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Maskieren (Zuschneiden) des Bildes im Rahmen

Ich habe eine reichhaltige UI-Anwendung, in der ich ein Bild mit einer komplexen Form wie dieser zeigen möchte

enter image description here

Nun möchte ich mein Bild gemäß dem Maskenbild zuschneiden. Tatsächlich wird das Bild dynamisch und kann von der Kamera oder Galerie (quadratische oder rechteckige Form) importiert werden, und ich möchte das Bild um wie oben in meinen Layoutrahmen zu passen

Ich frage mich nur, wie ich das erreichen kann. Jede Idee/jeder Hinweis ist willkommen

Hintergrundrahmen
enter image description here
Maske
enter image description here

Wie dieses

81
Azhar Shaikh

Endlich die Lösung beim Ändern des Maskenbildes und Verwenden von Xfermode mit Bitmap

Maske

enter image description here

 ImageView mImageView= (ImageView)findViewById(R.id.imageview_id);
 Bitmap original = BitmapFactory.decodeResource(getResources(),R.drawable.content_image);
 Bitmap mask = BitmapFactory.decodeResource(getResources(),R.drawable.mask);
 Bitmap result = Bitmap.createBitmap(mask.getWidth(), mask.getHeight(), Config.ARGB_8888);
 Canvas mCanvas = new Canvas(result);
 Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
 Paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_IN));
 mCanvas.drawBitmap(original, 0, 0, null);
 mCanvas.drawBitmap(mask, 0, 0, Paint);
 Paint.setXfermode(null);
 mImageView.setImageBitmap(result);
 mImageView.setScaleType(ScaleType.CENTER);
 mImageView.setBackgroundResource(R.drawable.background_frame);

siehe Ausgabe

enter image description here

Quelle kann gefunden werden hier

141
Azhar Shaikh

Es ist noch einfacher, die Picasso-Bibliothek und eine benutzerdefinierte Transformation zu verwenden:

MaskTransformation.Java:

 * ORIGINAL:
 * Copyright (C) 2015 Wasabeef
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.Apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package me.monori.example.utilities;

import Android.content.Context;
import Android.graphics.Bitmap;
import Android.graphics.Canvas;
import Android.graphics.Paint;
import Android.graphics.PorterDuff;
import Android.graphics.PorterDuffXfermode;
import Android.graphics.drawable.Drawable;
import Android.support.v4.content.ContextCompat;

import com.squareup.picasso.Transformation;

public class MaskTransformation implements Transformation {

    private static Paint mMaskingPaint = new Paint();
    private Context mContext;
    private int mMaskId;

    static {
        mMaskingPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
    }

    /**
     * @param maskId If you change the mask file, please also rename the mask file, or Glide will get
     * the cache with the old mask. Because getId() return the same values if using the
     * same make file name. If you have a good idea please tell us, thanks.
     */
    public MaskTransformation(Context context, int maskId) {
        mContext = context.getApplicationContext();
        mMaskId = maskId;
    }

    @Override public Bitmap transform(Bitmap source) {
        int width = source.getWidth();
        int height = source.getHeight();

        Bitmap result = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);

        Drawable mask = getMaskDrawable(mContext, mMaskId);

        Canvas canvas = new Canvas(result);
        mask.setBounds(0, 0, width, height);
        mask.draw(canvas);
        canvas.drawBitmap(source, 0, 0, mMaskingPaint);

        source.recycle();

        return result;
    }

    @Override public String key() {
        return "MaskTransformation(maskId=" + mContext.getResources().getResourceEntryName(mMaskId)
                + ")";
    }

    public Drawable getMaskDrawable(Context context, int maskId) {
        Drawable drawable = ContextCompat.getDrawable(context, maskId);

        if (drawable == null) {
            throw new IllegalArgumentException("maskId is invalid");
        }

        return drawable;
    }
}

Dann definieren Sie es einfach in einer Zeile:

Picasso.with(context)
                    .load(imageUrl)
                    .transform(new MaskTransformation(context, _maskDrawableId))
                    .placeholder(R.drawable.drawableId)
                    .into(imageView);
5
captainserious
     final ImageView mImageView = (ImageView) findViewById(R.id.image);
     mImageView.setBackgroundResource(R.drawable.user_outer_circle_icon);


     mImageView.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {


            if(b){
                 mImageView.setBackgroundResource(R.drawable.profil_circle);

                 Bitmap original = BitmapFactory.decodeResource(getResources(),R.drawable.doge);

                 Bitmap mask = BitmapFactory.decodeResource(getResources(),R.drawable.mask_white);

                 Bitmap mask1 = BitmapFactory.decodeResource(getResources(),R.drawable.pencil_bg);

                 original = Bitmap.createScaledBitmap(original, mask.getWidth(),mask.getHeight(), true);

                 Bitmap result = Bitmap.createBitmap(mask.getWidth(), mask.getHeight(),Config.ARGB_8888);
                 Canvas mCanvas = new Canvas(result);
                 Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
                 Paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_IN));
                 mCanvas.drawBitmap(original, 0, 0, null);
                 mCanvas.drawBitmap(mask, 0, 0, Paint);
                 mCanvas.drawBitmap(mask1, 0, 0, null);
                 Bitmap mask2 = BitmapFactory.decodeResource(getResources(), R.drawable.ic_pencil);
                 mCanvas.drawBitmap(mask2, 0, 0, null);
                 mImageView.setImageBitmap(result);
                 mImageView.setScaleType(ScaleType.FIT_XY);

                 b=false;
             }else{
                 ImageView mImageView = (ImageView) findViewById(R.id.image);
                 Bitmap original = BitmapFactory.decodeResource(getResources(),
                 R.drawable.doge);

                 Bitmap mask = BitmapFactory.decodeResource(getResources(),
                 R.drawable.mask_white);

                 original = Bitmap.createScaledBitmap(original, mask.getWidth(),
                 mask.getHeight(), true);

                 Bitmap result = Bitmap.createBitmap(mask.getWidth(), mask.getHeight(),
                 Config.ARGB_8888);
                 Canvas mCanvas = new Canvas(result);
                 Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
                 Paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_IN));
                 mCanvas.drawBitmap(original, 0, 0, null);
                 mCanvas.drawBitmap(mask, 0, 0, Paint);
                 Paint.setXfermode(null);
                 mImageView.setImageBitmap(result);
                 mImageView.setScaleType(ScaleType.FIT_XY);
                // mImageView.setBackgroundResource(R.drawable.user_outer_circle_icon);
                 b= true;


             }


        }
    });
1
Prashant