Question

我想要做的是将图像绘制到AutoCompleteTextView小部件中。

经过一些研究后： http://www.droidnova.com/playing-with-graphics-in-android-part-i,147.html 和 http://developer.android.com/resources/samples/NotePad/src/com/example/android/notepad/NoteEditor.html

我把以下课程放在一起......

public class myAutoCompleteTextView extends AutoCompleteTextView
{
    //member variables
    private Rect mRect;
    private Paint mPaint;


    /**
     * Constructors used by LayoutInflater
     */
    public myAutoCompleteTextView(Context context, AttributeSet attrs, int defStyle)
    {
        super(context, attrs, defStyle);
        mRect = new Rect();
        mPaint = new Paint();
    }

    public myAutoCompleteTextView(Context context, AttributeSet attrs)
    {
        super(context, attrs);
        mRect = new Rect();
        mPaint = new Paint();
    }

    public myAutoCompleteTextView(Context context)
    {
        super(context);
        mRect = new Rect();
        mPaint = new Paint();
    }

    @Override
    protected void onDraw(Canvas canvas)
    {

        Bitmap _scratch = BitmapFactory.decodeResource(getResources(), R.drawable.search);

        //canvas.drawBitmap(_scratch, 0.0f, 0.0f, mPaint);
        canvas.drawBitmap(_scratch, 0.0f, 0.0f, null);

        // Finishes up by calling the parent method
        super.onDraw(canvas);

        //this.invalidate();
    }

}

和XML布局......

    <com.test.customcontrols.myAutoCompleteTextView
    android:id="@+id/myautocomplete"
    android:layout_width="200dip"
    android:layout_height="wrap_content"
    android:layout_marginTop="20dip"
    android:gravity="center_horizontal"
    android:layout_gravity="center_horizontal"
    android:inputType="textCapWords|textNoSuggestions|textVisiblePassword"/>

不幸的是，AutoCompleteTextView看起来似乎没有动过。如何将我的图像合并到小部件的常用背景上，我该怎么办？

Answer 1

制作自定义组件需要进行一些详细的研究......与此同时我解决了它：

AutoCompleteTextView mAutoCompleteTextView;
mAutoCompleteTextView = (AutoCompleteTextView) findViewById(R.id.myautocomplete);
mAutoCompleteTextView.setCompoundDrawablesWithIntrinsicBounds(getResources().getDrawable(R.drawable.myimage), null, null, null);

无法将我的图像绘制到扩展小部件中

1 个答案: