1.在这里上传视频到服务器用的是xutils3.0,当然大家也可以用okhttp进行操作. 第一步:我们就是要从我们app的视频列表,进入我们查询本地视频的那个activity,代码如下:
Intent i = new Intent(SelectVideoActivity.this, GetVideoActivity.class); startActivityForResult(i, REQUEST_CODE);这里用startActivityForResult是为了获取返回选中的本地视频的信息.
第二步:在GetVideoActivity里面查询本地所有视频,并将查询到的视频显示在我们GetVideoActivity的页面上,代码如下:
GetVideoActivity的xml布局代码:
<ListView> android:id="@+id/lv_video" android:layout_width="match_parent" android:layout_height="match_parent" <ListView/>GetVideoActivity中的代码:
public class GetVideoActivity extends Activity { private ListView lv; Context mContext; private VideodetailAdapter adapter; private List<BitmapEntity> bit = new ArrayList<BitmapEntity>(); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_get); lv = (ListView) findViewById(R.id.lv_video); mContext = this; new Search_photo().start(); } private Handler mHandler = new Handler() { @SuppressLint("ShowToast") public void handleMessage(android.os.Message msg) { if (msg.what == 1&&bit!=null) { adapter = new VideodetailAdapter(mContext, bit); Toast.makeText(mContext, "视频总数:" + bit.size(), Toast.LENGTH_SHORT).show(); lv.setAdapter(adapter); lv.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) { if(bit.size()!=0){ Intent intent = new Intent(); // String type = "video/mp4"; // Uri uri = Uri.parse("file://"+bit.get(arg2).getUri()); // intent.setDataAndType(uri, type); // startActivity(intent); String uri = bit.get(arg2).getUri(); intent.putExtra("url",bit.get(arg2).getUri()); Log.e("url_ssss", bit.get(arg2).getUri()); setResult(RESULT_OK, intent); finish(); } } }); } }; }; /** * * 遍历系统数据库找出相应的是视频的信息，每找出一条视频信息的同时利用与之关联的找出对应缩略图的uri * 再异步加载缩略图， * 由于查询速度非常快，全部查找完成在设置，等待时间不会太长 * @author Administrator * */ class Search_photo extends Thread { @Override public void run() { // 如果有sd卡（外部存储卡） if (android.os.Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED)) { Uri originalUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI; ContentResolver cr = mContext.getApplicationContext().getContentResolver(); Cursor cursor = cr.query(originalUri, null, null, null, null); if (cursor == null) { return; } for (cursor.moveToFirst(); !cursor.isAfterLast(); cursor.moveToNext()) { String title = cursor.getString(cursor.getColumnIndexOrThrow(MediaStore.Video.Media.TITLE)); String path = cursor.getString(cursor.getColumnIndexOrThrow(MediaStore.Video.Media.DATA)); long size = cursor.getLong(cursor.getColumnIndexOrThrow(MediaStore.Video.Media.SIZE)); long duration = cursor.getInt(cursor.getColumnIndexOrThrow(MediaStore.Video.Media.DURATION)); //获取当前Video对应的Id，然后根据该ID获取其缩略图的uri int id = cursor.getInt(cursor.getColumnIndexOrThrow(MediaStore.Video.Media._ID)); String[] selectionArgs = new String[] { id + "" }; String[] thumbColumns = new String[] { MediaStore.Video.Thumbnails.DATA, MediaStore.Video.Thumbnails.VIDEO_ID }; String selection = MediaStore.Video.Thumbnails.VIDEO_ID + "=?"; String uri_thumb = ""; Cursor thumbCursor = (mContext.getApplicationContext().getContentResolver()).query( MediaStore.Video.Thumbnails.EXTERNAL_CONTENT_URI, thumbColumns, selection, selectionArgs, null); if (thumbCursor != null && thumbCursor.moveToFirst()) { uri_thumb = thumbCursor .getString(thumbCursor.getColumnIndexOrThrow(MediaStore.Video.Thumbnails.DATA)); } BitmapEntity bitmapEntity = new BitmapEntity(title, path, size, uri_thumb, duration); bit.add(bitmapEntity); } if (cursor != null) { cursor.close(); mHandler.sendEmptyMessage(1); } } } } }第三步:ListView视频列表VideodetailAdapter的item的布局文件代码如下:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingTop="5dp" xmlns:app="http://schemas.android.com/apk/res-auto" android:orientation="vertical"> <ImageView android:id="@+id/imgv" android:layout_alignParentLeft="true" android:layout_marginLeft="15dp" android:layout_width="120dp" android:layout_height="90dp" android:scaleType="fitXY" android:src="@mipmap/icon_video"/> <TextView android:id="@+id/tv" android:layout_toRightOf="@+id/imgv" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="this is titile" android:textSize="16sp" android:layout_marginLeft="12dp" /> <TextView android:id="@+id/video_size" android:layout_below="@+id/tv" android:layout_toRightOf="@+id/imgv" android:layout_marginBottom="5dp" android:layout_marginLeft="12dp" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="--" android:textSize="12sp" /> <TextView android:id="@+id/video_time_long" android:layout_below="@+id/tv" android:layout_alignParentRight="true" android:layout_marginRight="15dp" android:layout_marginBottom="5dp" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="--" android:textSize="12sp" /> </RelativeLayout>第四步:适配器VideodetailAdapter的代码:
import android.annotation.SuppressLint; import android.content.Context; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.ImageView; import android.widget.TextView; import com.nostra13.universalimageloader.core.ImageLoader; import java.util.ArrayList; import java.util.List; import teacher.arriga.com.arrigateacher.R; import teacher.arriga.com.arrigateacher.activity.video.BitmapEntity; import teacher.arriga.com.arrigateacher.activity.video.TimeChange; /** * Created by Administrator on 2017/3/7. */ @SuppressLint({"InflateParams", "ViewHolder"}) public class VideodetailAdapter extends BaseAdapter { private List<BitmapEntity> objects = new ArrayList<BitmapEntity>(); @SuppressWarnings("unused") private Context context; private LayoutInflater layoutInflater; public VideodetailAdapter(Context context, List<BitmapEntity> objects) { this.context = context; this.layoutInflater = LayoutInflater.from(context); this.objects = objects; } public List<BitmapEntity> setObjects(List<BitmapEntity> objects) { return this.objects = objects; } @Override public int getCount() { return objects.size(); } @Override public BitmapEntity getItem(int position) { return objects.get(position); } @Override public long getItemId(int position) { return position; } /** * 数据量过大可能出现错乱，暂时不用缓存策略 */ @Override public View getView(int position, View convertView, ViewGroup parent) { // if (convertView == null) { convertView = layoutInflater.inflate(R.layout.videtail_list, null); ViewHolder viewHolder = new ViewHolder(); viewHolder.imgv = (ImageView) convertView.findViewById(R.id.imgv); viewHolder.tv = (TextView) convertView.findViewById(R.id.tv); viewHolder.size = (TextView) convertView.findViewById(R.id.video_size); viewHolder.duration = (TextView) convertView.findViewById(R.id.video_time_long); convertView.setTag(viewHolder); // } initializeViews((BitmapEntity) getItem(position), (ViewHolder) convertView.getTag()); return convertView; } private void initializeViews(BitmapEntity object, ViewHolder holder) { Log.e("adapter", "file://" + object.getUri_thumb()); ImageLoader.getInstance().displayImage("file://" + object.getUri_thumb(), holder.imgv); holder.tv.setText(object.getName()); holder.size.setText(TimeChange.bytes2kb(object.getSize()) + ""); holder.duration.setText(TimeChange.setTime(object.getDuration())); } protected class ViewHolder { private ImageView imgv; private TextView tv; private TextView size; private TextView duration; } }第五步:这样就查询到了本地所有视频文件信息,显示在列表里,之前我们是通过startActivityForResult()开启的,所以我们可以在onActivityResult获取到返回的选中的视频信息.代码如下:
@Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (requestCode == REQUEST_CODE&& resultCode == RESULT_OK && null != data) { String selectedVideo = (String) data.getExtras().get("url"); File file = new File(selectedVideo); //准备上传,显示提示文件 upLoadVideo(file); } }第六步:上传视频文件的方法upLoadVideo(File file):
//上传视频文件到服务器 private void upLoadVideo(File file) { RequestParams params=new RequestParams(HttpUrl.UP_PHOTO); params.addBodyParameter("fileType", "video"); params.addBodyParameter("filePurpose","broadcastvideo"); params.addBodyParameter("fkPurposeId", id); params.addParameter("uploadFile",file); x.http().post(params, new Callback.CommonCallback<String>() { @Override public void onSuccess(String result) { try { JSONObject jsonObject=new JSONObject(result); String errcode = jsonObject.optString("errcode"); if ("0".equals(errcode)){ ToastUtil.showToast("上传成功!"); //刷新界面,重新请求数据 queryVideo(); adapter.notifyDataSetChanged(); }else{ ToastUtil.showToast(jsonObject.getString("msg")); } } catch (JSONException e) { e.printStackTrace(); } } @Override public void onError(Throwable ex, boolean isOnCallback) { Log.e("4444",ex.getMessage().toString()); } @Override public void onCancelled(CancelledException cex) { } @Override public void onFinished() { } }); }最后大概整个视频从本地查找,到选择,再到上传到服务器的整个过程就完成了.
