Chart.java

public class Chart extends VLinearLayout implements BaseView{private Activity context;private ImageView m_ImageView;private Bitmap img;private int ScaleAngle = 0; private Button turnLeft,turnRight;private HLinearLayout B_LinearLayout;private int[] WindowXY = new int[2];public Chart(Activity context) {super(context);this.context = context;m_ImageView = new ImageView(context);DisplayMetrics dm = new DisplayMetrics();context.getWindowManager().getDefaultDisplay().getMetrics(dm);WindowXY[0] = dm.widthPixels;WindowXY[1] = dm.heightPixels;B_LinearLayout = new HLinearLayout(context);turnLeft = new Button(context);turnLeft.setText("左转");turnRight = new Button(context);turnRight.setText("右转");turnLeft.setOnClickListener(new OnClickListener(){@Overridepublic void onClick(View v) {turnLeft();}});turnRight.setOnClickListener(new OnClickListener(){@Overridepublic void onClick(View v) {turnRight();}});B_LinearLayout.addView(turnLeft);turnLeft.setPadding(10, 5, 10, 5);B_LinearLayout.addView(turnRight);turnRight.setPadding(10, 5, 10, 5);this.addView(B_LinearLayout);this.addView(m_ImageView, new LinearLayout.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT, LinearLayout.LayoutParams.FILL_PARENT));}public void turnLeft(){ScaleAngle--; int bmpWidth = img.getWidth();int bmpHeight = img.getHeight();Matrix matrix = new Matrix(); matrix.setRotate( 90 * ScaleAngle); Bitmap newBit = Bitmap.createBitmap(img, 0, 0, bmpWidth, bmpHeight, matrix, true);m_ImageView.setImageBitmap(newBit);}public void turnRight(){ScaleAngle++; int bmpWidth = img.getWidth();int bmpHeight = img.getHeight(); Matrix matrix = new Matrix(); matrix.setRotate( 90 * ScaleAngle); Bitmap newBit = Bitmap.createBitmap(img, 0, 0, bmpWidth, bmpHeight, matrix, true);m_ImageView.setImageBitmap(newBit);}public void setImage(String param){if (param == null || param.equals("")){Log.v("default", "image");try {img = BitmapFactory.decodeStream(context.getResources().getAssets().open("test.png"));} catch (IOException e) {Log.e("读取Assets下图片资源失败!", e.getMessage(), e);}}else{if (param.startsWith("/")) {img = BitmapFactory.decodeStream(ImageUtil.class.getResourceAsStream(param));} else if (param.startsWith("res-img:")) {try {img = BitmapFactory.decodeStream(context.getResources().getAssets().open(param.substring(8)));} catch (IOException e) {Log.e("读取Assets下图片资源失败!", e.getMessage(), e);}} else if (param.startsWith("stream:")) {String s = param.substring(7);img = BitmapFactory.decodeStream(new java.io.ByteArrayInputStream(StringUtil.fromBase64(s)));}}int bmpWidth = img.getWidth();int bmpHeight = img.getHeight();Log.v("base", bmpWidth+"");Log.v("base", bmpHeight+"");if(bmpWidth < WindowXY[0] && bmpHeight < WindowXY[1]){Matrix matrix = new Matrix(); float one = (float)WindowXY[0]/bmpWidth;float two = (float)WindowXY[1]/bmpHeight;Log.v("one", one+"");Log.v("two", two+"");if(one < two){Log.v("one", one+"");matrix.postScale(one, one);}else{Log.v("two", two+"");matrix.postScale(two, two);}img = Bitmap.createBitmap(img, 0, 0, bmpWidth, bmpHeight, matrix, true);}m_ImageView.setImageBitmap(img);}@Overridepublic String getValue() {return null;}@Overridepublic void setValue(String text) {}@Overridepublic View getView() {return this;}}

 
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