具有自定义视图的objectanimator

Question

我希望在自定义视图上有一个简单的动画。我使用了objectanimator，但自定义视图没有移动。

当我尝试使用另一个对象（如textview）时，它可以工作。

以下是我的代码。 z1是我想移动的自定义视图。

public class FinalActivity extends Activity {
    MyViewX z1;
    TextView t1;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_final);

        z1 = (MyViewX) findViewById(R.id.xview);
        t1 = (TextView) findViewById(R.id.textView1);
    }

    @Override
    public void onWindowFocusChanged(boolean hasFocus) {
        if(hasFocus){
            ObjectAnimator animation = ObjectAnimator.ofFloat(z1, "translationX", 100f);
            animation.setDuration(5000);
            animation.start();
            }   
    }
}

---

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:ads="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_margin="5sp"
    tools:context=".FrmActivity" >

      <com.test.game.myviewx
        android:id="@+id/xview"
        android:layout_width="200dp"
        android:layout_height="200dp"
    />

      <TextView
          android:id="@+id/textView1"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:layout_alignParentLeft="true"
          android:layout_alignParentTop="true"
          android:layout_marginLeft="72dp"
          android:layout_marginTop="173dp"
          android:text="TextView" />

</RelativeLayout>

---

public class MyViewX extends View
    {

        public MyViewX(Context context) {
            super(context);
            // TODO Auto-generated constructor stub
        }

        public MyViewX(Context context, AttributeSet attributeset) {
            super(context);
            // TODO Auto-generated constructor stub
        }

        @Override
        protected void onDraw(Canvas canvas)
        {
            super.onDraw(canvas);
            Resources res = getResources();
            Bitmap bitmap = BitmapFactory.decodeResource(res, R.drawable.base1);


            int x=80;
            int y=80;
            int radius=40;
            Paint paint=new Paint();
            // Use Color.parseColor to define HTML colors
            paint.setColor(Color.parseColor("#CD5C5C"));
            canvas.drawCircle(x,x, radius, paint);
            canvas.drawBitmap(bitmap, 0, 0, paint);
        }


    }

---

代码不会崩溃并且似乎运行但是自定义视图中的圆圈和位图不会移动。

我错过了什么？

Answer 1

当你创建myviewx的构造函数时，我看到一个问题

请编辑它

public class myviewx extends View {

    public myviewx(Context context) {
        super(context);
    }

    public myviewx(Context context, @Nullable AttributeSet attrs) {
        super(context, attrs);
    }

    public myviewx(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }

    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);
        Resources res = getResources();
        Bitmap bitmap = BitmapFactory.decodeResource(res, R.drawable.base1);

        int x = 80;
        int y = 80;
        int radius = 40;
        Paint paint = new Paint();
        // Use Color.parseColor to define HTML colors
        paint.setColor(Color.parseColor("#CD5C5C"));
        canvas.drawCircle(x, x, radius, paint);
        canvas.drawBitmap(bitmap, 0, 0, paint);
    }
}