我是一个Android开发人员.我也想使用ScrollView.This ScrollView需要一段时间禁用滚动和一些时间启用滚动.但我无法禁用滚动.如何实现它.请帮助我.我也尝试使用一些代码,如
fullparentscrolling.setHorizontalFadingEdgeEnabled(false);
fullparentscrolling.setVerticalFadingEdgeEnabled(false);
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要么
fullparentscrolling.setEnabled(false);
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但它不起作用.
我们如何更新ListView中的进度条.当每个进度条与文件下载相关联时,通过AsyncTask完成.
该功能将是:
我还使用数据库下载文件.该列表还取决于数据库向量.我该如何实现它.我也试过但没有得到解决方案.
以下是详细描述它的两个屏幕截图:

我也试过这段代码:
temp = databaseHandler.getAllNotifyNumber();
list_download = (ListView) findViewById(R.id.list_download);
myCustomAdapter = new MyCustomAdapter(mContext);
list_download.setAdapter(myCustomAdapter);
myCustomAdapter.notifyDataSetChanged();
for (int index = 0; index < temp.size(); index++) {
String url = "http://upload.wikimedia.org/wikipedia/commons/0/05/Sna_large.png";
grabURL(url);
}
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这是AsyncTask mathod:
public void grabURL(String url) {
new GrabURL().execute(url);
}
private class GrabURL extends AsyncTask<String, Integer, String> {
protected String doInBackground(String... urls) {
String filename = "MySampleFile.png";
File myFile = new File(directory, filename);
try {
URL url = new URL(urls[0]);
URLConnection connection …Run Code Online (Sandbox Code Playgroud) android download android-listview android-progressbar android-asynctask
我想从我的服务器下载文件(mp3).
我想显示下载进度,但我遇到的问题是整个文件大小-1.
截图:
我的代码:
try {
URL url = new URL(urls[0]);
// URLConnection connection = url.openConnection();
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
connection.setDoOutput(true);
connection.connect();
int fileSize = connection.getContentLength();
if (fileSize == -1)
fileSize = connection.getHeaderFieldInt("Length", -1);
InputStream is = new BufferedInputStream(url.openStream());
OutputStream os = new FileOutputStream(myFile);
byte data[] = new byte[1024];
long total = 0;
int count;
while ((count = is.read(data)) != -1) {
total += count;
Log.d("fileSize", "Lenght of file: " + fileSize);
Log.d("total", "Lenght of file: …Run Code Online (Sandbox Code Playgroud) 我有一个Android应用程序.在这个应用程序中,我通过谷歌GCM实现推送通知.它在Marshmallow下工作得很好.但是当我打开这个应用程序到Marshmallow然后它没有打开应用程序.它显示一个错误消息.
GoogleService初始化失败,状态:10,缺少预期资源:'R.string.google_app_id'用于初始化Google服务.可能的原因是缺少google-services.json或com.google.gms.google-services gradle插件
只有我为Marshmallow得到了这个错误.但是其他版本运行良好.不明白什么是Marshmallow的问题.请给我任何建议如何我可以解决Marshmallow.Thanks All的这个错误.
android push-notification google-cloud-messaging android-6.0-marshmallow
I am android developer and want to create a android apps.In this apps ,it needed to show the android default ringtone list.But i can not show it.How to get the android default ringtone list .
Please help to me.