1.调用系统的照相机程序

1. Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
2. startActivityForResult(intent, TAKE_PHOTO_WITH_DATA);

2.在onActivityResult中处理返回的data final Bitmap photo = data.getParcelableExtra("data"); 如果不需要做剪切处理就可以直接使用图片了，比如输出到ImageView上 imageView.setImageBitmap(photo); 如果需要做剪切处理，就继续向下执行

3.做剪切处理

1. Intent intent = new Intent("com.android.camera.action.CROP");
2. intent.setType("image/*");
3. intent.putExtra("data", data);
4. intent.putExtra("crop", "true");
5. intent.putExtra("aspectX", 1);
6. intent.putExtra("aspectY", 1);
7. intent.putExtra("outputX", 128);
8. intent.putExtra("outputY", 128);
9. intent.putExtra("return-data", true);
10. artActivityForResult(intent, PHOTO_PICKED_WITH_DATA);

4.在onActivityResult中处理 与第二步相同。

完整代码：

1. public class SdCardUriTestActivity extends Activity {
2. /** Called when the activity is first created. */
3. private Button btnTake = null;
4. private ImageView lblImage = null;
5.  
6. private static final int PHOTO_PICKED_WITH_DATA = 3021;
7. private static final int CAMERA_WITH_DATA = 3023;
8.  
9. @Override
10. public void onCreate(Bundle savedInstanceState) {
11. super.onCreate(savedInstanceState);
12. setContentView(R.layout.main);
13.  
14. btnTake = (Button)findViewById(R.id.btnTake);
15. lblImage = (ImageView)findViewById(R.id.lblImage);
16. btnTake.setOnClickListener(new View.OnClickListener() {
17.  
18. @Override
19. public void onClick(View v) {
20. // TODO Auto-generated method stub
21. Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
22. startActivityForResult(intent, CAMERA_WITH_DATA);
23. }
24. });
25.  
26. }
27.  
28. @Override
29. protected void onActivityResult(int requestCode, int resultCode, Intent data) {
30. // TODO Auto-generated method stub
31. if(resultCode!=RESULT_OK)
32. return;
33. switch(requestCode){
34. case CAMERA_WITH_DATA:
35. final Bitmap photo = data.getParcelableExtra("data");
36. if(photo!=null){
37. doCropPhoto(photo);
38. }
39. case PHOTO_PICKED_WITH_DATA:
40. Bitmap photo1 = data.getParcelableExtra("data");
41. if(photo1!=null){
42. lblImage.setImageBitmap(photo1);
43. }
44.  
45. }
46. }
47.  
48. protected void doCropPhoto(Bitmap data){
49. Intent intent = getCropImageIntent(data);
50. startActivityForResult(intent, PHOTO_PICKED_WITH_DATA);
51. }
52.  
53. public static Intent getCropImageIntent(Bitmap data) {
54. Intent intent = new Intent("com.android.camera.action.CROP");
55. intent.setType("image/*");
56. intent.putExtra("data", data);
57. intent.putExtra("crop", "true");
58. intent.putExtra("aspectX", 1);
59. intent.putExtra("aspectY", 1);
60. intent.putExtra("outputX", 128);
61. intent.putExtra("outputY", 128);
62. intent.putExtra("return-data", true);
63. return intent;

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