如何在从图库中选择图像时裁剪图像

Question

im参考本教程-->http://www.androidcoding.in/2018/02/17/android-upload-image-using-retrofit-library-part2/

本教程只从图库中选择图像，而不裁剪图像

实际上，我的想法是从具有裁剪功能的图库中选择一张图像，并使用您将在我的代码中找到的改进帖子上传该图像->除了作物特征之外，这是可以实现的

只剩下裁剪了。。我需要的帮助

以下是我迄今为止的代码-->

class EditProfile:AppCompatActivity (){
private val IMAGE = 100
var bitmap: Bitmap? = null
var profile:ImageView?=null
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.editprofile)
var mActionBarToolbar = findViewById<androidx.appcompat.widget.Toolbar>(R.id.toolbartable);
setSupportActionBar(mActionBarToolbar);
// add back arrow to toolbar
if (getSupportActionBar() != null){
getSupportActionBar()?.setDisplayHomeAsUpEnabled(true);
getSupportActionBar()?.setDisplayShowHomeEnabled(true);
getSupportActionBar()?.setHomeAsUpIndicator(R.drawable.ic_keyboard_arrow_left_black_24dp);
getSupportActionBar()?.setDisplayShowTitleEnabled(false);
//supportActionBar?.setTitle("Tables")
//    getSupportActionBar()?.setTitle((Html.fromHtml("<font color="#FFFFFF">" + getString(R.string.Myaccount) + "</font>")));
}
val myCalendar: Calendar = Calendar.getInstance()
val edittext1 = findViewById(R.id.dob) as EditText
val date =
OnDateSetListener { view, year, monthOfYear, dayOfMonth -> // TODO Auto-generated method stub
myCalendar.set(Calendar.YEAR, year)
myCalendar.set(Calendar.MONTH, monthOfYear)
myCalendar.set(Calendar.DAY_OF_MONTH, dayOfMonth)
val myFormat = "dd-MM-yyyy" //In which you need put here
val sdf = SimpleDateFormat(myFormat, Locale.US)
edittext1.setText(sdf.format(myCalendar.getTime()))      }
edittext1.setOnClickListener(object : View.OnClickListener {
override fun onClick(v: View?) {
// TODO Auto-generated method stub
DatePickerDialog(
this@EditProfile, date, myCalendar
.get(Calendar.YEAR), myCalendar.get(Calendar.MONTH),
myCalendar.get(Calendar.DAY_OF_MONTH)
).show()
}
})
val edit= edittext1.text
profile = findViewById<View>(R.id.profilepic) as ImageView

val token :String =SharedPrefManager.getInstance(applicationContext).user.access_token.toString()
RetrofitClient.instance.fetchUser(token)
.enqueue(object : Callback<My_account_base_response> {
override fun onFailure(call: Call<My_account_base_response>, t: Throwable) {
Log.d("res", "" + t)

}
override fun onResponse(
call: Call<My_account_base_response>,
response: Response<My_account_base_response>
) {
var res = response
if (res.body()?.status==200) {
//  val retro: List<Myaccount_data> = response.body().getData()
val retro: Myaccount_data = res.body()!!.data
val retro1 : User_data =retro.user_data
Glide.with(applicationContext).load(retro1.profile_pic)
.diskCacheStrategy(DiskCacheStrategy.ALL)
.placeholder(R.drawable.ic_launcher_foreground)
.into(profile!!)
//image.setImageResource(retro1.profile_pic)
}
else{
try {
val jObjError =
JSONObject(response.errorBody()!!.string())
Toast.makeText(
applicationContext,
jObjError.getString("user_msg"),
Toast.LENGTH_LONG
).show()
} catch (e: Exception) {
Toast.makeText(applicationContext, e.message, Toast.LENGTH_LONG).show()
Log.e("errorrr",e.message)
}
}
}
})


profile?.setOnClickListener(View.OnClickListener {
val intent = Intent()
intent.type = "image/*"
intent.action = Intent.ACTION_GET_CONTENT
startActivityForResult(intent, IMAGE)
})
editsubmit.setOnClickListener {
val first_name = firstname.text.toString().trim()
val last_name = lastname.text.toString().trim()
val email = emailregister.text.toString().trim()
val phone = phoneno.text.toString().trim()
val profile ="data:image/png;base64,"+convertToString()!!
val token: String =
SharedPrefManager.getInstance(
applicationContext
).user.access_token.toString()
val first_name1 =
RequestBody.create(MediaType.parse("text/plain"), first_name)
val last_name1 =
RequestBody.create(MediaType.parse("text/plain"), last_name)
val email1 =
RequestBody.create(MediaType.parse("text/plain"), email)
val dob1 =
RequestBody.create(MediaType.parse("text/plain"), edittext1.text.toString())
val phone_no1 =
RequestBody.create(MediaType.parse("text/plain"), phone)
val profile_pic = RequestBody.create(
MediaType.parse("text/plain"),
profile
)

val intent = Intent(this, HomeActivity::class.java)
intent.putExtra("BitmapImage", profile)
val map: MutableMap<String, RequestBody> = HashMap()
map.put("first_name", first_name1);
map.put("last_name", last_name1);
map.put("email", email1);
map.put("dob", dob1);
map.put("phone_no", phone_no1);
map.put("profile_pic", profile_pic);
val requestFile: RequestBody =
RequestBody.create(MediaType.parse("image/jpeg"), profile)
val body: MultipartBody.Part =
MultipartBody.Part.createFormData("image", "image.jpg", requestFile)
RetrofitClient.instance.useredit(token,map)
.enqueue(object : Callback<LoginResponse> {
override fun onFailure(call: Call<LoginResponse>, t: Throwable) {
Log.d("res", "" + t)
}
override fun onResponse(
call: Call<LoginResponse>,
response: Response<LoginResponse>
) {
var res = response
Log.d("response check ", "" + response.body()?.status.toString())
if (res.body()?.status==200) {
Toast.makeText(
applicationContext,
res.body()?.message,
Toast.LENGTH_LONG
).show()
Log.d("kjsfgxhufb",response.body()?.status.toString())
}
else
{
try {
val jObjError =
JSONObject(response.errorBody()!!.string())
Toast.makeText(
applicationContext,
jObjError.getString("message")+jObjError.getString("user_msg"),
Toast.LENGTH_LONG
).show()
} catch (e: Exception) {
Toast.makeText(applicationContext, e.message, Toast.LENGTH_LONG).show()
Log.e("errorrr",e.message)
}
}
}
})
}
}
private fun convertToString(): String? {
val byteArrayOutputStream = ByteArrayOutputStream()
bitmap?.compress(Bitmap.CompressFormat.PNG, 100, byteArrayOutputStream)
bitmap?.compress(Bitmap.CompressFormat.JPEG, 100, byteArrayOutputStream)
val imgByte: ByteArray = byteArrayOutputStream.toByteArray()
return android.util.Base64.encodeToString(imgByte, android.util.Base64.NO_WRAP )
}
override fun onActivityResult(
requestCode: Int,
resultCode: Int,
data: Intent?
) {
super.onActivityResult(requestCode, resultCode, data)
if (requestCode == IMAGE && resultCode == Activity.RESULT_OK && data != null) {
val path: Uri? = data.data
try {
bitmap = MediaStore.Images.Media.getBitmap(contentResolver, path)
profile?.setImageBitmap(bitmap)
} catch (e: IOException) {
e.printStackTrace()
}
}
}
override fun onOptionsItemSelected(item: MenuItem): Boolean {
return when (item.itemId) {
android.R.id.home -> {
NavUtils.navigateUpFromSameTask(this)
true
}
else -> super.onOptionsItemSelected(item)
}
}
}

真的需要帮助提前感谢

Answer 1

使其易于使用它有文件选择器，所以你不必实现它。

// start picker to get image for cropping and then use the image in cropping activity
CropImage.activity()
.setGuidelines(CropImageView.Guidelines.ON)
.start(this); 

https://github.com/ArthurHub/Android-Image-Cropper