[Android Notes] imitation happy Security homepage dynamic effect, anzhuo happy Security

Source: Internet
Author: User

[Android Notes] imitation happy Security homepage dynamic effect, anzhuo happy Security

First look at the effect:


<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:gravity="center"    tools:context=".MainActivity" >    <FrameLayout        android:layout_width="match_parent"        android:layout_height="match_parent" >        <ImageView            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_gravity="center"            android:src="@drawable/homepage_disk_button_orange_normal" />        <ImageView            android:id="@+id/iv_rotate"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_gravity="center"            android:src="@drawable/homepage_disk_orange_normal" />        <com.example.view.RadiationView            android:id="@+id/rv"            android:layout_width="250dp"            android:layout_height="250dp"            android:layout_gravity="center" />        <TextView            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_gravity="center"            android:text="SB"            android:textColor="#ffffff"            android:textSize="30sp" />    </FrameLayout></LinearLayout>

Rotation Animation:

<?xml version="1.0" encoding="utf-8"?><rotate xmlns:android="http://schemas.android.com/apk/res/android"    android:duration="12000"    android:fromDegrees="0"    android:pivotX="50%"    android:pivotY="50%"    android:startOffset="0"    android:interpolator="@android:anim/linear_interpolator"    android:repeatCount="infinite"    android:repeatMode="restart"    android:toDegrees="360" />

View with radiation effect:

Package com. example. view; import android. content. context; import android. graphics. canvas; import android. graphics. color; import android. graphics. paint; import android. OS. handler; import android. util. attributeSet; import android. util. log; import android. view. view;/*** @ author Rowandjj ** view with radiation effect */public class RadiationView extends View {/*** Paint brush */private Paint mPaint = new Paint (); /*** color */private int MColor = 0x3f990e;/*** transparency */private int mAlpha = 60; private Handler mHandler = null; private static final int MESSAGE_DRAW = 0; private static final String TAG = "RadiationView"; private int width; private int height;/*** Diffusion speed */private int speed = 30; /*** maximum radiation radius */private int maxRadius = 100; private int centerX; private int centerY;/*** minimum radius */private int minRadius = 70; /*** current RADIUS */private int ra Dius = minRadius; private boolean isStarted = false; public RadiationView (Context context) {super (context); init () ;}public RadiationView (Context context Context, AttributeSet attrs) {super (context, attrs, 0); init ();} public void startRadiate () {isStarted = true; mHandler. sendEmptyMessage (MESSAGE_DRAW);} private void init () {mPaint = new Paint (); mPaint. setStrokeWidth (1); // you must set color before setting alphamPaint. setColor (mColor); m Paint. setAlpha (mAlpha); mHandler = new Handler () {public void handleMessage (android. OS. message msg) {if (msg. what = MESSAGE_DRAW) {invalidate (); if (isStarted) {sendEmptyMessageDelayed (MESSAGE_DRAW, speed) ;}};}@ Overrideprotected void onLayout (boolean changed, int left, int top, int right, int bottom) {super. onLayout (changed, left, top, right, bottom); width = this. getWidth (); height = this. getHeight (); if (w Idth <= 0 | height <= 0) {throw new RuntimeException ("size illegal");} // center centerX = width/2; centerY = height/2; // maxRadius = (width> height )? Height/2: width/2; Log. I (TAG, "MAX" + maxRadius); if (maxRadius <70) {throw new RuntimeException ("size too small") ;}}@ Overrideprotected void onDraw (Canvas canvas Canvas) {mPaint. setColor (mColor); mPaint. setAlpha (mAlpha); if (radius <= 0) {return;} if (radius> maxRadius) {radius = minRadius;} canvas. save (); canvas. drawCircle (centerX, centerY, radius, mPaint); canvas. restore (); radius + = 1 ;}@ Overrideprotected void onAttachedToWindow () {super. onAttachedToWindow (); this. setLayerType (View. LAYER_TYPE_SOFTWARE, null);} public void setColor (int color) {this. mColor = color;} public void setSpeed (int speed) {this. speed = speed;} public void setMinRadius (int radius) {this. minRadius = radius ;}}

Call code:

Package com. example. animdemo1; import android. app. activity; import android. OS. bundle; import android. view. animation. animation; import android. view. animation. animationUtils; import android. widget. imageView; import com. example. view. radiationView; public class MainActivity extends Activity {private ImageView iv = null; private RadiationView rv = null; @ Overrideprotected void onCreate (Bundle savedInstanceState) {super. onCreate (savedInstanceState); setContentView (R. layout. activity_main); iv = (ImageView) findViewById (R. id. iv_rotate); rv = (RadiationView) findViewById (R. id. rv); rv. setMinRadius (70); // radiation radius rv. startRadiate (); // start to radiate Animation anim = AnimationUtils. loadAnimation (this, R. anim. rotate_circle_anim); iv. startAnimation (anim); // start animation }}

Is the Android Market Software Secure and easy to use?

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