Question

我尝试从帧缓冲区中获取screencapture，它适用于我的布局视图我使用了here中的以下代码：

String mPath = Environment.getExternalStorageDirectory().toString() + "/" + ACCUWX.IMAGE_APPEND;   

// create bitmap screen capture
Bitmap bitmap;
View v1 = mCurrentUrlMask.getRootView();
v1.setDrawingCacheEnabled(true);
bitmap = Bitmap.createBitmap(v1.getDrawingCache());
v1.setDrawingCacheEnabled(false);

OutputStream fout = null;
imageFile = new File(mPath);

try {
    fout = new FileOutputStream(imageFile);
    bitmap.compress(Bitmap.CompressFormat.JPEG, 90, fout);
    fout.flush();
    fout.close();

} catch (FileNotFoundException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
} catch (IOException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
}

但我想用相机视图捕捉布局视图，因为我在布局视图的背景或透明网页中也使用了cameraview。一个转变是分别拍摄相机图像和布局视图并将它们放在一起并保存新的位图。

有谁能建议我对此有任何正确的解决方案？提前致谢

Answer 1

为了将两个图像组合在一起，您可能希望按照此代码100％将两个图像叠加在一起

 Bitmap border = BitmapFactory.decodeResource(getResources(), R.drawable.vignette2);
int width = bmp.getWidth();
int height = bmp.getHeight();
change = Bitmap.createScaledBitmap(change, width, height, false); // change is Bitmap
Canvas canvas = new Canvas(change);
Bitmap scaledBorder = Bitmap.createScaledBitmap(border,width,height, false);
canvas.drawBitmap(scaledBorder, 0, 0,null);
//canvas.drawBitmap(k, 0, 0, null);
view.setImageBitmap(change); // view is the imageView

现在部分保存视图，简单的方法是

view.setDrawingCacheEnabled(true);
        view.buildDrawingCache();
        save = view.getDrawingCache(); // save is a Bitmap

然后：

                final FileOutputStream out = new FileOutputStream(file);
            save.compress(Bitmap.CompressFormat.PNG, 100, out);
            out.flush();
            out.close();
            sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED,
                    Uri.parse("file://"
                            + Environment.getExternalStorageDirectory())));
            Toast.makeText(getApplication(), "Image Saved",
                    Toast.LENGTH_SHORT).show();

这将保存您对imageview的视图，或者如果其布局然后只是设置您的布局并为其命名，然后将其替换为view 请不要忘记检查保存是否成功

        view.setDrawingCacheEnabled(false);

Answer 2

我无法将代码发布为评论，所以你去吧你可以在你的onActivity上传递那个特定的方法，或者只是在你发送意图后传递它，或者你的自定义相机然后你可以控制，当你点击相机按钮时只需添加一个方法来捕捉视图。这是我保存视图的方法。

void Save() {
    if (null != view.getDrawable()) {
        view.setDrawingCacheEnabled(true);
        view.buildDrawingCache();
        save = view.getDrawingCache();
        final File myDir = new File(folder);
        myDir.mkdirs();
        final Random generator = new Random();
        int n = 10000;
        n = generator.nextInt(n);
        final String fname = "StyleMe-" + n + ".png";
        final File file = new File(myDir, fname);
        if (file.exists())
            file.delete();
        try {
            final FileOutputStream out = new FileOutputStream(file);
            save.compress(Bitmap.CompressFormat.PNG, 100, out);
            out.flush();
            out.close();
            sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED,
                    Uri.parse("file://"
                            + Environment.getExternalStorageDirectory())));
            Toast.makeText(getApplication(), "Image Saved",
                    Toast.LENGTH_SHORT).show();
        } catch (final Exception e) {
            Toast.makeText(getApplication(),
                    "Something Went Wrong check if you have Enough Memory",
                    Toast.LENGTH_LONG).show();
        }
    } else {
        final Toast tst = Toast.makeText(getApplication(),
                "Please Select An Image First", Toast.LENGTH_LONG);
        tst.setGravity(Gravity.CENTER, 0, 0);
        tst.show();
    }
    view.setDrawingCacheEnabled(false);
}

为了让你不断保存视图然后只需添加循环。当你点击循环开始的相机按钮!!在我的保存方法中，不要担心重叠名称:)。随机它将生成每个图像的名称！

截屏摄像机视图+布局视图android增强现实

2 个答案: