Android调用系统相机和相册

准备工作

权限

<!-- 往SDCard写入数据权限 -->
<uses-permission android:name="android.permission.
WRITE_EXTERNAL_STORAGE" />
<!--请求访问使用照相设备-->
<uses-permission android:name="android.permission.CAMERA" />

常量

public final static int ALBUM_REQUEST_CODE = 1;public final static int CROP_REQUEST = 2;public final static int CAMERA_REQUEST_CODE = 3;// 拍照路径public static String SAVED_IMAGE_DIR_PATH =
Environment.getExternalStorageDirectory().getPath()
+ "/AppName/camera/";String cameraPath;

相机

    // 指定相机拍摄照片保存地址    String state = Environment.getExternalStorageState();    if (state.equals(Environment.MEDIA_MOUNTED)) {
    cameraPath = SAVED_IMAGE_DIR_PATH +
   System.currentTimeMillis() + ".png";
    Intent intent = new Intent();        // 指定开启系统相机的Action
    intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
    String out_file_path = SAVED_IMAGE_DIR_PATH;
    File dir = new File(out_file_path);    if (!dir.exists()) {
        dir.mkdirs();
    }
    // 把文件地址转换成Uri格式
    Uri uri = Uri.fromFile(new File(cameraPath));        // 设置系统相机拍摄照片完成后图片文件的存放地址
    intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
    startActivityForResult(intent, CAMERA_REQUEST_CODE);
} else {
    Toast.makeText(getApplicationContext(), "请确认已经插入SD卡",
            Toast.LENGTH_LONG).show();
}

onActivityResult

拿到cameraPath，就随便你搞了。

@Override

public void onActivityResult(int requestCode, int resultCode, Intent data) {    super.onActivityResult(requestCode, resultCode, data);    if (resultCode == Activity.RESULT_OK) {        if (requestCode == CAMERA_REQUEST_CODE) {
            LogUtil.d("path=" + cameraPath);
        }
 }

相册

Intent intent = new Intent(Intent.ACTION_PICK, null);intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, "image/*");intent.setAction(Intent.ACTION_GET_CONTENT);startActivityForResult(intent, ALBUM_REQUEST_CODE);

onActivityResult

调用系统相册，然后通过Uri拿到图片的绝对地址。

 @Override
 public void onActivityResult(int requestCode,    int resultCode, Intent data) {       super.onActivityResult(requestCode, resultCode, data);     if (resultCode == Activity.RESULT_OK) {            if (requestCode == AppConstants.ALBUM_REQUEST_CODE) {                try {
        Uri uri = data.getData();                     final String absolutePath=  getAbsolutePath(mActivity, uri);
      ogUtil.d("path=" + absolutePath);
                 } catch (Exception e) {
                    e.printStackTrace();
                     }
            }

        }
    }

getAbsolutePath方法

 public String getAbsolutePath(final Context context,             final Uri uri) {      if (null == uri) return null;           final String scheme = uri.getScheme();
     String data = null;            if (scheme == null)
         data = uri.getPath();            else if (ContentResolver.SCHEME_FILE.equals(scheme)) {
         data = uri.getPath();
     } else if (ContentResolver.SCHEME_CONTENT.equals(scheme)) {
         Cursor cursor = context.getContentResolver().query(uri,
         new String[]{MediaStore.Images.ImageColumns.DATA},             null, null, null);          if (null != cursor) {                          if (cursor.moveToFirst()) {                               int index = cursor.getColumnIndex(              MediaStore.Images.ImageColumns.DATA);                                if (index > -1) {
               data = cursor.getString(index);
                 }
             }
             cursor.close();
         }
     }     return data;
 }