018_03简易美图

  1 package com.example.day18_03simplemeitu;
  2 
  3 import android.app.Activity;
  4 import android.graphics.ColorMatrixColorFilter;
  5 import android.os.Bundle;
  6 import android.view.Menu;
  7 import android.view.MenuItem;
  8 import android.widget.ImageView;
  9 import android.widget.SeekBar;
 10 import android.widget.SeekBar.OnSeekBarChangeListener;
 11 
 12 public class MainActivity extends Activity implements OnSeekBarChangeListener{
 13 
 14     private ImageView iv_photo;
 15     private SeekBar sb_red;
 16     private SeekBar sb_green;
 17     private SeekBar sb_blue;
 18     private SeekBar sb_rgb;
 19     private float[] arrays;
 20     private ColorMatrixColorFilter cf;
 21 
 22     @Override
 23     protected void onCreate(Bundle savedInstanceState) {
 24         super.onCreate(savedInstanceState);
 25         setContentView(R.layout.activity_main);
 26         
 27         iv_photo = (ImageView) findViewById(R.id.iv_photo);
 28         iv_photo.setImageResource(R.drawable.dd);
 29         
 30         
 31         sb_red = (SeekBar) findViewById(R.id.sb_red);
 32         sb_green = (SeekBar) findViewById(R.id.sb_green);
 33         sb_blue = (SeekBar) findViewById(R.id.sb_blue);
 34         sb_rgb = (SeekBar) findViewById(R.id.sb_rgb);
 35 
 36         
 37         sb_red.setMax(255);
 38         sb_green.setMax(255);
 39         sb_blue.setMax(255);
 40         sb_rgb.setMax(255);
 41 
 42         
 43         arrays = new float[] {        1, 0, 0, 0, 0,// red     1*R + 0*G + 0*B + 0*A + 0
 44                                       0, 1, 0, 0, 0,// green 0*R + 1*G + 0*B + 0*A + 0
 45                                       0, 0, 1, 0, 0,// blue     0*R + 0*G + 1*B + 0*A + 0
 46                                       0, 0, 0, 1, 0};
 47 
 48         cf = new ColorMatrixColorFilter(arrays);
 49 
 50         iv_photo.setColorFilter(cf);
 51                 
 52         sb_red.setOnSeekBarChangeListener(this);
 53         sb_green.setOnSeekBarChangeListener(this);
 54         sb_blue.setOnSeekBarChangeListener(this);
 55         sb_rgb.setOnSeekBarChangeListener(this);
 56     }
 57 
 58     @Override
 59     public void onProgressChanged(SeekBar seekBar, int progress,
 60             boolean fromUser) {
 61         
 62         int id =seekBar.getId();
 63         switch (id) {
 64         case R.id.sb_red:
 65             System.out.println("MainActivity.onProgressChanged() sb_red"+progress);
 66             arrays[4] =progress;    
 67             break;
 68             
 69         case R.id.sb_green:
 70             System.out.println("MainActivity.onProgressChanged() sb_green"+progress);
 71             arrays[9] =progress;
 72             break;
 73         case R.id.sb_blue:
 74             System.out.println("MainActivity.onProgressChanged() sb_blue"+progress);
 75             arrays[14] =progress;
 76             break;
 77         case R.id.sb_rgb:
 78             System.out.println("MainActivity.onProgressChanged() sb_rgb"+progress);
 79             arrays[4] =progress;
 80             arrays[9] =progress;
 81             arrays[14] =progress;
 82  
 83             break;
 84         default:
 85             break;
 86         }
 87          
 88         
 89         cf = new ColorMatrixColorFilter(arrays);
 90         iv_photo.setColorFilter(cf);
 91     }
 92 
 93     @Override
 94     public void onStartTrackingTouch(SeekBar seekBar) {
 95         // TODO Auto-generated method stub    
 96     }
 97 
 98     @Override
 99     public void onStopTrackingTouch(SeekBar seekBar) {
100         // TODO Auto-generated method stub        
101     }
102  
103 }