Android06-常用控件(ImageView-ProgressBar-Handler)
图片框
1.scaleType属性:ImageView
2.读取图片路径:
3.局部放大:
Resources res=getResources();
Bitmap bitmap=BitmapFactory.decodeResource(res,R.drawable.s6);
图片id.setOnTouchListener(new View.OnTouchListener() { @Override public boolean onTouch(View view, MotionEvent motionEvent) { //获取触摸坐标 float x= motionEvent.getX(); float Y=motionEvent.getY(); //抠图 Bitmap newbitmap= Bitmap.createBitmap(bitmap,(int)x,(int)Y,50,50); imagenew.setImageBitmap(newbitmap); return true; } });
3.加减透明度:
//设置默认透明度 图片id.setImageAlpha(0-255);