Android and android

Android and android

This article mainly implements a small game project for opening beautiful clothes

The effect is as follows:

Project Layout Design:

<FrameLayout 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"    tools:context=".MainActivity" >    <ImageView        android:id="@+id/iv_after"        android:layout_width="wrap_content"        android:layout_height="wrap_content" />    <ImageView        android:id="@+id/iv_pre"        android:layout_width="wrap_content"        android:layout_height="wrap_content" /></FrameLayout>

Logic code:

Public class MainActivity extends Activity {private ImageView iv_after; private ImageView iv_before; private Bitmap alterBitmap; private Canvas canvas; private Paint paint; @ Override protected void onCreate (Bundle savedInstanceState) {super. onCreate (savedInstanceState); setContentView (R. layout. activity_main); BitmapFactory. options opts = new Options (); opts. inSampleSize = 2; iv_after = (ImageView) findViewById (R. id. iv_after); iv_before = (ImageView) findViewById (R. id. iv_pre); Bitmap after = BitmapFactory. decodeResource (getResources (), R. drawable. after19, opts); Bitmap before = BitmapFactory. decodeResource (getResources (), R. drawable. pre19, opts); // you can modify the blank bitmap alterBitmap = Bitmap. createBitmap (before. getWidth (), before. getHeight (), before. getConfig (); canvas = new Canvas (alterBitmap); paint = new Paint (); paint. setStrokeWidth (5); paint. setColor (Color. BLACK); canvas. drawBitmap (before, new Matrix (), paint); Evaluate (after); transform (alterBitmap); iv_before.setOnTouchListener (new OnTouchListener () {@ Override public boolean onTouch (View v, motionEvent) {switch (event. getAction () {case MotionEvent. ACTION_DOWN: break; case MotionEvent. ACTION_MOVE: int newX = (int) event. getX (); int newY = (int) event. getY (); for (int I =-6; I <6; I ++) {for (int j =-6; j <6; j ++) {alterBitmap. setPixel (I + newX, j + newY, Color. TRANSPARENT) ;}} iv_before.setImageBitmap (alterBitmap); break; case MotionEvent. ACTION_UP: break; default: break;} return true ;}});}}