如何通过代码而不是程序来截取手机屏幕的选定区域的截图?
当前回答
对于整页滚动截图
如果你想要捕捉一个完整的视图截图(其中包含一个滚动视图左右),那么在这个库中进行检查
https://github.com/peter1492/LongScreenshot
你所要做的就是导入Gradel,并创建一个bigscreen的对象
长截图=新BigScreenshot(这个,x, y);
当自动滚动屏幕视图组并在最后组装在一起时,将接收回调的屏幕截图位图。
get截图(Bitmap) {}
哪些可以保存到画廊或任何必要的用途,他们之后
其他回答
我已经创建了一个简单的库,从一个视图截图,要么给你一个位图对象,要么直接保存到任何你想要的路径
https://github.com/abdallahalaraby/Blink
根据上面@JustinMorris和@NiravDangi的回答https://stackoverflow.com/a/8504958/2232148,我们必须把一个视图的背景和前景像这样组合起来:
public static Bitmap takeScreenshot(View view, Bitmap.Config quality) {
Bitmap bitmap = Bitmap.createBitmap(view.getWidth(), view.getHeight(), quality);
Canvas canvas = new Canvas(bitmap);
Drawable backgroundDrawable = view.getBackground();
if (backgroundDrawable != null) {
backgroundDrawable.draw(canvas);
} else {
canvas.drawColor(Color.WHITE);
}
view.draw(canvas);
return bitmap;
}
质量参数取一个常数Bitmap。Config,通常是Bitmap.Config。RGB_565或Bitmap.Config.ARGB_8888。
您可以尝试以下库: http://code.google.com/p/android-screenshot-library/ Android截图库(ASL)允许以编程方式从Android设备捕获屏幕截图,而不需要具有root访问权限。相反,ASL利用了在后台运行的本地服务,每次设备启动时通过Android调试桥(ADB)启动。
Mualig的回答很好,但我遇到了Ewoks描述的同样的问题,我没有得到背景。所以有时已经足够好了,有时我得到黑色背景上的黑色文本(取决于主题)。
这个解决方案主要基于Mualig代码和我在Robotium中找到的代码。通过直接调用draw方法,我放弃了绘图缓存的使用。在此之前,我将尝试从当前活动中首先绘制背景。
// Some constants
final static String SCREENSHOTS_LOCATIONS = Environment.getExternalStorageDirectory().toString() + "/screenshots/";
// Get device dimmensions
Display display = getWindowManager().getDefaultDisplay();
Point size = new Point();
display.getSize(size);
// Get root view
View view = mCurrentUrlMask.getRootView();
// Create the bitmap to use to draw the screenshot
final Bitmap bitmap = Bitmap.createBitmap(size.x, size.y, Bitmap.Config.ARGB_4444);
final Canvas canvas = new Canvas(bitmap);
// Get current theme to know which background to use
final Activity activity = getCurrentActivity();
final Theme theme = activity.getTheme();
final TypedArray ta = theme
.obtainStyledAttributes(new int[] { android.R.attr.windowBackground });
final int res = ta.getResourceId(0, 0);
final Drawable background = activity.getResources().getDrawable(res);
// Draw background
background.draw(canvas);
// Draw views
view.draw(canvas);
// Save the screenshot to the file system
FileOutputStream fos = null;
try {
final File sddir = new File(SCREENSHOTS_LOCATIONS);
if (!sddir.exists()) {
sddir.mkdirs();
}
fos = new FileOutputStream(SCREENSHOTS_LOCATIONS
+ System.currentTimeMillis() + ".jpg");
if (fos != null) {
if (!bitmap.compress(Bitmap.CompressFormat.JPEG, 90, fos)) {
Log.d(LOGTAG, "Compress/Write failed");
}
fos.flush();
fos.close();
}
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
科特林
private fun screenShot() {
try {
val mPath: String = this.getExternalFilesDir(null).getAbsolutePath()
.toString() + "/temp" + ".png"
// create bitmap screenshot
val v1: View = getWindow().getDecorView().getRootView()
v1.isDrawingCacheEnabled = true
val bitmap = Bitmap.createBitmap(v1.drawingCache)
v1.isDrawingCacheEnabled = false
val imageFile = File(mPath)
val outputStream = FileOutputStream(imageFile)
val quality = 100
bitmap.compress(Bitmap.CompressFormat.PNG, quality, outputStream)
outputStream.flush()
outputStream.close()
//or you can share to test the method fast
val uriPath =
FileProvider.getUriForFile(this, getPackageName() + ".sharing.provider", imageFile)
val intent = Intent(Intent.ACTION_SEND)
intent.type = "image/*"
intent.clipData = ClipData.newRawUri("", uriPath)
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION or Intent.FLAG_GRANT_WRITE_URI_PERMISSION)
intent.putExtra(Intent.EXTRA_STREAM, uriPath)
startActivity(Intent.createChooser(intent, "Sharing to..."))
} catch (e: Throwable) {
e.printStackTrace()
}
}
Java
private void screenShot() {
try {
String mPath = this.getExternalFilesDir(null).getAbsolutePath().toString() + "/temp" + ".png";
// create bitmap screenshot
View v1 = getWindow().getDecorView().getRootView();
v1.setDrawingCacheEnabled(true);
Bitmap bitmap = Bitmap.createBitmap(v1.getDrawingCache());
v1.setDrawingCacheEnabled(false);
File imageFile = new File(mPath);
FileOutputStream outputStream = new FileOutputStream(imageFile);
int quality = 100;
bitmap.compress(Bitmap.CompressFormat.PNG, quality, outputStream);
outputStream.flush();
outputStream.close();
//or you can share to test the method fast
Uri uriPath = FileProvider.getUriForFile(this, getPackageName() + ".sharing.provider", imageFile);
Intent intent = new Intent(Intent.ACTION_SEND);
intent.setType("image/*");
intent.setClipData(ClipData.newRawUri("", uriPath));
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
intent.putExtra(Intent.EXTRA_STREAM, uriPath);
startActivity(Intent.createChooser(intent, "Sharing to..."));
} catch (Throwable e) {
e.printStackTrace();
}
}
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