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();  
    }  
}  
          
}