问题
in my app many sounds . its run by Internet by url >>
I want to set progress Bar in my app ?
How I do it ?
this is sound Activity:
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/background"
android:orientation="vertical"
tools:ignore="ScrollViewSize" >
<MediaController
android:id="@+id/mediaController1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_marginBottom="66dp"
android:layout_marginRight="14dp" >
</MediaController>
<ScrollView
android:id="@+id/scrollView1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignTop="@+id/play"
android:layout_centerHorizontal="true"
tools:ignore="NotSibling" >
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="316dp"
android:orientation="vertical" >
<ImageView
android:id="@+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:paddingBottom="90dp"
android:paddingTop="50dp"
android:src="@drawable/logo5"
tools:ignore="ContentDescription" />
<ImageButton
android:id="@+id/play"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:src="@drawable/ic_action_play"
tools:ignore="ContentDescription,ObsoleteLayoutParam" />
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="25dp"
android:text="@string/song1"
android:textAppearance="?android:attr/textAppearanceLarge" />
<ImageButton
android:id="@+id/dawnload"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_toRightOf="@+id/play"
android:src="@drawable/ic_action_download"
tools:ignore="ContentDescription,ObsoleteLayoutParam" />
<ImageButton
android:id="@+id/sahere"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_toLeftOf="@+id/play"
android:src="@drawable/ic_action_share"
tools:ignore="ContentDescription,ObsoleteLayoutParam" />
</RelativeLayout>
</ScrollView>
</RelativeLayout>
also this is sound class
package com.Helmi_wa_ana;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import android.app.Activity;
import android.content.Intent;
import android.media.MediaPlayer;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageButton;
public class Sound1 extends Activity {
@Override protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.sound1);
final MediaPlayer mediaController1 = new MediaPlayer();
try {
mediaController1.setDataSource("http://alshbab90.softsmedia.com/helmi_1.mp3");
} catch (IllegalArgumentException e1) {
e1.printStackTrace();
} catch (IllegalStateException e1) {
e1.printStackTrace();
} catch (IOException e1) {
e1.printStackTrace();
}
try {
mediaController1.prepare();
} catch (IllegalStateException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
ImageButton play = (ImageButton) findViewById(R.id.play);
play.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
if (mediaController1.isPlaying()) {
mediaController1.pause();
} else {
mediaController1.start();
}
}
});
ImageButton sahere = (ImageButton) findViewById(R.id.sahere);
sahere.setOnClickListener(new OnClickListener() {
public void onClick(View v)
{
Intent sharingIntent = new Intent(Intent.ACTION_SEND);
sharingIntent.setType("text/plain");
sharingIntent.putExtra(android.content.Intent.EXTRA_TEXT, getResources().getString(R.string.share1));
startActivity(Intent.createChooser(sharingIntent,"?????? ???????? ?????? :"));
}
});
ImageButton dawnolad = (ImageButton) findViewById(R.id.dawnload);
dawnolad.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
}
protected InputStream openUrl() {
String url = "http://alshbab90.softsmedia.com/helmi_1.mp3";
InputStream stream = null;
HttpURLConnection connection = null;
try {
connection = (HttpURLConnection)new URL(url).openConnection();
} catch (MalformedURLException e1) {
e1.printStackTrace();
} catch (IOException e1) {
e1.printStackTrace();
}
try {
if (connection.getResponseCode() == HttpURLConnection.HTTP_OK) {
stream = connection.getInputStream();
}
} catch (IOException e) {
e.printStackTrace();
}
return stream;
}
});
}
}
回答1:
Hi please try the below reference link for Progressbar tutorials.Hope it should helpful for you. You can download the sample source code and try it in your application.
Progress Bar
Progress bar for downloading a file
Android Progress Bar Example
Hi here i added the sample download file from server code. Please check and let me know.
import java.io.InputStream;
import java.net.URL;
import android.app.Activity;
import android.app.ProgressDialog;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import java.io.BufferedInputStream;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.net.URLConnection;
import android.app.Dialog;
import android.graphics.drawable.Drawable;
import android.os.AsyncTask;
import android.os.Environment;
import android.widget.ImageView;
public class download extends Activity {
// button to show progress dialog
Button btnShowProgress;
// Progress Dialog
private ProgressDialog pDialog;
ImageView my_image;
// Progress dialog type (0 - for Horizontal progress bar)
public static final int progress_bar_type = 0;
// File url to download
private static String file_url = "http://alshbab90.softsmedia.com/helmi_1.mp3";
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// show progress bar button
btnShowProgress = (Button) findViewById(R.id.btnProgressBar);
// Image view to show image after downloading
my_image = (ImageView) findViewById(R.id.my_image);
/**
* Show Progress bar click event
* */
btnShowProgress.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// starting new Async Task
new DownloadFileFromURL().execute(file_url);
}
});
}
/**
* Showing Dialog
* */
@Override
protected Dialog onCreateDialog(int id) {
switch (id) {
case progress_bar_type: // we set this to 0
pDialog = new ProgressDialog(this);
pDialog.setMessage("Downloading file. Please wait...");
pDialog.setIndeterminate(false);
pDialog.setMax(100);
pDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
pDialog.setCancelable(true);
pDialog.show();
return pDialog;
default:
return null;
}
}
/**
* Background Async Task to download file
* */
class DownloadFileFromURL extends AsyncTask<String, String, String> {
/**
* Before starting background thread
* Show Progress Bar Dialog
* */
@Override
protected void onPreExecute() {
super.onPreExecute();
showDialog(progress_bar_type);
}
/**
* Downloading file in background thread
* */
@Override
protected String doInBackground(String... f_url) {
int count;
try {
URL url = new URL(f_url[0]);
URLConnection conection = url.openConnection();
conection.connect();
// this will be useful so that you can show a tipical 0-100% progress bar
int lenghtOfFile = conection.getContentLength();
// download the file
InputStream input = new BufferedInputStream(url.openStream(), 8192);
// Output stream
OutputStream output = new FileOutputStream("/sdcard/helmi_1.mp3");
byte data[] = new byte[1024];
long total = 0;
while ((count = input.read(data)) != -1) {
total += count;
// publishing the progress....
// After this onProgressUpdate will be called
publishProgress(""+(int)((total*100)/lenghtOfFile));
// writing data to file
output.write(data, 0, count);
}
// flushing output
output.flush();
// closing streams
output.close();
input.close();
} catch (Exception e) {
Log.e("Error: ", e.getMessage());
}
return null;
}
/**
* Updating progress bar
* */
protected void onProgressUpdate(String... progress) {
// setting progress percentage
pDialog.setProgress(Integer.parseInt(progress[0]));
}
/**
* After completing background task
* Dismiss the progress dialog
* **/
@Override
protected void onPostExecute(String file_url) {
// dismiss the dialog after the file was downloaded
dismissDialog(progress_bar_type);
// Displaying downloaded image into image view
// Reading image path from sdcard
String imagePath = Environment.getExternalStorageDirectory().toString() + "/helmi_1.mp3";
// setting downloaded into image view
my_image.setImageDrawable(Drawable.createFromPath(imagePath));
}
}
}
Create main.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<!-- Download Button -->
<Button android:id="@+id/btnProgressBar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Download File with Progress Bar"
android:layout_marginTop="50dip"/>
<!-- Image view to show image after downloading -->
<ImageView android:id="@+id/my_image"
android:layout_width="fill_parent"
android:layout_height="wrap_content"/>
</LinearLayout>
Need to add AndroidManifest.xml permission as,
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
Hope it should helpful for you. Please try and let me know. Thanks
回答2:
Go through the links below which will guide you on how to implement PorgressBar in Android.
Android Progress Bar Tutorial
Infinite Progress Bar
Progress Dialog Example
Hope this is sufficient for you.
来源：https://stackoverflow.com/questions/21249286/android-use-progressbar-for-the-audio