在我的应用中,我想捕获我的Android应用 UI 的一部分并以编程方式保存。
例如,我想做这个动作:
Activity/Fragment
用户点击一个Button
。Layout
部分的LinearLayout
id="captureMe"
。{/ li>
我该如何实现它?
答案 0 :(得分:2)
试试这个,希望它有效
LinearLayout captureMe = (LinearLayout)findViewById(R.id.captureMe);
captureMe.setDrawingCacheEnabled(true);
captureMe.buildDrawingCache();
bitmap = captureMe.getDrawingCache();
答案 1 :(得分:2)
您只需使用此功能即可传递您的视图对象
public Bitmap viewToBitmap(View view) {
Bitmap bitmap = Bitmap.createBitmap(view.getWidth(), view.getHeight(), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
view.draw(canvas);
return bitmap;
}
然后保存此文件
public void saveImage(Bitmap inImage) {
String root = Environment.getExternalStorageDirectory().toString();
File mydir = new File(root + "/demo/");
mydir.mkdirs();
String fname = "Image.jpeg";
File file = new File (mydir, fname);
String path2=file.getPath();
Uri uri=Uri.fromFile(file);
try {
FileOutputStream out = new FileOutputStream(file);
inImage.compress(Bitmap.CompressFormat.JPEG, 90, out);
out.flush();
out.close();
}catch (Exception e)
{
e.printStackTrace();
}
}
答案 2 :(得分:1)
首先使用此函数获取要捕获的视图位图:
public static Bitmap getViewBitmap(View v, int width, int height) {
Bitmap viewBitmap = Bitmap.createBitmap(width , height,
Bitmap.Config.ARGB_8888);
Canvas c = new Canvas(viewBitmap);
v.layout(0, 0, v.getLayoutParams().width, v.getLayoutParams().height);
v.draw(c);
return viewBitmap;
}
然后使用此代码将此位图保存到存储:
String path = Environment.getExternalStorageDirectory().toString();
OutputStream fOutputStream = null;
File file = new File(path + "/Captures/", "screen.jpg");
try {
fOutputStream = new FileOutputStream(file);
capturedBitmap.compress(Bitmap.CompressFormat.JPEG, 100, fOutputStream);
fOutputStream.flush();
fOutputStream.close();
MediaStore.Images.Media.insertImage(getContentResolver(),
file.getAbsolutePath(), file.getName(), file.getName());
} catch (FileNotFoundException e) {
e.printStackTrace();
Toast.makeText(this, "Save Failed", Toast.LENGTH_SHORT).show();
return;
} catch (IOException e) {
e.printStackTrace();
Toast.makeText(this, "Save Failed", Toast.LENGTH_SHORT).show();
return;
}