获取当地图片或拍照图片

获取本地图片或拍照图片

CharSequence[] items = {"相册", "相机"};       new AlertDialog.Builder(this)      .setTitle("选择图片来源")      .setItems(items, new OnClickListener() {          public void onClick(DialogInterface dialog, int which) {              if( which == SELECT_PICTURE ){                  Intent intent = new Intent(Intent.ACTION_GET_CONTENT);                  intent.addCategory(Intent.CATEGORY_OPENABLE);                  intent.setType("image/*");                  startActivityForResult(Intent.createChooser(intent, "选择图片"), SELECT_PICTURE);               }else{                  Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);                    startActivityForResult(intent, SELECT_CAMER);                }          }      })      .create().show();   

处理图片，方法一，直接处理返回图片：

注释：

1、网上有说明，直接处理返回的图片是被系统压缩过的，不过自己在测试的过程并没有区别；

2、如果用户不断的重新获取图片的话，必须把现在的Bmp内存释放，否则会报错！ bmp.recycle()。

protected void onActivityResult(int requestCode, int resultCode, Intent data) {      super.onActivityResult(requestCode, resultCode, data);      if(resultCode == RESULT_OK){          //选择图片          Uri uri = data.getData();           ContentResolver cr = this.getContentResolver();           try {              if(bmp != null)//如果不释放的话，不断取图片，将会内存不够                  bmp.recycle();              bmp = BitmapFactory.decodeStream(cr.openInputStream(uri));          } catch (FileNotFoundException e) {              // TODO Auto-generated catch block              e.printStackTrace();          }          System.out.println("the bmp toString: " + bmp);          imageSV.setBmp(bmp);      }else{          Toast.makeText(SetImageActivity.this, "请重新选择图片", Toast.LENGTH_SHORT).show();      }  

处理图片，方法二，获得图片的地址再处理：

protected void onActivityResult(int requestCode, int resultCode, Intent data) {      super.onActivityResult(requestCode, resultCode, data);      if(resultCode == RESULT_OK){          Uri uri = data.getData();           String [] proj={MediaStore.Images.Media.DATA};          Cursor cursor = managedQuery( uri,                  proj,                 // Which columns to return                  null,       // WHERE clause; which rows to return (all rows)                  null,       // WHERE clause selection arguments (none)                  null);                 // Order-by clause (ascending by name)                    int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);          cursor.moveToFirst();                    String path = cursor.getString(column_index);          bmp = BitmapFactory.decodeFile(path);          System.out.println("the path is :" + path);      }else{          Toast.makeText(SetImageActivity.this, "请重新选择图片", Toast.LENGTH_SHORT).show();      }  }            }  

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