安卓视频上传与下载 核心代码：
if (localUrl == null) {
localUrl = Environment.getExternalStorageDirectory()
.getAbsolutePath()
+ "/VideoCache/"
+ System.currentTimeMillis() + ".mp4";
}
Log.d("localUrl: " , localUrl);
File cacheFile = new File(localUrl);
if (!cacheFile.exists()) {
cacheFile.getParentFile().mkdirs();
try {
cacheFile.createNewFile();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
readSize = cacheFile.length();
try {
out = new FileOutputStream(cacheFile, true);
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
if (mediaLength == -1) {
return;
}
mHandler.sendEmptyMessage(VIDEO_STATE_UPDATE);
try {
while ((len = inputStream.read(buffer)) != -1) {
// 处理下载的数据
try{
out.write(buffer, 0, len);
readSize += len;
} catch (Exception e) {
e.printStackTrace();
}
if(cachepercent==100.0||cachepercent==100.00){
mVideoView.setVideoPath(localUrl);
mVideoView.start();
String s1 = String.format("已缓存: [%.2f%%]", cachepercent);
tvcache.setText(s1);
return;