through the comments of the source code, we can see that: If the view is new in Java code, call the first constructor – > View (context); If the view is declared in xml, the second constructo ...

The complete code is as follows: public class ExternalActivity extends AppCompatActivity { private EditText infoEdt; private TextView txt; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_external); infoEdt = ...

The custom View includes three parts: LayoutDrawingTouch feedback (Event Handling) Layout stage: determine the position and size of the View. Drawing stage: draw the contents of the View. Touch feedback: determine where the user clicked. The layout stage includes two processes: Measurement and layout. In addition, the layout stage supports t ...

prefaceThis article is a detailed analysis of the OkHttp open source library. If you feel you don't know enough about OkHttp, you want to learn more. I believe this article will be helpful to you.This article contains a detailed analysis of the request process, the interpretation of major interceptors and a summary of my reflection. The article ...