我正在为剧院的座位设计一个customview。对于x大型手机来说，它运行顺畅。但在低密度设备中，它很难配合使用。
我的customview.java
public class SeatView extends ImageView {
float dim;
int status;
Canvas canvas1;
boolean sela=false,ds=false,ua=false;
Bitmap selectedAvailableImage,deselectedAvailableImage,unavailableImage;
Drawable selectedAvailable,deselectedAvailable,unavailable;
SeatView seatView;
public SeatView(Context context, AttributeSet attrs) {
super(context, attrs);
TypedArray a = context.getTheme().obtainStyledAttributes(attrs,R.styleable.SeatView,0, 0);
try {
dim = a.getDimension(R.styleable.SeatView_dim, 20f);
status=a.getInt(R.styleable.SeatView_status,1);
selectedAvailableImage=BitmapFactory.decodeResource(getResources(),R.drawable.seat_selected);
deselectedAvailableImage=BitmapFactory.decodeResource(getResources(),R.drawable.seat_available);
unavailableImage=BitmapFactory.decodeResource(getResources(),R.drawable.seat_unavailable);
selectedAvailable=getResources().getDrawable(R.drawable.seat_selected);
deselectedAvailable=getResources().getDrawable(R.drawable.seat_available);
unavailable=getResources().getDrawable(R.drawable.seat_unavailable);
//selectedAvailable.setBounds(100,100,100,100);
//deselectedAvailable.setBounds(10,10,10,10);
//unavailable.setBounds(10,10,10,10);
} finally {
a.recycle();
}
}
@Override
public boolean onTouchEvent(MotionEvent event) {
if(event.getAction()==MotionEvent.ACTION_UP){
if(status==0){
status=1;
invalidate();
}else if(status==1){
status=0;
invalidate();
}
}
return true;
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
setMeasuredDimension(50,50);
}
public void setAvailable(){
status=1;
invalidate();
}
public void setDisabled(){
status=2;
invalidate();
}
public void setSelected(){
status=0;
invalidate();
}
public int getSeatStatus(){
return status;
}
public void init(Canvas canvas){
switch (status){
case 0:
//sela=true;ds=false;ua=false;
//setImageDrawable(selectedAvailable);
canvas.drawBitmap(selectedAvailableImage,0,0,null);
break;
case 1:
//sela=false;ds=true;ua=false;
//setImageDrawable(deselectedAvailable);
canvas.drawBitmap(deselectedAvailableImage,0,0,null);
break;
case 2:
//sela=false;ds=false;ua=true;
//setImageDrawable(unavailable);
canvas.drawBitmap(unavailableImage,0,0,null);
break;
default: //setImageDrawable(deselectedAvailable);
canvas.drawBitmap(deselectedAvailableImage,0,0,null);
break;
}
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
init(canvas);
}
}
和我的mainactivity.java
public class MainActivity extends AppCompatActivity {
ImageView imageView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//ButterKnife.bind(this);
TableLayout tableLayout=(TableLayout)findViewById(R.id.tblelay);
// Toast.makeText(getApplicationContext(),seatView.getSeatStatus()+"",Toast.LENGTH_LONG).show();
//LinearLayout relativeLayout=(LinearLayout) findViewById(R.id.tblelay);
for (int j=0;j<20;j++){
TableRow tableRow=new TableRow(this);
for (int i=1;i<20;i++){
SeatView seatView=new SeatView(this,null);
seatView.setAvailable();
seatView.setId(i);
if(i%5==0){
seatView.setVisibility(View.INVISIBLE);
}
if(seatView.getParent()!=null)
((ViewGroup)seatView.getParent()).removeView(seatView); // <- fix
if(tableRow.getParent()!=null)
((ViewGroup)tableRow.getParent()).removeView(tableRow);
/* if(i>0){
RelativeLayout.LayoutParams layoutParams=new Rela tiveLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
layoutParams.addRule(RelativeLayout.RIGHT_OF, (i-1));
}*/
tableRow.addView(seatView);
}
tableLayout.addView(tableRow);}
}
}
点击here获取屏幕截图
