package com.loaderman.customviewdemo;

import android.app.Activity;

import android.graphics.ColorMatrix;

import android.os.Bundle;

import android.util.Log;

public class MainActivity extends Activity {

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        ColorMatrix colorMatrix1 = new ColorMatrix(new float[]{

                0.1f, 0.2f, 0.3f, 0.4f, 0.5f,

                0, 1, 0, 0, 0,

                0, 0, 1, 0, 0,

                0, 0, 0, 1, 0,

        });

        ColorMatrix colorMatrix2 = new ColorMatrix(new float[]{

                0.11f, 0, 0, 0, 0,

                0, 0.22f, 0, 0, 0,

                0, 0, 0.33f, 0, 0,

                0, 0, 0, 0.44f, 0,

        });

        printSetConcat(colorMatrix1,colorMatrix2);

//        printPreConcat(colorMatrix1,colorMatrix2);

//        printPostConcat(colorMatrix1,colorMatrix2);

    }

    private void printPostConcat(ColorMatrix colorMatrix1, ColorMatrix colorMatrix2){

        Log.d("loaderman",printArray(colorMatrix1.getArray()));

        Log.d("loaderman",printArray(colorMatrix2.getArray()));

        colorMatrix2.postConcat(colorMatrix1);

        Log.d("loaderman",printArray(colorMatrix2.getArray()));

    }

    private void printPreConcat(ColorMatrix colorMatrix1,ColorMatrix colorMatrix2){

        Log.d("loaderman",printArray(colorMatrix1.getArray()));

        colorMatrix1.preConcat(colorMatrix2);

        Log.d("loaderman",printArray(colorMatrix2.getArray()));

        Log.d("loaderman",printArray(colorMatrix1.getArray()));

    }

    private void printSetConcat(ColorMatrix colorMatrix1,ColorMatrix colorMatrix2){

        ColorMatrix resultMatrix = new ColorMatrix(new float[]{

                0, 0, 0, 0, 0,

                0, 0, 0, 0, 0,

                0, 0, 0, 0, 0,

                0, 0, 0, 0, 0,

        });

        resultMatrix.setConcat(colorMatrix1,colorMatrix2);

        Log.d("loaderman",printArray(colorMatrix1.getArray()));

        Log.d("loaderman",printArray(colorMatrix2.getArray()));

        Log.d("loaderman",printArray(resultMatrix.getArray()));

    }

    private String printArray(float[] array){

        StringBuilder builder = new StringBuilder("array dump:\n");

        for (int i=0;i<array.length;i++){

            if (i%5==0){

                builder.append("\n");

            }

            builder.append(array[i]+" ");

        }

        return builder.toString();

    }

}

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout

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

    android:orientation="vertical"

    android:background="#ffffff"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent">

    <com.loaderman.customviewdemo.MyView

        android:layout_width="match_parent"

        android:layout_height="match_parent"/>

</LinearLayout>

package com.loaderman.customviewdemo;

import android.content.Context;

import android.graphics.*;

import android.util.AttributeSet;

import android.view.View;

public class MyView extends View {

    private Paint mPaint = new Paint();

    private Bitmap bitmap;// 位图

    public MyView(Context context, AttributeSet attrs) {

        super(context, attrs);

        mPaint.setAntiAlias(true);

        // 获取位图

        bitmap = BitmapFactory.decodeResource(context.getResources(), R.drawable.dog);

    }

    @Override

    protected void onDraw(Canvas canvas) {

        super.onDraw(canvas);

//        drawRect(canvas);

        drawBitmap(canvas);

    }

    private void drawRect(Canvas canvas){

        mPaint.setARGB(255,200,100,100);

        // 绘制原始位图

        canvas.drawRect(0,0,500,600,mPaint);

        canvas.translate(550,0);

        // 生成色彩矩阵

        ColorMatrix colorMatrix = new ColorMatrix(new float[]{

                0, 0, 0, 0, 0,

                0, 0, 0, 0, 0,

                0, 0, 1, 0, 0,

                0, 0, 0, 1, 0,

        });

        mPaint.setColorFilter(new ColorMatrixColorFilter(colorMatrix));

        canvas.drawRect(0,0,500,600,mPaint);

    }

    private void drawBitmap(Canvas canvas){

        canvas.drawBitmap(bitmap, null, new Rect(0, 0, 500, 500 * bitmap.getHeight() / bitmap.getWidth()), mPaint);

        canvas.save();

        canvas.translate(510, 0);

        // 生成色彩矩阵

//        ColorMatrix colorMatrix = new ColorMatrix(new float[]{

//                0.213f, 0.715f, 0.072f, 0, 0,

//                0.213f, 0.715f, 0.072f, 0, 0,

//                0.213f, 0.715f, 0.072f, 0, 0,

//                0,       0,    0, 1, 0,

//        });

        ColorMatrix colorMatrix = new ColorMatrix();

        colorMatrix.setScale(1,1.3f,1,1);

        mPaint.setColorFilter(new ColorMatrixColorFilter(colorMatrix));

        canvas.drawBitmap(bitmap, null, new Rect(0, 0, 500, 500 * bitmap.getHeight() / bitmap.getWidth()), mPaint);

        canvas.restore();

//        canvas.translate(0,500);

//        ColorMatrix colorMatrix2 = new ColorMatrix(new float[]{

//                0.3086f, 0.6094f, 0.0820f, 0, 0,

//                0.3086f, 0.6094f, 0.0820f, 0, 0,

//                0.3086f, 0.6094f, 0.0820f, 0, 0,

//                0    , 0    , 0    , 1, 0

//        });

//

//        mPaint.setColorFilter(new ColorMatrixColorFilter(colorMatrix2));

//        canvas.drawBitmap(bitmap, null, new Rect(0, 0, 500, 500 * bitmap.getHeight() / bitmap.getWidth()), mPaint);

//

//        canvas.translate(510,0);

//        ColorMatrix colorMatrix3 = new ColorMatrix(new float[]{

//                0, 0, 0, 0, 0,

//                0, 0, 0, 0, 0,

//                0, 0, 1, 0, 0,

//                0, 0, 0, 1, 0,

//        });

//        mPaint.setColorFilter(new ColorMatrixColorFilter(colorMatrix3));

//        canvas.drawBitmap(bitmap, null, new Rect(0, 0, 500, 500 * bitmap.getHeight() / bitmap.getWidth()), mPaint);

    }

}