英文:
Adding border to image like google photo scan app in android
问题
在安卓中是否可能在不向用户显示图像的情况下为图像添加边框，类似于Google Photo Scan应用中的做法... 这里添加了带有PhotoScan徽标的图像边框。
英文:
Is it possible to add border to a image without showing the image to the user in android.
Like google photo scan app..Here a border is added to image with photoscan logo
答案1
得分: 1
你可以使用这个库：
implementation 'com.github.siyamed:android-shape-imageview:0.9.+@aar'
在 XML 文件中：
<com.github.siyamed.shapeimageview.BubbleImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="@drawable/neo"
app:siArrowPosition="right"
app:siSquare="true"/>
英文:
You can use this this library
implementation 'com.github.siyamed:android-shape-imageview:0.9.+@aar'
in Xml File
<com.github.siyamed.shapeimageview.BubbleImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="@drawable/neo"
app:siArrowPosition="right"
app:siSquare="true"/>
答案2
得分: 0
- 设计了一个自定义布局，其中包含一个图片视图。
- 将其实例化为一个视图对象。
- 在布局中将我的图片设置到该图片视图中。
- 将视图绘制到位图并保存。
用于实例化和绘制的代码
public Bitmap drawToBitmap(Context context, final int layoutResId,
final int width, final int height, String imageDescription) {
final Bitmap bmp = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
final Canvas canvas = new Canvas(bmp);
final LayoutInflater inflater =
(LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
final View layout = inflater.inflate(layoutResId, null);
ImageView img = layout.findViewById(R.id.imgAnalysedBitmap);
img.setImageBitmap(croppedBitmap);
layout.setDrawingCacheEnabled(true);
layout.measure(
View.MeasureSpec.makeMeasureSpec(canvas.getWidth(), View.MeasureSpec.EXACTLY),
View.MeasureSpec.makeMeasureSpec(canvas.getHeight(), View.MeasureSpec.EXACTLY));
layout.layout(0, 0, layout.getMeasuredWidth(), layout.getMeasuredHeight());
canvas.drawBitmap(layout.getDrawingCache(), 0, 0, new Paint());
return bmp;
}
使用：
final DisplayMetrics metrics = getResources().getDisplayMetrics();
Bitmap bmap = drawToBitmap(this, R.layout.layout_watermark, metrics.widthPixels, metrics.heightPixels, imageDescription);
英文:
- Designed a custom layout with a image view
- Inflated it to a view object
- Set the my image to that image view in layout
- Drawn the view to a bitmap and saved it
Code for inflating and drawing
public Bitmap drawToBitmap(Context context, final int layoutResId,
final int width, final int height, String imageDescription) {
final Bitmap bmp = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
final Canvas canvas = new Canvas(bmp);
final LayoutInflater inflater =
(LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
final View layout = inflater.inflate(layoutResId, null);
ImageView img = layout.findViewById(R.id.imgAnalysedBitmap);
img.setImageBitmap(croppedBitmap);
layout.setDrawingCacheEnabled(true);
layout.measure(
View.MeasureSpec.makeMeasureSpec(canvas.getWidth(), View.MeasureSpec.EXACTLY),
View.MeasureSpec.makeMeasureSpec(canvas.getHeight(), View.MeasureSpec.EXACTLY));
layout.layout(0, 0, layout.getMeasuredWidth(), layout.getMeasuredHeight());
canvas.drawBitmap(layout.getDrawingCache(), 0, 0, new Paint());
return bmp;
}
Usage:
final DisplayMetrics metrics = getResources().getDisplayMetrics();
Bitmap bmap = drawToBitmap(this, R.layout.layout_watermark, metrics.widthPixels, metrics.heightPixels, imageDescription);
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