android - 如何使 EditText 在 Canvas 上可点击？

Question

我想在 Canvas 上点击编辑文本。 我想从用户那里获取输入并将该编辑文本设置为 Canvas 。

这是我的代码:

@Override
protected void onDraw(Canvas canvas) {


    for (Point point : points) {

        LinearLayout lL = new LinearLayout(getContext());

           EditText editTextView = new EditText(getContext()); 

           editTextView.setFocusableInTouchMode(true);
           editTextView.setFocusable(false);
           editTextView.setClickable(true);

           editTextView.setText("sadsdadadadadsadasds");
           editTextView.setVisibility(View.VISIBLE);
           lL.addView(editTextView);
           lL.setDrawingCacheEnabled(true);

            lL.measure(canvas.getWidth(), canvas.getHeight());
            lL.layout(0, 0, canvas.getWidth(), canvas.getHeight());

            canvas.drawBitmap(lL.getDrawingCache(),  point.x, point.y, mPaint);
     //   canvas.drawText("(0,0)", point.x, point.y, mPaint);




      //  Log.d(TAG, "Painting: "+point);
    }
}


@Override
public boolean onTouch(View v, MotionEvent event) {
    float x = event.getX();
    float y = event.getY();
    InputMethodManager inputMethodManager;
    TextView tv1=new TextView(getContext());
    LinearLayout lL = new LinearLayout(getContext());

    // return super.onTouchEvent(event);
    Point point = new Point();
    point.x = (int) event.getX();
    point.y = (int) event.getY();
    points.add(point);
    invalidate();
    return true;
}

错误:

问题是 EditText 被放置在 Canvas 上但不能点击

Answer 1

首先不要在 Canvas 上绘制它，因为触摸仅应用于该 Canvas ，在您的 Activity/xml 中绘制编辑文本和您的自定义 View ( Canvas )，如果仍然不可点击，请尝试将编辑文本置于最前面

yourLayout.bringChildToFront(yourEditText);

你的 xml 应该是这样的

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <!-- your custom view here -->


    <!-- edittext here -->
    <EditText
        android:id="@+id/settings_text_y"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>
</RelativeLayout>