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
只是扩展塔拉洛卡的答案。您必须添加以下行才能使其工作。我已将映像名称设置为静态。请确保您使用taraloca的时间戳变量,以防您需要动态图像名称。
// Storage Permissions
private static final int REQUEST_EXTERNAL_STORAGE = 1;
private static String[] PERMISSIONS_STORAGE = {
Manifest.permission.READ_EXTERNAL_STORAGE,
Manifest.permission.WRITE_EXTERNAL_STORAGE
};
private void verifyStoragePermissions() {
// Check if we have write permission
int permission = ActivityCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE);
if (permission != PackageManager.PERMISSION_GRANTED) {
// We don't have permission so prompt the user
ActivityCompat.requestPermissions(this, PERMISSIONS_STORAGE, REQUEST_EXTERNAL_STORAGE);
}else{
takeScreenshot();
}
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
if (requestCode == REQUEST_EXTERNAL_STORAGE) {
takeScreenshot();
}
}
}
在AndroidManifest.xml文件中,以下条目是必须的:
< uses-permission android: name = " android.permission。READ_EXTERNAL_STORAGE " / > < uses-permission android: name = " android.permission。WRITE_EXTERNAL_STORAGE " / >
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
在android中截取视图的截图。
public static Bitmap getViewBitmap(View v) {
v.clearFocus();
v.setPressed(false);
boolean willNotCache = v.willNotCacheDrawing();
v.setWillNotCacheDrawing(false);
int color = v.getDrawingCacheBackgroundColor();
v.setDrawingCacheBackgroundColor(0);
if (color != 0) {
v.destroyDrawingCache();
}
v.buildDrawingCache();
Bitmap cacheBitmap = v.getDrawingCache();
if (cacheBitmap == null) {
return null;
}
Bitmap bitmap = Bitmap.createBitmap(cacheBitmap);
v.destroyDrawingCache();
v.setWillNotCacheDrawing(willNotCache);
v.setDrawingCacheBackgroundColor(color);
return bitmap;
}
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();
}
}
参数视图是根布局对象。
public static Bitmap screenShot(View view) {
Bitmap bitmap = null;
if (view.getWidth() > 0 && view.getHeight() > 0) {
bitmap = Bitmap.createBitmap(view.getWidth(),
view.getHeight(), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
view.draw(canvas);
}
return bitmap;
}
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