对话框工具类用法（一）

———选择对话框调用系统视频和即时录像

?

对话框的用途很广泛，很多时候，这些对话框我们都可以复用，这样能节省下来很多时间，所以今天在这里把关于对话框相关的代码整理一下，以便于日后阅读，日后如果有发现新的用法，也会在这里更新。

?

<!--[if gte mso 9]><xml><w:WordDocument><w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel><w:DisplayHorizontalDrawingGridEvery>0</w:DisplayHorizontalDrawingGridEvery><w:DisplayVerticalDrawingGridEvery>2</w:DisplayVerticalDrawingGridEvery><w:DocumentKind>DocumentNotSpecified</w:DocumentKind><w:DrawingGridVerticalSpacing>7.8</w:DrawingGridVerticalSpacing><w:View>Normal</w:View><w:Compatibility></w:Compatibility><w:Zoom>0</w:Zoom></w:WordDocument></xml><![endif]--><!--StartFragment--><!--EndFragment-->

今次利用一个调用系统资源和选择对话框结合起来。

?

/**
	 * 选择本地视频还是录制上传
	 */
	private void showChooseDialog(int type) {
		AlertDialog.Builder builder = new Builder(context);
		if (type == Configs.Type.VIDEO) {
			builder.setTitle("发送视频");
			builder.setItems(new String[] { "即时发送", "本地发送" },
					new DialogInterface.OnClickListener() {
						public void onClick(DialogInterface dialog, int which) {
							dialog.dismiss();
							Intent intent = null;
							switch (which) {
							case 0:
								Intent intent_video = new Intent(
										MediaStore.ACTION_VIDEO_CAPTURE);
								intent_video.putExtra(
										MediaStore.EXTRA_VIDEO_QUALITY,
										Configs.Format.VIDEO_QUALITY);
								intent_video.putExtra(
										MediaStore.EXTRA_SIZE_LIMIT,
										Configs.Format.VIDEO_SIZE_LIMIT);
								intent_video.putExtra(
										MediaStore.EXTRA_DURATION_LIMIT,
										Configs.Format.LIMIT_VIDEO_DURATION);
								if (checkMemoryCard()) {
									startActivityForResult(
											intent_video,
											Configs.Code.REQUEST_CODE_TAKE_VEDIO);
								}
								break;

							case 1:
								intent = new Intent(Intent.ACTION_PICK, null);
								intent.setDataAndType(
										MediaStore.Video.Media.EXTERNAL_CONTENT_URI,
										"video/*");
								startActivityForResult(intent,
										Configs.Code.REQUEST_CODE_ALBMN_VIDEO);
								break;
							}
						}
					});
		}
		builder.create().show();
	}


在onActivityResult方法里面
case Configs.Code.REQUEST_CODE_TAKE_VEDIO:
				Uri videoUri = data.getData();
				Cursor videoCursor = this.getContentResolver().query(videoUri,
						null, null, null, null);
				if (videoCursor != null && videoCursor.moveToNext()) {
					videoFilePath = videoCursor.getString(videoCursor
							.getColumnIndex(VideoColumns.DATA));
					// int id = videoCursor.getInt(videoCursor
					// .getColumnIndex(VideoColumns._ID));
					// Bitmap videoBitmap = Thumbnails.getThumbnail(
					// getContentResolver(), id, Thumbnails.MICRO_KIND,
					// null);
					videoCursor.close();
				}
				sendFile(to, videoFilePath);
				videoFilePath = null;
				break;
			case Configs.Code.REQUEST_CODE_ALBMN_VIDEO:
				Uri video_uri = data.getData();
				String[] video_proj = { MediaStore.Video.Media.DATA };
				Cursor _videoCursor = getContentResolver().query(video_uri,
						video_proj, null, null, null);
				if (_videoCursor != null) {
					int column_index = _videoCursor
							.getColumnIndexOrThrow(MediaStore.Video.Media.DATA);
					if (_videoCursor.getCount() > 0
							&& _videoCursor.moveToFirst()) {
						videoFilePath = _videoCursor.getString(column_index);
						sendFile(to, videoFilePath);// 发送视频文件
						videoFilePath = null;
					} else {
						Toast.makeText(this, "视频未找到", Toast.LENGTH_SHORT)
								.show();
					}
				} else {
					Toast.makeText(this, "视频未找到", Toast.LENGTH_SHORT).show();
				}

?

对话框工具类（一） 选择对话框

原文：http://zhonglunshun.iteye.com/blog/2171143