android 视频下载

android视频下载

1.效果图

2.加权限

[html] view plain copy

<uses-permission android:name="android.permission.INTERNET">uses-permission>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

3.直接上代码

package demo.cdy.com.myvitamiodemo;

import android.app.DownloadManager;

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.content.IntentFilter;

import android.net.Uri;

import android.os.Bundle;

import android.os.Environment;

import android.support.annotation.Nullable;

import android.support.v7.app.AppCompatActivity;

import android.view.View;

import android.widget.Button;

import android.widget.TextView;

public class DownLoadActivity extends AppCompatActivity {

private Button button;

private TextView mTextView;

private CompleteReceiver completeReceiver;

private DownloadManager downloadManager;

long reference;

@Override

protected void onCreate(@Nullable Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.layout_download);

button = (Button)findViewById(R.id.button);

mTextView = (TextView)findViewById(R.id.textView);

//下载任务

String serviceString = Context.DOWNLOAD_SERVICE;

//直接使用系统的下载管理器。是不是非常方便

downloadManager = (DownloadManager)getBaseContext().getSystemService(serviceString);

//下载

button.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

Uri uri = Uri.parse("http://www.midea.com/video/masvod/public/2015/02/28/20150228_14bcec18032_r1_800k.mp4");

DownloadManager.Request request =new DownloadManager.Request(uri);

//通知栏的标题

request.setTitle("视频下载");

//显示通知栏的说明

request.setDescription("测试的广告") ;

request.setVisibleInDownloadsUi(true ) ;

//下载到那个文件夹下，以及命名

request.setDestinationInExternalFilesDir(getApplicationContext(), Environment.DIRECTORY_DOWNLOADS ,"广告"+".mp4" );

//下载的唯一标识，可以用这个标识来控制这个下载的任务enqueue（）开始执行这个任务

reference = downloadManager.enqueue(request);

}

});

//注册下载的广播监听

completeReceiver =new CompleteReceiver();

/** 注册下载监听的广播 **/

completeReceiver =new CompleteReceiver();

IntentFilter filter =new IntentFilter();

filter.addAction(DownloadManager.ACTION_NOTIFICATION_CLICKED);

filter.addAction(DownloadManager.ACTION_DOWNLOAD_COMPLETE);

/** register download success broadcast **/

registerReceiver(completeReceiver,

filter);

}

//下载的状态广播接收

class CompleteReceiver extends BroadcastReceiver {

@Override

public void onReceive(Context context, Intent intent) {

//下载完成之后监听

String action = intent.getAction();

//下载完成的监听

if(action.equals(DownloadManager.ACTION_DOWNLOAD_COMPLETE)){

mTextView.setText("下载完成");

}

//点击通知栏，取消下载任务

if(action.equals(DownloadManager.ACTION_NOTIFICATION_CLICKED)){

downloadManager.remove((Long)reference) ;

}

4.写xml布局

android:layout_width="match_parent"

android:layout_height="match_parent">

android:text="下载"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:id="@+id/button"

android:layout_weight="1"/>

android:text="TextView"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:id="@+id/textView"

android:layout_weight="1"/>

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