Android-分享收集到的UCrop工具类

图片来源网络，入侵必删

在日常的Android开发当中，我们图片裁剪的时候，大部分情况，我们都会使用UCrop开源库来做裁剪。这里分享一个从网上收集到的UCrop相关的工具类，我个人感觉提高了开发效率。

工具类代码

import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.Color;
import android.net.Uri;
import android.os.Environment;
import android.provider.MediaStore;
import android.support.annotation.ColorInt;
import android.util.Log;
import android.widget.Toast;

import com.yalantis.ucrop.UCrop;
import com.yalantis.ucrop.UCropActivity;

import java.io.File;

/**
 * https://github.com/glassLake/CropUtils
 *
 * compile 'com.yalantis:ucrop:2.2.0
 *
 * Created by Administrator on 2016/9/23 0004.
 */
public class PicCrop {
    public static final int REQUEST_SELECT_PICTURE = 0x01;
    private static final int REQUEST_CAMERA = 0x03;
    private static final String EXTRA_VIEW_TAG = "viewTag";//同一个页面多个地方需要选择图片时，config里tag字段用于标识

    public static final  int TYPE_AVATAR  = 1;
    public static final  int TYPE_NORMAL  = 2;

    public static Uri getUri() {
        return uri;
    }

    private static Uri uri;

    private static CropConfig  config = new CropConfig();



    private static Uri buildUri() {
        File cacheFolder = new File(Environment.getExternalStorageDirectory() + File.separator + "crop");
        if (!cacheFolder.exists()) {
            try {
                boolean result = cacheFolder.mkdir();
                Log.d("uri", "generateUri " + cacheFolder + " result: " + (result ? "succeeded" : "failed"));
            } catch (Exception e) {
                Log.e("uri", "generateUri failed: " + cacheFolder, e);
            }
        }
        String name = String.format("imagecrop-%d.jpg", System.currentTimeMillis());
        uri = Uri
                .fromFile(cacheFolder)
                .buildUpon()
                .appendPath(name)
                .build();
        Log.e("crop",uri.toString());

        return uri;

    }

    public static void cropAvatarFromGallery(Activity context){
        cropFromGallery(context,null,TYPE_AVATAR);
    }

    public static void cropAvatarFromCamera(Activity context){
        cropFromCamera(context,null,TYPE_AVATAR);
    }



    public static void cropFromGallery(Activity context,CropConfig config,int type) {
        if (config != null){
            PicCrop.config = config;//怎么避免前后两次config
        }else {
            PicCrop.config = new CropConfig();
        }

        setType(type);

        Intent intent = new Intent();
        intent.setType("image/*");
        intent.setAction(Intent.ACTION_GET_CONTENT);
        intent.addCategory(Intent.CATEGORY_OPENABLE);
        context.startActivityForResult(Intent.createChooser(intent, "选择图片"), REQUEST_SELECT_PICTURE);
    }

    private static void setType(int type) {
        if (type == TYPE_AVATAR){
            config.isOval = true;
            config.aspectRatioX = 1;
            config.aspectRatioY = 1;
            config.hideBottomControls = true;
            config.showGridLine = false;
            config.showOutLine = false;
            config.maxHeight = 400;
            config.maxWidth = 400;
        }else  if (type == TYPE_NORMAL){//什么都不用做


        }else {

        }
    }

    public static void cropFromCamera(Activity context,CropConfig config,int type) {
        if (config != null){
            PicCrop.config = config;
        }else {
            PicCrop.config = new CropConfig();
        }

        setType(type);

        Uri mDestinationUri = buildUri();
        Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE)
                .putExtra(MediaStore.EXTRA_OUTPUT, mDestinationUri);
        context.startActivityForResult(intent, REQUEST_CAMERA);
    }

    public static void cropFromGallery(Activity context) {

        cropFromGallery(context,null,0);
    }

    public static void cropFromCamera(Activity context) {
        cropFromCamera(context,null,0);
    }

    /**
     * 注意，调用时data为null的判断
     *
     * @param context
     * @param cropHandler
     * @param requestCode
     * @param resultCode
     * @param data
     */
    public static void onActivityResult( int requestCode, int resultCode, Intent data,Activity context, CropHandler cropHandler) {

        if (resultCode == Activity.RESULT_OK) {
            if (requestCode == REQUEST_SELECT_PICTURE) {//第一次，选择图片后返回
                final Uri selectedUri = data.getData();
                if (selectedUri != null) {
                    startCropActivity(context, data.getData());
                } else {
                    Toast.makeText(context, "Cannot retrieve selected image", Toast.LENGTH_SHORT).show();
                }
            } else if (requestCode == UCrop.REQUEST_CROP) {//第二次返回，图片已经剪切好

                Uri finalUri = UCrop.getOutput(data);
                cropHandler.handleCropResult(finalUri,config.tag);

            } else if (requestCode == REQUEST_CAMERA) {//第一次，拍照后返回，因为设置了MediaStore.EXTRA_OUTPUT，所以data为null，数据直接就在uri中
                startCropActivity(context, uri);
            }
        }
        if (resultCode == UCrop.RESULT_ERROR) {
            cropHandler.handleCropError(data);
        }

    }


    private static void startCropActivity(Activity context, Uri sourceUri) {
        Uri mDestinationUri = buildUri();
        UCrop uCrop = UCrop.of(sourceUri, mDestinationUri);

        uCrop.withAspectRatio(config.aspectRatioX,config.aspectRatioY);
        uCrop.withMaxResultSize(config.maxWidth,config.maxHeight);

        UCrop.Options options = new UCrop.Options();
        options.setCompressionFormat(Bitmap.CompressFormat.JPEG);
        options.setAllowedGestures(UCropActivity.SCALE,UCropActivity.NONE,UCropActivity.NONE);
        options.setCompressionQuality(config.quality);
       // options.setOvalDimmedLayer(config.isOval);
        options.setCircleDimmedLayer(config.isOval);
        options.setShowCropGrid(config.showGridLine);
        options.setHideBottomControls(config.hideBottomControls);
        options.setShowCropFrame(config.showOutLine);
         options.setToolbarColor(config.toolbarColor);
        options.setStatusBarColor(config.statusBarColor);

        uCrop.withOptions(options);

        uCrop.start(context);
    }



    public static class CropConfig{
        public int aspectRatioX = 1;
        public int aspectRatioY = 1;
        public int maxWidth = 1080;
        public int maxHeight = 1920;

        //options
        public int  tag ;
        public  boolean isOval = false;//是否为椭圆
        public int quality = 80;

        public boolean hideBottomControls = true;//底部操作条
        public boolean showGridLine = true;//内部网格
        public boolean showOutLine = true;//最外面的矩形线

        public @ColorInt int toolbarColor =  Color.BLUE;
        public @ColorInt int statusBarColor =  Color.BLUE;


        public void setAspectRation(int x,int y){
            this.aspectRatioX = x;
            this.aspectRatioY = y;
        }

        public void setMaxSize(int width,int height){
            this.maxHeight = height;
            this.maxWidth = width;
        }

    }



    public interface CropHandler {
         void handleCropResult(Uri uri, int tag);
        void handleCropError(Intent data);
    }
}

这是整个工具类的代码，需要的小伙伴可以直接复制到项目当中使用。封装方法说明请看下面。

打开相机

public static void cropFromCamera(Activity context)

打开相册

public static void cropFromGallery(Activity context)

从图库选择头像

public static void cropAvatarFromGallery(Activity context)

拍照裁剪头像

public static void cropAvatarFromCamera(Activity context)

自定义方法

public static void cropFromGallery(Activity context,CropConfig config,int type)
public static void cropFromCamera(Activity context,CropConfig config,int type)

选择回调

public static void onActivityResult( int requestCode, int resultCode, Intent data,Activity context, CropHandler cropHandler)

选调接口

public interface CropHandler {
   void handleCropResult(Uri uri,int tag);
   void handleCropError(Intent data);
}

UCrop一定要导入

implementation 'com.github.yalantis:ucrop:2.2.6'

清单注册裁剪界面

<activity
    android:name="com.yalantis.ucrop.UCropActivity"
    android:screenOrientation="portrait"
    android:theme="@style/Theme.AppCompat.Light.NoActionBar"/>

混淆代码

-dontwarn com.yalantis.ucrop**
-keep class com.yalantis.ucrop** { *; }
-keep interface com.yalantis.ucrop** { *; }