如何在 Android 编码中在 ImageView 上编写文本?

2022-01-24 00:00:00 android java imageview bitmapfactory

您好，我一直在尝试在 Imageview 上编写数字.N 个问题的图像.如果用户输入的答案是正确的，那么它应该显示带有勾号图像的问题编号，否则带有错误标记图像的问题编号.我需要在图片上写下问题编号.我的代码在这里:

Hi I've been trying to write Numbers on Imageview. Images for N number of questions. If the user entered answer is correct, then it should be displayed with question number with tick mark image else question number with wrong mark image. I need to write the question number on the image. My code is here:

    LinearLayout l_layout = (LinearLayout) findViewById(R.id.linear_view_report);
    LayoutParams param = new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT, 1.0f);
    ImageView[] imgview=new ImageView[questions.length];
    for(int i=0;i<no_of_questions;i++)
    {
                if(userEnteredAnswers[i]==correct_answer[i]){           
                    Bitmap bm=BitmapFactory.decodeResource(getResources(),R.drawable.correct);
                    Canvas canvas = new Canvas(bm);
                    Paint paint = new Paint(); 
                    paint.setColor(Color.BLACK); 
                    paint.setTextSize(10); 
                    canvas.drawText(i, 5, 5, paint);

                    imgview[i]=new ImageView(this);
                    imgview[i].setImageDrawable(new BitmapDrawable(bm));
                    l_layout.addView(imgview[i]);
                }
                else {          
                    Bitmap bm=BitmapFactory.decodeResource(getResources(),R.drawable.wrong);
                    Canvas canvas = new Canvas(bm);
                    Paint paint = new Paint(); 
                    paint.setColor(Color.BLACK); 
                    paint.setTextSize(10); 
                    canvas.drawText(i, 5, 5, paint);

                    imgview[i]=new ImageView(this);
                    imgview[i].setImageDrawable(new BitmapDrawable(bm));
                    l_layout.addView(imgview[i]);
                }       
            }

我收到此警告:

The constructor BitmapDrawable(Bitmap) is deprecated

图像在运行时不显示.我做错了什么?

Image doesn't showing at run time. What am I doing wrong?

推荐答案

我相信不覆盖任何东西的最简单的解决方法是拥有一个 TextView 并使用 drawable 设置其背景代码>资源.

I believe the easiest workaround without overriding anything would be to have a TextView and set its background with a drawable resource.

例如:

TextView t = (TextView)findViewById(R.id.my_text_view);
// setting gravity to "center"
t.setGravity(Gravity.CENTER);
t.setBackgroundResource(R.drawable.my_drawable);
t.setText("FOO");

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