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         sb_red = (SeekBar) findViewById(R.id.sb_red);
31         sb_green = (SeekBar) findViewById(R.id.sb_green);
32         sb_blue = (SeekBar) findViewById(R.id.sb_blue);
33         sb_rgb = (SeekBar) findViewById(R.id.sb_rgb);
34     
35         sb_red.setMax(255);
36         sb_green.setMax(255);
37         sb_blue.setMax(255);
38         sb_rgb.setMax(255);
39 
40         arrays = new float[] {        1, 0, 0, 0, 0,// red     1*R + 0*G + 0*B + 0*A + 0
41                                       0, 1, 0, 0, 0,// green 0*R + 1*G + 0*B + 0*A + 0
42                                       0, 0, 1, 0, 0,// blue     0*R + 0*G + 1*B + 0*A + 0
43                                       0, 0, 0, 1, 0};
44 
45         cf = new ColorMatrixColorFilter(arrays);
46 
47         iv_photo.setColorFilter(cf);
48                 
49         sb_red.setOnSeekBarChangeListener(this);
50         sb_green.setOnSeekBarChangeListener(this);
51         sb_blue.setOnSeekBarChangeListener(this);
52         sb_rgb.setOnSeekBarChangeListener(this);
53     }
54 
55     @Override
56     public void onProgressChanged(SeekBar seekBar, int progress,
57             boolean fromUser) {
58         
59         int id =seekBar.getId();
60         switch (id) {
61         case R.id.sb_red:
62             System.out.println("MainActivity.onProgressChanged() sb_red"+progress);
63             arrays[4] =progress;    
64             break;
65             
66         case R.id.sb_green:
67             System.out.println("MainActivity.onProgressChanged() sb_green"+progress);
68             arrays[9] =progress;
69             break;
70         case R.id.sb_blue:
71             System.out.println("MainActivity.onProgressChanged() sb_blue"+progress);
72             arrays[14] =progress;
73             break;
74         case R.id.sb_rgb:
75             System.out.println("MainActivity.onProgressChanged() sb_rgb"+progress);
76             arrays[4] =progress;
77             arrays[9] =progress;
78             arrays[14] =progress;
79  
80             break;
81         default:
82             break;
83         }
84         cf = new ColorMatrixColorFilter(arrays);
85         iv_photo.setColorFilter(cf);
86     }
87 
88     @Override
89     public void onStartTrackingTouch(SeekBar seekBar) {
90         // TODO Auto-generated method stub    
91     }
92 
93     @Override
94     public void onStopTrackingTouch(SeekBar seekBar) {
95         // TODO Auto-generated method stub        
96     }
97 }

 1 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 2     xmlns:tools="http://schemas.android.com/tools"
 3     android:layout_width="match_parent"
 4     android:layout_height="match_parent"
 5     android:paddingBottom="@dimen/activity_vertical_margin"
 6     android:paddingLeft="@dimen/activity_horizontal_margin"
 7     android:paddingRight="@dimen/activity_horizontal_margin"
 8     android:paddingTop="@dimen/activity_vertical_margin"
 9     tools:context="com.example.day18_03simplemeitu.MainActivity"
10     android:orientation="vertical" >
11 
12   <SeekBar 
13      android:id="@+id/sb_red"
14      android:layout_width="match_parent"
15      android:layout_height="wrap_content"
16      />
17   <SeekBar 
18      android:id="@+id/sb_green"
19      android:layout_width="match_parent"
20      android:layout_height="wrap_content"
21      />
22   <SeekBar 
23      android:id="@+id/sb_blue"
24      android:layout_width="match_parent"
25      android:layout_height="wrap_content"
26      />
27   <SeekBar 
28      android:id="@+id/sb_rgb"
29      android:layout_width="match_parent"
30      android:layout_height="wrap_content"
31      />
32   <ImageView
33       android:id="@+id/iv_photo"
34       android:layout_width="wrap_content"
35      android:layout_height="wrap_content"
36       />
37 </LinearLayout>

物随心转，境由心造，一切烦恼皆由心生。