Android 图片合成：添加蒙板效果 不规则相框 透明度渐变效果的实现
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Android 图片合成：添加蒙板效果 不规则相框 透明度渐变效果的实现
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暫時還未有時間開發這效果，所以先貼出來。 package?com.example.androiddemo;?? ?? ?? import?android.os.Bundle;?? import?android.os.Environment;?? import?android.app.Activity;?? import?android.graphics.Bitmap;?? import?android.graphics.BitmapFactory;?? import?android.graphics.Canvas;?? import?android.util.Log;?? import?android.view.View;?? import?android.view.View.OnClickListener;?? import?android.widget.Button;?? import?android.widget.ImageView;?? ?? public?class?MainActivity?extends?Activity?{?? ?? ????private?static?final?String?TAG?=?"liuzw";?? ?????? ????private?ImageView?picBGView;?? ????private?ImageView?pictureView;?? ????private?ImageView?maskView;?? ????private?ImageView?frameView;?? ????private?ImageView?resultView;?? ????private?Button?startProcess;?? ????private?Bitmap?picBitmap;?? ????private?Bitmap?maskBitmap;?? ????private?Bitmap?frameBitmap;?? ????private?Bitmap?resultBitmap;?? ????private?Bitmap?fengjingBitmap;?? ????private?Bitmap?composedBitmap;?? ?????? ????private?final?int?WITHOUT?=?-1;?? ????private?static?final?int?FRAME?=?0;?? ????private?static?final?int?MASK?=?1;?? ?????? //??private?int[]?resIds?=?new?int[]{???????//斜框鋸齒?? //??????????R.drawable.pip_6_frame,?? //??????????R.drawable.pip_6_frame_mask,?? //??};?? ?????? //??private?int[]?resIds?=?new?int[]{???????//膠條?? //??????????R.drawable.pip_1_frame,?? //??????????R.drawable.pip_1_frame_mask,?? //??};?? ?????? ????private?int[]?resIds?=?new?int[]{???????//漸變?? ????????????WITHOUT,?? ????????????R.drawable.pip_2_frame_mask,?? ????};?? ?????? //??private?int[]?resIds?=?new?int[]{???????//心形?? //??????????R.drawable.pip_3_frame,?? //??????????R.drawable.pip_3_frame_mask,?? //??};?? ?????? ????@Override?? ????protected?void?onCreate(Bundle?savedInstanceState)?{?? ????????super.onCreate(savedInstanceState);?? ????????setContentView(R.layout.activity_main);?? ?????????? ????????picBGView?=?(ImageView)?findViewById(R.id.pic_bg);?? ????????picBGView.setImageResource(R.drawable.fengjing);?? ????????pictureView?=?(ImageView)?findViewById(R.id.pic);?? ????????pictureView.setImageResource(R.drawable.pip_test);?? ????????maskView?=?(ImageView)?findViewById(R.id.mask);?? ????????maskView.setImageResource(resIds[MASK]);?? ????????frameView?=?(ImageView)?findViewById(R.id.frame);?? ????????frameView.setImageResource(resIds[FRAME]);?? ????????startProcess?=?(Button)?findViewById(R.id.btnStart);?? ????????startProcess.setOnClickListener(mListener);?? ????????resultView?=?(ImageView)?findViewById(R.id.showResult);?? ?????????? ????}?? ?????? ????/**? ?????*?獲得前置照片? ?????*/?? ????private?void?getFrontPicture(){?? ????????//蒙板的Bitmap?? ????????if(maskBitmap?==?null?||?maskBitmap.isRecycled()?&&?resIds[MASK]?!=?WITHOUT){?? ????????????maskBitmap?=?BitmapFactory.decodeResource(this.getResources(),?resIds[MASK]);?? ????????}?? ????????if(maskBitmap?==?null)?return;?? ?????????? ????????//前置的原圖，并將其縮放到跟蒙板大小一直?? ????????if(picBitmap?==?null?||?picBitmap.isRecycled()){?? ????????????picBitmap?=?BitmapFactory.decodeResource(this.getResources(),?R.drawable.pip_test);?? ????????????picBitmap?=?Bitmap.createScaledBitmap(picBitmap,?maskBitmap.getWidth(),?maskBitmap.getHeight(),?false);?? ????????}?? ?????????? ????????//相框的Bitmap?? ????????if(frameBitmap?==?null?||?frameBitmap.isRecycled()?&&?resIds[FRAME]?!=?WITHOUT){?? ????????????frameBitmap?=?BitmapFactory.decodeResource(this.getResources(),?resIds[FRAME]);?? ????????}?? ?????????? ????????int?w?=?maskBitmap.getWidth();?? ????????int?h?=?maskBitmap.getHeight();?? ?????????? ????????int?edgeColor?=?maskBitmap.getPixel(1,?1);?? ????????int?centerColor?=?maskBitmap.getPixel(w/2,?h/2);?? ????????Log.d(TAG,?"edgeColor?=?"?+?Integer.toHexString(edgeColor)?+?",?centerColor?=?"?+?Integer.toHexString(centerColor));?? ?????????? ????????if(resultBitmap?==?null){?? ????????????resultBitmap?=?Bitmap.createBitmap(w,?h,?Bitmap.Config.ARGB_8888);?? ????????}?? ?????????? ????????//這是背景的風景圖?? ????????if(fengjingBitmap?==?null){?? ????????????fengjingBitmap?=?BitmapFactory.decodeResource(getResources(),?R.drawable.fengjing);?? ????????}?? ?????????? ????????//前置相片添加蒙板效果?? ????????int[]?picPixels?=?new?int[w*h];?? ????????int[]?maskPixels?=?new?int[w*h];?? ????????picBitmap.getPixels(picPixels,?0,?w,?0,?0,?w,?h);?? ????????maskBitmap.getPixels(maskPixels,?0,?w,?0,?0,?w,?h);?? ????????for(int?i?=?0;?i?<?maskPixels.length;?i++){?? ????????????if(maskPixels[i]?==?0xff000000){?? ????????????????picPixels[i]?=?0;?? ????????????}else?if(maskPixels[i]?==?0){?? ????????????????//donothing?? ????????????}else{?? ????????????????//把mask的a通道應用與picBitmap?? ????????????????maskPixels[i]?&=?0xff000000;?? ????????????????maskPixels[i]?=?0xff000000?-?maskPixels[i];??? ????????????????picPixels[i]?&=?0x00ffffff;?? ????????????????picPixels[i]?|=?maskPixels[i];?? ????????????}?? ????????}?? ?????????? ????????//生成前置圖片添加蒙板后的bitmap:resultBitmap?? ????????resultBitmap.setPixels(picPixels,?0,?w,?0,?0,?w,?h);?? ????}?? ?????? ????/**? ?????*?圖片合成? ?????*/?? ????private?void?compose(){?? ????????if(fengjingBitmap?==?null?||?fengjingBitmap.isRecycled()){?? ????????????Log.e(TAG,?"compose?ERROR:?fengjingBitmap?is?not?valuable");?? ????????????return;?? ????????}?? ????????composedBitmap?=?Bitmap.createBitmap(fengjingBitmap.getWidth(),?fengjingBitmap.getHeight(),?Bitmap.Config.ARGB_8888);?? ????????if(composedBitmap?==?null?||?composedBitmap.isRecycled()){?? ????????????Log.e(TAG,?"compose?ERROR:?composedBitmap?is?not?valuable");?? ????????????return;?? ????????}?? ????????if(resultBitmap?==?null?||?resultBitmap.isRecycled()){?? ????????????Log.e(TAG,?"compose?ERROR:?resultBitmap?is?not?valuable");?? ????????????return;?? ????????}?? ????????Canvas?cv?=?new?Canvas(composedBitmap);?? ????????cv.drawBitmap(fengjingBitmap,?0,?0,?null);?? ????????cv.drawBitmap(resultBitmap,?100,?100,?null);?? ?????????? ????????if(frameBitmap?!=?null?&&?!frameBitmap.isRecycled()){?? ????????????cv.drawBitmap(frameBitmap,?100,?100,?null);?? ????????}?? ?????????? ????????cv.save(Canvas.ALL_SAVE_FLAG);?? ????????cv.restore();?? ????????resultView.setImageBitmap(composedBitmap);?? ????}?? ?????? ????@Override?? ????protected?void?onDestroy()?{?? ????????//?TODO?Auto-generated?method?stub?? ????????super.onDestroy();?? ????????//釋放資源?? ????????resultView.setImageBitmap(null);?? ????????if(picBitmap?!=?null?&&?!picBitmap.isRecycled()){?? ????????????picBitmap.recycle();?? ????????????picBitmap?=?null;?? ????????}?? ????????if(maskBitmap?!=?null?&&?!maskBitmap.isRecycled()){?? ????????????maskBitmap.recycle();?? ????????????maskBitmap?=?null;?? ????????}?? ????????if(frameBitmap?!=?null?&&?!frameBitmap.isRecycled()){?? ????????????frameBitmap.recycle();?? ????????????frameBitmap?=?null;?? ????????}?? ????????if(resultBitmap?!=?null?&&?!resultBitmap.isRecycled()){?? ????????????resultBitmap.recycle();?? ????????????resultBitmap?=?null;?? ????????}?? ????????if(fengjingBitmap?!=?null?&&?!fengjingBitmap.isRecycled()){?? ????????????fengjingBitmap.recycle();?? ????????????fengjingBitmap?=?null;?? ????????}?? ????????if(composedBitmap?!=?null?&&?!composedBitmap.isRecycled()){?? ????????????composedBitmap.recycle();?? ????????????composedBitmap?=?null;?? ????????}?? ????}?? ?????? ????private?OnClickListener?mListener?=?new?OnClickListener(){?? ?? ????????@Override?? ????????public?void?onClick(View?v)?{?? ????????????//?TODO?Auto-generated?method?stub?? ????????????switch(v.getId()){?? ????????????case?R.id.btnStart:?? ????????????????getFrontPicture();?? ????????????????compose();?? ????????????????break;?? ????????????}?? ????????}?? ?????????? ????};?? ?????? }??
為了完整和方便參考，把布局文件也貼一下，如下： [html]?view plaincopy <RelativeLayout?xmlns:android="http://schemas.android.com/apk/res/android"?? ????xmlns:tools="http://schemas.android.com/tools"?? ????android:layout_width="match_parent"?? ????android:layout_height="match_parent"?? ????android:background="#ffffffff"?? ????tools:context=".MainActivity"?>?? ?? ????<LinearLayout??? ????????android:id="@+id/views1"?? ????????android:layout_width="match_parent"?? ????????android:layout_height="150dip"?? ????????android:orientation="horizontal"?>?? ?????????? ?????????<ImageView??? ????????????android:id="@+id/pic_bg"?? ????????????android:layout_width="wrap_content"?? ????????????android:layout_height="wrap_content"?? ????????????android:layout_weight="1.0"?/>?? ??????????? ????????<ImageView??? ????????????android:id="@+id/pic"?? ????????????android:layout_width="wrap_content"?? ????????????android:layout_height="wrap_content"?? ????????????android:layout_weight="1.0"?/>?? ????</LinearLayout>?? ?????? ????<LinearLayout??? ????????android:id="@+id/views2"?? ????????android:layout_below="@+id/views1"?? ????????android:layout_width="match_parent"?? ????????android:layout_height="150dip"?? ????????android:orientation="horizontal"?>?? ?????????? ?????????? ????????<ImageView??? ????????????android:id="@+id/frame"?? ????????????android:layout_width="wrap_content"?? ????????????android:layout_height="wrap_content"?? ????????????android:layout_weight="1.0"?/>?? ?????????? ????????<ImageView??? ????????????android:id="@+id/mask"?? ????????????android:layout_width="wrap_content"?? ????????????android:layout_height="wrap_content"?? ????????????android:layout_weight="1.0"?/>?? ?????????? ????</LinearLayout>?? ?? ????<Button??? ????????android:id="@+id/btnStart"?? ????????android:layout_below="@+id/views2"?? ????????android:layout_width="wrap_content"?? ????????android:layout_height="wrap_content"?? ????????android:text="Start"?/>?? ?????? ????<ImageView??? ????????android:id="@+id/showResult"?? ????????android:layout_below="@+id/btnStart"?? ????????android:layout_width="wrap_content"?? ????????android:layout_height="wrap_content"/>?? ?????? </RelativeLayout>??
Android 圖片合成：添加蒙板效果 不規則相框 透明度漸變效果的實現
先貼一張效果圖，這是一張手機截屏：
左上方的風景圖：背景圖片
右上方的人物圖：前景圖片
左邊心型透明圖：相框圖片
右邊心型黑色圖：蒙板圖片
功能：把前景圖應用蒙板，添加相框效果，合成到后景圖上面：
結果就是下面的那張圖片了。
還有一種是透明度漸變的，效果圖如下：
因為只有透明度漸變，沒有相框。但實現上基本一樣。
下面是實現過程，直接貼代碼吧，其中寫了比較詳細的注釋。只有一個文件，如下：
[java]?view plaincopy為了完整和方便參考，把布局文件也貼一下，如下： [html]?view plaincopy
轉載于:https://www.cnblogs.com/wuwuwu/p/6162648.html
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