Android 调用系统相机

Android 调用系统相机拍照、以及相册。完成之后图片是上传到app上。前面的功能已经测试过了。没有上传到服务器，因为我没服务器测试。但项目里面有个类可以参考上传图片到服务器，我就没测试了。接下来看代码，虽然注释写得少，但其作用看英文单词意思，又在或是查看调用。
项目源码下载地址:http://download.csdn.net/detail/qq_16064871/8585169

转载请注明出处: http://blog.csdn.net/qq_16064871

[java] view plain copy

1. package com.example.takephotodemo;  
2.   
3. import java.io.File;  
4. import java.io.IOException;  
5. import android.media.ExifInterface;  
6. import android.net.Uri;  
7. import android.os.Bundle;  
8. import android.os.Environment;  
9. import android.provider.MediaStore;  
10. import android.app.Activity;  
11. import android.content.Intent;  
12. import android.database.Cursor;  
13. import android.graphics.Bitmap;  
14. import android.graphics.BitmapFactory;  
15. import android.graphics.Matrix;  
16. import android.view.Gravity;  
17. import android.view.LayoutInflater;  
18. import android.view.View;  
19. import android.view.View.OnClickListener;  
20. import android.widget.Button;  
21. import android.widget.ImageView;  
22. import android.widget.PopupWindow;  
23. import android.widget.Toast;  
24.   
25. public class MainActivity extends Activity implements OnClickListener {  
26.     private ImageView mimageViewPhotoShow;  
27.     private PopupWindow mPopupWindow;  
28.     private View mpopview;  
29.     private Bitmap photo;  
30.     private File mPhotoFile;  
31.     private int CAMERA_RESULT = 100;  
32.     private int RESULT_LOAD_IMAGE = 200;  
33.     private String saveDir = Environment.getExternalStorageDirectory()  
34.             .getPath() + "/temp_image";  
35.   
36.     @Override  
37.     protected void onCreate(Bundle savedInstanceState) {  
38.         super.onCreate(savedInstanceState);  
39.         setContentView(R.layout.activity_main);  
40.         InitUI();  
41.     }  
42.   
43.     private void InitUI() {  
44.         View buttonChoosePhoto = (Button) findViewById(R.id.buttonChoosePhoto);  
45.         if (buttonChoosePhoto != null) {  
46.             buttonChoosePhoto.setOnClickListener(this);  
47.         }  
48.   
49.         mimageViewPhotoShow = (ImageView) findViewById(R.id.imageViewPhotoShow);  
50.     }  
51.   
52.     @Override  
53.     public void onClick(View arg0) {  
54.         if (arg0.getId() == R.id.buttonChoosePhoto) {  
55.             LayoutInflater inflater = LayoutInflater.from(this);  
56.             mpopview = inflater.inflate(R.layout.layout_login_choose_photo,  
57.                     null);  
58.   
59.             mPopupWindow = new PopupWindow(mpopview, 300, 400, true);  
60.             mPopupWindow.setBackgroundDrawable(getResources().getDrawable(  
61.                     R.drawable.tekephoto_dialog_background));  
62.   
63.             mPopupWindow.showAtLocation(mimageViewPhotoShow, Gravity.CENTER, 0,  
64.                     0);  
65.             Button mbuttonTakePhoto = (Button) mpopview  
66.                     .findViewById(R.id.button_take_photo);  
67.             Button mbuttonChoicePhoto = (Button) mpopview  
68.                     .findViewById(R.id.button_choice_photo);  
69.             Button mbuttonChoicecannce = (Button) mpopview  
70.                     .findViewById(R.id.button_choice_cancer);  
71.   
72.             // 相册上传  
73.             mbuttonChoicePhoto.setOnClickListener(new OnClickListener() {  
74.                 @Override  
75.                 public void onClick(View v) {  
76.                     mPopupWindow.dismiss();  
77.                     Intent i = new Intent(  
78.                             Intent.ACTION_PICK,  
79.                             android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);  
80.                     startActivityForResult(i, RESULT_LOAD_IMAGE);  
81.                 }  
82.             });  
83.   
84.             File savePath = new File(saveDir);  
85.             if (!savePath.exists()) {  
86.                 savePath.mkdirs();  
87.             }  
88.   
89.             // 拍照上传  
90.             mbuttonTakePhoto.setOnClickListener(new OnClickListener() {  
91.                 @Override  
92.                 public void onClick(View v) {  
93.                     mPopupWindow.dismiss();  
94.                     destoryImage();  
95.                     String state = Environment.getExternalStorageState();  
96.                     if (state.equals(Environment.MEDIA_MOUNTED)) {  
97.                         mPhotoFile = new File(saveDir, "temp.jpg");  
98.                         mPhotoFile.delete();  
99.                         if (!mPhotoFile.exists()) {  
100.                             try {  
101.                                 mPhotoFile.createNewFile();  
102.                             } catch (IOException e) {  
103.                                 e.printStackTrace();  
104.                                 Toast.makeText(getApplication(), "照片创建失败!",  
105.                                         Toast.LENGTH_LONG).show();  
106.                                 return;  
107.                             }  
108.                         }  
109.                         Intent intent = new Intent(  
110.                                 "android.media.action.IMAGE_CAPTURE");  
111.                         intent.putExtra(MediaStore.EXTRA_OUTPUT,  
112.                                 Uri.fromFile(mPhotoFile));  
113.                         startActivityForResult(intent, CAMERA_RESULT);  
114.                     } else {  
115.                         Toast.makeText(getApplication(), "sdcard无效或没有插入!",  
116.                                 Toast.LENGTH_SHORT).show();  
117.                     }  
118.                 }  
119.             });  
120.   
121.             mbuttonChoicecannce.setOnClickListener(new OnClickListener() {  
122.                 @Override  
123.                 public void onClick(View v) {  
124.                     // TODO Auto-generated method stub  
125.                     mPopupWindow.dismiss();  
126.                 }  
127.             });  
128.         }  
129.     }  
130.   
131.     @Override  
132.     protected void onActivityResult(int requestCode, int resultCode, Intent data) {  
133.         super.onActivityResult(requestCode, resultCode, data);  
134.         if (requestCode == CAMERA_RESULT && resultCode == RESULT_OK) {  
135.             if (mPhotoFile != null && mPhotoFile.exists()) {  
136.                 BitmapFactory.Options bitmapOptions = new BitmapFactory.Options();  
137.                 bitmapOptions.inSampleSize = 8;  
138.                 int degree = readPictureDegree(mPhotoFile.getAbsolutePath());  
139.                 Bitmap bitmap = BitmapFactory.decodeFile(mPhotoFile.getPath(),  
140.                         bitmapOptions);  
141.                 bitmap = rotaingImageView(degree, bitmap);  
142.                 mimageViewPhotoShow.setImageBitmap(bitmap);  
143.             }  
144.         }  
145.         if (requestCode == RESULT_LOAD_IMAGE && resultCode == RESULT_OK  
146.                 && null != data) {  
147.             Uri selectedImage = data.getData();  
148.             String[] filePathColumn = { MediaStore.Images.Media.DATA };  
149.   
150.             Cursor cursor = getContentResolver().query(selectedImage,  
151.                     filePathColumn, null, null, null);  
152.             cursor.moveToFirst();  
153.   
154.             int columnIndex = cursor.getColumnIndex(filePathColumn[0]);  
155.             String picturePath = cursor.getString(columnIndex);  
156.             cursor.close();  
157.   
158.             mimageViewPhotoShow.setImageBitmap(BitmapFactory  
159.                     .decodeFile(picturePath));  
160.         }  
161.     }  
162.   
163.     private static int readPictureDegree(String path) {  
164.         int degree = 0;  
165.         try {  
166.             ExifInterface exifInterface = new ExifInterface(path);  
167.             int orientation = exifInterface.getAttributeInt(  
168.                     ExifInterface.TAG_ORIENTATION,  
169.                     ExifInterface.ORIENTATION_NORMAL);  
170.             switch (orientation) {  
171.             case ExifInterface.ORIENTATION_ROTATE_90:  
172.                 degree = 90;  
173.                 break;  
174.             case ExifInterface.ORIENTATION_ROTATE_180:  
175.                 degree = 180;  
176.                 break;  
177.             case ExifInterface.ORIENTATION_ROTATE_270:  
178.                 degree = 270;  
179.                 break;  
180.             }  
181.         } catch (IOException e) {  
182.             e.printStackTrace();  
183.         }  
184.         return degree;  
185.     }  
186.   
187.     private static Bitmap rotaingImageView(int angle, Bitmap bitmap) {  
188.         // 旋转图片 动作  
189.         Matrix matrix = new Matrix();  
190.         matrix.postRotate(angle);  
191.         System.out.println("angle2=" + angle);  
192.         // 创建新的图片  
193.         Bitmap resizedBitmap = Bitmap.createBitmap(bitmap, 0, 0,  
194.                 bitmap.getWidth(), bitmap.getHeight(), matrix, true);  
195.         return resizedBitmap;  
196.     }  
197.   
198.     @Override  
199.     protected void onDestroy() {  
200.         destoryImage();  
201.         super.onDestroy();  
202.     }  
203.   
204.     private void destoryImage() {  
205.         if (photo != null) {  
206.             photo.recycle();  
207.             photo = null;  
208.         }  
209.     }  
210. }  

activity_main.xml

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1. <?xml version="1.0" encoding="utf-8"?>  
2. <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  
3.     android:layout_width="match_parent"  
4.     android:layout_height="match_parent"  
5.     android:orientation="vertical" >  
6.   
7.     <ScrollView  
8.         android:id="@+id/scrollView1"  
9.         android:layout_width="match_parent"  
10.         android:layout_height="wrap_content"  
11.         android:layout_weight="1" >  
12.   
13.         <LinearLayout  
14.             android:layout_width="match_parent"  
15.             android:layout_height="match_parent"  
16.             android:orientation="vertical"  
17.             android:paddingTop="20dp" >  
18.   
19.             <LinearLayout  
20.                 android:layout_width="match_parent"  
21.                 android:layout_height="match_parent"  
22.                 android:gravity="center"  
23.                 android:orientation="vertical" >  
24.   
25.                 <ImageView  
26.                     android:id="@+id/imageViewPhotoShow"  
27.                     android:layout_width="150dp"  
28.                     android:layout_height="150dp"  
29.                     android:layout_weight="1" />  
30.             </LinearLayout>  
31.   
32.             <LinearLayout  
33.                 android:layout_width="match_parent"  
34.                 android:layout_height="match_parent"  
35.                 android:gravity="center"  
36.                  android:paddingTop="20dp"  
37.                 android:orientation="vertical" >  
38.   
39.                 <Button  
40.                     android:id="@+id/buttonChoosePhoto"  
41.                     android:layout_width="100dp"  
42.                     android:layout_height="40dp"  
43.                     android:background="@drawable/btn_takephoto_background"  
44.                     android:text="选择头像"  
45.                     android:textColor="#eee"  
46.                     android:textSize="16sp" />  
47.             </LinearLayout>  
48.         </LinearLayout>  
49.     </ScrollView>  
50.   
51. </LinearLayout>  

layout_login_choose_photo.xml

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1. <?xml version="1.0" encoding="utf-8"?>  
2. <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  
3.     android:layout_width="fill_parent"  
4.     android:layout_height="fill_parent"  
5.     android:orientation="vertical" >  
6.   
7.     <TextView  
8.         android:id="@+id/textchoice"  
9.         android:layout_width="wrap_content"  
10.         android:layout_height="40dp"  
11.         android:layout_gravity="center_horizontal"  
12.         android:gravity="center"  
13.         android:text="请选择获取头像方式："  
14.         android:textAppearance="?android:attr/textAppearanceMedium"  
15.         android:textSize="16sp" />  
16.   
17.     <Button  
18.         android:id="@+id/button_take_photo"  
19.         android:layout_width="match_parent"  
20.         android:layout_height="40dp"  
21.         android:layout_marginLeft="10dp"  
22.         android:layout_marginRight="10dp"  
23.         android:layout_marginTop="5dp"  
24.         android:background="@drawable/btn_takephoto_background"  
25.         android:text="拍照"  
26.         android:textColor="#eee"  
27.         android:textSize="16sp" />  
28.   
29.     <Button  
30.         android:id="@+id/button_choice_photo"  
31.         android:layout_width="match_parent"  
32.         android:layout_height="40dp"  
33.         android:layout_marginLeft="10dp"  
34.         android:layout_marginRight="10dp"  
35.         android:layout_marginTop="10dp"  
36.         android:background="@drawable/btn_takephoto_background"  
37.         android:text="从相册选择"  
38.         android:textColor="#eee"  
39.         android:textSize="16sp" />  
40.   
41.     <Button  
42.         android:id="@+id/button_choice_cancer"  
43.         android:layout_width="match_parent"  
44.         android:layout_height="40dp"  
45.         android:layout_marginLeft="10dp"  
46.         android:layout_marginRight="10dp"  
47.         android:layout_marginTop="10dp"  
48.         android:background="@drawable/btn_takephoto_background"  
49.         android:text="取消"  
50.         android:textColor="#eee"  
51.         android:textSize="16sp" />  
52.   
53. </LinearLayout>  

NetUtil这个类，我也是参考网上的，没测试过。是图片上传服务器的。

[java] view plain copy

1. package com.example.takephotodemo;  
2.   
3. import java.io.BufferedReader;  
4. import java.io.File;  
5. import java.io.InputStream;  
6. import java.io.InputStreamReader;  
7. import java.util.ArrayList;  
8. import java.util.List;  
9. import java.util.Map;  
10. import java.util.Set;  
11. import org.apache.http.HttpEntity;  
12. import org.apache.http.HttpResponse;  
13. import org.apache.http.HttpStatus;  
14. import org.apache.http.StatusLine;  
15. import org.apache.http.client.HttpClient;  
16. import org.apache.http.client.entity.UrlEncodedFormEntity;  
17. import org.apache.http.client.methods.HttpGet;  
18. import org.apache.http.client.methods.HttpPost;  
19. import org.apache.http.entity.mime.MultipartEntity;  
20. import org.apache.http.entity.mime.content.FileBody;  
21. import org.apache.http.entity.mime.content.StringBody;  
22. import org.apache.http.impl.client.DefaultHttpClient;  
23. import org.apache.http.message.BasicNameValuePair;  
24.   
25. public class NetUtil {  
26.     /** 
27.      * 以POST方式提交表单 
28.      *  
29.      * @param url 
30.      *            服务器路径 
31.      * @param param 
32.      *            参数键值对 
33.      * @return 响应结果 
34.      * @throws Exception 
35.      */  
36.     public static String doPost(String url, Map<String, Object> param)  
37.             throws Exception {  
38.         HttpClient client = new DefaultHttpClient();  
39.         HttpPost post = new HttpPost(url);  
40.         if (param != null && param.size() > 0) {  
41.             List<BasicNameValuePair> nameValuePairs = new ArrayList<BasicNameValuePair>(  
42.                     param.size());  
43.             Set<String> keys = param.keySet();  
44.             for (Object o : keys) {  
45.                 String key = (String) o;  
46.                 nameValuePairs.add(new BasicNameValuePair(key, String  
47.                         .valueOf(param.get(key))));  
48.             }  
49.             post.setEntity(new UrlEncodedFormEntity(nameValuePairs, "utf-8"));  
50.         }  
51.         HttpResponse response = client.execute(post);  
52.         /** 返回状态 **/  
53.         int statusCode = response.getStatusLine().getStatusCode();  
54.         StringBuffer sb = new StringBuffer();  
55.         if (statusCode == HttpStatus.SC_OK) {  
56.             HttpEntity entity = response.getEntity();  
57.             if (entity != null) {  
58.                 InputStream instream = entity.getContent();  
59.                 BufferedReader br = new BufferedReader(new InputStreamReader(  
60.                         instream));  
61.                 String tempLine;  
62.                 while ((tempLine = br.readLine()) != null) {  
63.                     sb.append(tempLine);  
64.                 }  
65.             }  
66.         }  
67.         post.abort();  
68.         return sb.toString();  
69.     }  
70.   
71.     /** 
72.      *  
73.      *  
74.      * @param url 
75.      * @param param 
76.      * @param file 
77.      * @return  
78.      * @throws Exception 
79.      */  
80.     private String doPost(String url, Map<String, String> param, File file)  
81.             throws Exception {  
82.         HttpPost post = new HttpPost(url);  
83.   
84.         HttpClient client = new DefaultHttpClient();  
85.         MultipartEntity entity = new MultipartEntity();  
86.         if (param != null && !param.isEmpty()) {  
87.             for (Map.Entry<String, String> entry : param.entrySet()) {  
88.                 entity.addPart(entry.getKey(), new StringBody(entry.getValue()));  
89.             }  
90.         }  
91.         // 添加文件参数  
92.         if (file != null && file.exists()) {  
93.             entity.addPart("file", new FileBody(file));  
94.         }  
95.         post.setEntity(entity);  
96.         HttpResponse response = client.execute(post);  
97.         int stateCode = response.getStatusLine().getStatusCode();  
98.         StringBuffer sb = new StringBuffer();  
99.         if (stateCode == HttpStatus.SC_OK) {  
100.             HttpEntity result = response.getEntity();  
101.             if (result != null) {  
102.                 InputStream is = result.getContent();  
103.                 BufferedReader br = new BufferedReader(  
104.                         new InputStreamReader(is));  
105.                 String tempLine;  
106.                 while ((tempLine = br.readLine()) != null) {  
107.                     sb.append(tempLine);  
108.                 }  
109.             }  
110.         }  
111.         post.abort();  
112.         return sb.toString();  
113.     }  
114.   
115.     private String doGet(String url) {  
116.         StringBuilder sb = new StringBuilder();  
117.         try {  
118.             HttpGet get = new HttpGet(url);  
119.             // HttpPost post = new HttpPost(url);  
120.   
121.             HttpClient client = new DefaultHttpClient();  
122.             HttpResponse response = client.execute(get);  
123.             StatusLine state = response.getStatusLine();  
124.             if (state.getStatusCode() == HttpStatus.SC_OK) {  
125.                 HttpEntity eneity = response.getEntity();  
126.                 BufferedReader br = new BufferedReader(new InputStreamReader(  
127.                         eneity.getContent()));  
128.                 String content;  
129.                 while ((content = br.readLine()) != null) {  
130.                     sb.append(content);  
131.                 }  
132.             }  
133.             get.abort();  
134.         } catch (Exception e) {  
135.             e.printStackTrace();  
136.             return sb.toString();  
137.         }  
138.         return sb.toString();  
139.     }  
140. }  

记得加入权限，权限主要是访问sd存储，以及调用系统相机，相册。上传服务器权限也有了。只是我没服务器测试。

[html] view plain copy

1. <uses-permission android:name="android.permission.CAMERA" />  
2. <uses-permission android:name="android.permission.INTERNET" />  
3. <uses-permission android:name="android.permission.VIBRATE" />  
4. <uses-permission android:name="android.permission.INTERNET" />  
5. <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />  
6. <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />  

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