آموزش برش عکس در اندروید

سلام دوستان منبع فارسی برای برش عکس ندیدم گفتم شاید کسی خواست استفاده بکنه بدون مقدمه میرم سر اصل مطلب .
ابتدا به بخش Project level gradle رفته و کد زیر را اضافه کنید.

maven { url "https://jitpack.io" }

1	maven { url "https://jitpack.io" }

سپس در بخش app level gradle خود کد زیر را اضافه کنید

compile 'com.theartofdev.edmodo:android-image-cropper:2.3.+'

1	compile 'com.theartofdev.edmodo:android-image-cropper:2.3.+'

بعد از انجام تغییرات بالا روی دکمه sync کلیک کنید (در صورت sync نشدن این مطلب را مطالعه کنید)
خب در بالا ما از منبع jitpack.io یکی از کتاب خانه هایش را برای برش عکس به کلاس های جاوا خود اضافه می کنیم یا به اصطلاحا متدها را دانلود می کنیم.
فایل activity_main.xml را همانند زیر تکمیل می کنیم

<RelativeLayout
 xmlns:android="http://schemas.android.com/apk/res/android"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:orientation="vertical"
 android:background="@android:color/black">
<TextView
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:text="Tap on the image below to change your profile picture"
 android:textColor="@android:color/white"
 android:textSize="20dp"
 android:id="@+id/textView" />
 <FrameLayout
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:layout_below="@+id/quick_start_cropped_image"
 android:background="@android:color/white"
 >
 <LinearLayout
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:orientation="vertical">
 <TextView
 android:layout_width="wrap_content"
 android:textColor="@android:color/black"
 android:layout_height="wrap_content"
 android:text="Name: Manish Kumar"
 android:textSize="30dp"
 android:layout_gravity="center"
 />
 <TextView
 android:textColor="@android:color/black"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:text="Email: manishh776@gmail.com"
 android:textSize="25dp"
 android:layout_gravity="center"
 />
 <TextView
 android:textColor="@android:color/black"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:text="MobileNo:1234567890"
 android:textSize="25dp"
 android:layout_gravity="center"
 />
 </LinearLayout>
</FrameLayout>
 <ImageButton
 android:id="@+id/quick_start_cropped_image"
 android:layout_width="200dp"
 android:layout_height="200dp"
 android:src="@drawable/profile"
 android:layout_marginTop="39dp"
 android:layout_below="@+id/textView"
 android:layout_centerHorizontal="true" />
</RelativeLayout>

<RelativeLayout

xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="vertical"

android:background="@android:color/black">

<TextView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="Tap on the image below to change your profile picture"

android:textColor="@android:color/white"

android:textSize="20dp"

android:id="@+id/textView" />

<FrameLayout

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:layout_below="@+id/quick_start_cropped_image"

android:background="@android:color/white"

<LinearLayout

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:orientation="vertical">

<TextView

android:layout_width="wrap_content"

android:textColor="@android:color/black"

android:layout_height="wrap_content"

android:text="Name: Manish Kumar"

android:textSize="30dp"

android:layout_gravity="center"

<TextView

android:textColor="@android:color/black"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="Email: manishh776@gmail.com"

android:textSize="25dp"

android:layout_gravity="center"

<TextView

android:textColor="@android:color/black"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="MobileNo:1234567890"

android:textSize="25dp"

android:layout_gravity="center"

</LinearLayout>

</FrameLayout>

<ImageButton

android:id="@+id/quick_start_cropped_image"

android:layout_width="200dp"

android:layout_height="200dp"

android:src="@drawable/profile"

android:layout_marginTop="39dp"

android:layout_below="@+id/textView"

android:layout_centerHorizontal="true" />

</RelativeLayout>

و فایل MainActivity.java را همانند زیر تکمیل می کنیم.

package chutka.bitman.com.bestimagecropperever;
import android.Manifest;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.Toast;
import com.theartofdev.edmodo.cropper.CropImage;
import com.theartofdev.edmodo.cropper.CropImageView;
public class MainActivity extends AppCompatActivity {
    ImageButton imageButton;
    /**
     * Persist URI image to crop URI if specific permissions are required
     */
    private Uri mCropImageUri;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        imageButton = (ImageButton) findViewById(R.id.quick_start_cropped_image);
        imageButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                onSelectImageClick(v);
            }
        });
    }
    /**
     * Start pick image activity with chooser.
     */
    public void onSelectImageClick(View view) {
        CropImage.startPickImageActivity(this);
    }
    @Override
    @SuppressLint("NewApi")
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        // handle result of pick image chooser
        if (requestCode == CropImage.PICK_IMAGE_CHOOSER_REQUEST_CODE && resultCode == Activity.RESULT_OK) {
            Uri imageUri = CropImage.getPickImageResultUri(this, data);
            // For API >= 23 we need to check specifically that we have permissions to read external storage.
            if (CropImage.isReadExternalStoragePermissionsRequired(this, imageUri)) {
                // request permissions and handle the result in onRequestPermissionsResult()
                mCropImageUri = imageUri;
                requestPermissions(new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, 0);
            } else {
                // no permissions required or already grunted, can start crop image activity
                startCropImageActivity(imageUri);
            }
        }
        // handle result of CropImageActivity
        if (requestCode == CropImage.CROP_IMAGE_ACTIVITY_REQUEST_CODE) {
            CropImage.ActivityResult result = CropImage.getActivityResult(data);
            if (resultCode == RESULT_OK) {
                ((ImageButton) findViewById(R.id.quick_start_cropped_image)).setImageURI(result.getUri());
                Toast.makeText(this, "Cropping successful, Sample: " + result.getSampleSize(), Toast.LENGTH_LONG).show();
            } else if (resultCode == CropImage.CROP_IMAGE_ACTIVITY_RESULT_ERROR_CODE) {
                Toast.makeText(this, "Cropping failed: " + result.getError(), Toast.LENGTH_LONG).show();
            }
        }
    }
    @Override
    public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
        if (mCropImageUri != null && grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
            // required permissions granted, start crop image activity
            startCropImageActivity(mCropImageUri);
        } else {
            Toast.makeText(this, "Cancelling, required permissions are not granted", Toast.LENGTH_LONG).show();
        }
    }
    /**
     * Start crop image activity for the given image.
     */
    private void startCropImageActivity(Uri imageUri) {
        CropImage.activity(imageUri)
                .setGuidelines(CropImageView.Guidelines.ON)
                .setMultiTouchEnabled(true)
                .start(this);
    }
}

package chutka.bitman.com.bestimagecropperever;

import android.Manifest;

import android.annotation.SuppressLint;

import android.app.Activity;

import android.content.Intent;

import android.content.pm.PackageManager;

import android.net.Uri;

import android.os.Bundle;

import android.support.v7.app.AppCompatActivity;

import android.view.View;

import android.widget.ImageButton;

import android.widget.ImageView;

import android.widget.Toast;

import com.theartofdev.edmodo.cropper.CropImage;

import com.theartofdev.edmodo.cropper.CropImageView;

public class MainActivity extends AppCompatActivity {

ImageButton imageButton;

/**

* Persist URI image to crop URI if specific permissions are required

private Uri mCropImageUri;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

imageButton = (ImageButton) findViewById(R.id.quick_start_cropped_image);

imageButton.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

onSelectImageClick(v);

}

});

}

/**

* Start pick image activity with chooser.

public void onSelectImageClick(View view) {

CropImage.startPickImageActivity(this);

}

@Override

@SuppressLint("NewApi")

protected void onActivityResult(int requestCode, int resultCode, Intent data) {

// handle result of pick image chooser

if (requestCode == CropImage.PICK_IMAGE_CHOOSER_REQUEST_CODE && resultCode == Activity.RESULT_OK) {

Uri imageUri = CropImage.getPickImageResultUri(this, data);

// For API >= 23 we need to check specifically that we have permissions to read external storage.

if (CropImage.isReadExternalStoragePermissionsRequired(this, imageUri)) {

// request permissions and handle the result in onRequestPermissionsResult()

mCropImageUri = imageUri;

requestPermissions(new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, 0);

} else {

// no permissions required or already grunted, can start crop image activity

startCropImageActivity(imageUri);

}

// handle result of CropImageActivity

if (requestCode == CropImage.CROP_IMAGE_ACTIVITY_REQUEST_CODE) {

CropImage.ActivityResult result = CropImage.getActivityResult(data);

if (resultCode == RESULT_OK) {

((ImageButton) findViewById(R.id.quick_start_cropped_image)).setImageURI(result.getUri());

Toast.makeText(this, "Cropping successful, Sample: " + result.getSampleSize(), Toast.LENGTH_LONG).show();

} else if (resultCode == CropImage.CROP_IMAGE_ACTIVITY_RESULT_ERROR_CODE) {

Toast.makeText(this, "Cropping failed: " + result.getError(), Toast.LENGTH_LONG).show();

}

@Override

public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {

if (mCropImageUri != null && grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {

// required permissions granted, start crop image activity

startCropImageActivity(mCropImageUri);

} else {

Toast.makeText(this, "Cancelling, required permissions are not granted", Toast.LENGTH_LONG).show();

}

/**

* Start crop image activity for the given image.

private void startCropImageActivity(Uri imageUri) {

CropImage.activity(imageUri)

.setGuidelines(CropImageView.Guidelines.ON)

.setMultiTouchEnabled(true)

.start(this);

}

ما به یک عکس نیاز داریم که درپایین برای شما قرار خواهیم داد.این عکس را ذخیره کرده و در فولدر drawable خود قرار دهید.

خب برنامه را ران کرده و کرده و روی دکمه کلیک کنید تا عکس را crop کنید ممنون که تا آخر با ما بودید.