截图怎么裁剪？
截图怎么裁剪？
提问于 2018-09-05 09:00:55
你好，我有一个代码来采取截图，然后分享它和它的工作很好，但我想从顶部和底部裁剪这个截图。我希望能对我有所帮助，因为我在编程方面是新手。下面是我使用的代码：
share.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Bitmap bitmap = takeScreenshot();
saveBitmap(bitmap);
shareIt();
}
public Bitmap takeScreenshot() {
View rootView = findViewById(android.R.id.content).getRootView();
rootView.setDrawingCacheEnabled(true);
return rootView.getDrawingCache();
}
private void saveBitmap(Bitmap bitmap) {
imagePath = new File(Environment.getExternalStorageDirectory() + "/screenshot.png"); ////File imagePath
FileOutputStream fos;
try {
fos = new FileOutputStream(imagePath);
bitmap.compress(Bitmap.CompressFormat.PNG, 100, fos);
fos.flush();
fos.close();
} catch (FileNotFoundException e) {
Log.e("GREC", e.getMessage(), e);
} catch (IOException e) {
Log.e("GREC", e.getMessage(), e);
}
}
private void shareIt() {
Uri myUri = Uri.fromFile(imagePath);
Intent sharingIntent = new Intent(Intent.ACTION_SEND);
sharingIntent.setType("image/*");
sharingIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
sharingIntent.putExtra(Intent.EXTRA_STREAM, myUri);
startActivity(Intent.createChooser(sharingIntent, "Share via"));
}
});
displayResults();
}回答 1
Stack Overflow用户
发布于 2018-09-05 09:38:01
如果你想使用库，你可以实现这个library。并遵循下面的代码
来自ArthurHub/Android-Image-Cropper
AndroidManifest.xml
<activity android:name="com.theartofdev.edmodo.cropper.CropImageActivity"
android:theme="@style/Base.Theme.AppCompat"/> <!-- optional (needed if default theme has no action bar) -->启动CropImageActivity的
// start picker to get image for cropping and then use the image in cropping
activity
CropImage.activity()
.setGuidelines(CropImageView.Guidelines.ON)
.start(this);
// start cropping activity for pre-acquired image saved on the device
CropImage.activity(imageUri)
.start(this);
// for fragment (DO NOT use `getActivity()`)
CropImage.activity()
.start(getContext(), this);覆盖onActivityResult
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == CropImage.CROP_IMAGE_ACTIVITY_REQUEST_CODE) {
CropImage.ActivityResult result = CropImage.getActivityResult(data);
if (resultCode == RESULT_OK) {
Uri resultUri = result.getUri();
} else if (resultCode == CropImage.CROP_IMAGE_ACTIVITY_RESULT_ERROR_CODE) {
Exception error = result.getError();
}
}
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/52175714
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