SurfaceView sample code

  次阅读 来源:互联网(转载协议) 2015-10-03 15:13 我要评论(0)

sample code

package jp.deathmarch.yukkuri;import android.content.Context; import android.graphics.Canvas; import android.graphics.Paint; import android.graphics.drawable.ShapeDrawable; import android.graphics.drawable.shapes.RectShape; import android.util.Log; import android.view.KeyEvent; import android.view.SurfaceHolder; import android.view.SurfaceView;/*** Game盤.** @author shuji*/ public class GameBoadView extends SurfaceView {private Component youmu;public GameBoadView(Context context) {super(context);getHolder().addCallback(new SurfaceCallback());setFocusable(true);requestFocus();}public void setup() {youmu = new Component(getClass().getResourceAsStream("youmu.png"));}void repaint() {Log.d("Yukkuri", "repaint");Canvas canvas = null;SurfaceHolder surfaceHolder = getHolder();try {canvas = surfaceHolder.lockCanvas();if (canvas == null)return;synchronized (surfaceHolder) {draw(canvas);}} finally {if (canvas != null)surfaceHolder.unlockCanvasAndPost(canvas);}}@Overridepublic void draw(Canvas canvas) {Log.d("Yukkuri", "draw");ShapeDrawable rect = new ShapeDrawable(new RectShape());Paint paint = rect.getPaint();paint.setColor(0xFF000000);rect.setBounds(0, 0, getWidth(), getHeight());rect.draw(canvas);youmu.drawable.draw(canvas);}@Overridepublic boolean onKeyDown(int keyCode, KeyEvent event) {Log.d("Yukkuri", "onKeyDown" + event);switch (keyCode) {case KeyEvent.KEYCODE_DPAD_UP:youmu.up();break;case KeyEvent.KEYCODE_DPAD_RIGHT:youmu.right();break;case KeyEvent.KEYCODE_DPAD_DOWN:youmu.down();break;case KeyEvent.KEYCODE_DPAD_LEFT:youmu.left();break;case KeyEvent.KEYCODE_DPAD_CENTER:youmu.scaleUp();break;default:break;}repaint();return true;}/*** SurfaceView Callback class.* <p>* SurffaceViewの生成、破棄時などにコールバックされる.* </p>** @author shuji**/private class SurfaceCallback implements SurfaceHolder.Callback {public void surfaceChanged(SurfaceHolder holder, int format, int width,int height) {}public void surfaceCreated(SurfaceHolder holder) {Log.d("Yukkuri", "surfaceCreated");repaint();}public void surfaceDestroyed(SurfaceHolder arg0) {Log.d("Yukkuri", "surfaceDestroyed");}} }

package jp.deathmarch.yukkuri;import java.io.InputStream;import android.graphics.Rect; import android.graphics.drawable.BitmapDrawable;public class Component {BitmapDrawable drawable;int a = 5;int width;int height;Rect bounds;public Component(InputStream input) {this.drawable = new BitmapDrawable(input);width = drawable.getIntrinsicWidth();height = drawable.getIntrinsicHeight();bounds = new Rect(0, 0, width, height);}public void left() {this.bounds.left -= a;this.bounds.right -= a;this.drawable.setBounds(bounds);}public void right() {this.bounds.left += a;this.bounds.right += a;this.drawable.setBounds(bounds);}public void down() {this.bounds.top += a;this.bounds.bottom += a;this.drawable.setBounds(bounds);}public void up() {this.bounds.top -= a;this.bounds.bottom -= a;this.drawable.setBounds(bounds);}public void scaleUp() {width = (int) (width * 1.2);this.bounds.right = this.bounds.left + width;height = (int) (height * 1.2);this.bounds.bottom = this.bounds.top + height;this.drawable.setBounds(bounds);}public void setPosition(int x, int y) {bounds.left = x;bounds.right = x + width;bounds.top = y;bounds.bottom = y + height;}}

package jp.deathmarch.yukkuri;import android.app.Activity; import android.os.Bundle; import android.util.Log; import android.widget.FrameLayout;public class Yukkuri extends Activity {private GameBoadView gameBoad;@Overrideprotected void onCreate(Bundle savedInstanceState) {Log.d("Yukkuri", "onCreate");super.onCreate(savedInstanceState);this.gameBoad = new GameBoadView(this);FrameLayout layout = new FrameLayout(this);layout.addView(gameBoad);setContentView(layout);this.gameBoad.setup();} }

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