真的需要帮助 - 如何将视频附加到电子邮件? [2个新问题]
[更新2]:您好,
在仍然尝试将视频附加到电子邮件后,我认为(虽然不确定!)我离我的目标更近了一点,但我发现了两个问题...
问题 1:文件名无法正确显示:我试图为我点击的视频的名称祝酒,看看如何获取该名称。这就是我所做的...
vGrid.setOnItemClickListener(new OnItemClickListener() {
@Override // click on item and open options menu
public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
String [] proj={MediaStore.Video.Media.DATA};
videocursor = managedQuery( MediaStore.Video.Media.EXTERNAL_CONTENT_URI, proj, null,null,null);
video_column_index = videocursor.getColumnIndexOrThrow(MediaStore.Video.Media.DATA);
videocursor.moveToPosition((int) vGrid.getSelectedItemId());
// And here we get the filename
String filename = videocursor.getString(video_column_index);
Toast.makeText(ShareGalleryView.this, filename, Toast.LENGTH_SHORT).show();
openOptionsMenu(); //Opens Options Menu by clicking on an item
}
});
...但是我得到的不是仅显示文件名 sdcard/filename.mp4,所以我的第一个问题是如何摆脱“sdcard/”部分,因为如果我使用
videocursor.getString(video_column_index)
在
i.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(new File(Environment.getExternalStorageDirectory(),videocursor.getString(video_column_index))));
中将视频附加到邮件中,我得到以下 Logcat 输出:
07-18 18:53:47.518: ERROR/Mms/media(179): java.io.FileNotFoundException: /sdcard/sdcard/Video0004.mp4
那是问题 1...现在是问题 2
[问题 2] 我还发现,无论单击哪个按钮,文件名输出始终相同,并且仅显示“sdcard/Video0004.mp4” ,所以当我单击 Video0010 时,它还会显示“sdcard/Video0004.mp4”,因此我的第二个问题是如何确保在我的代码中显示单击的项目并附加到电子邮件,并且始终是第一个视频。
请,请帮助我...这真的让我很困惑...我现在不知道如何解决这些问题。
我将在下面发布完整的代码...谢谢
package com.mobilevideoeditor.moved;
import java.io.File;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.AdapterView.OnItemClickListener;
public class ShareGalleryView extends Activity {
private Cursor videocursor;
private int video_column_index;
GridView vGrid;
int count;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.videogrid);
//create new Grid View
vGrid=(GridView) findViewById(R.id.vgrid);
registerForContextMenu(vGrid);
vGrid.setAdapter(new VideoAdapter(this));
init_phone_video_grid();
vGrid.setOnItemClickListener(new OnItemClickListener() {
@Override // click on item and open options menu
public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
String [] proj={MediaStore.Video.Media.DATA};
videocursor = managedQuery( MediaStore.Video.Media.EXTERNAL_CONTENT_URI, proj, null,null,null);
video_column_index = videocursor.getColumnIndexOrThrow(MediaStore.Video.Media.DATA);
videocursor.moveToPosition((int) vGrid.getSelectedItemId());
// And here we get the filename
String filename = videocursor.getString(video_column_index);
Toast.makeText(ShareGalleryView.this, filename, Toast.LENGTH_SHORT).show();
openOptionsMenu(); //Opens Options Menu by clicking on an item
}
});
}
private void init_phone_video_grid() {
System.gc();
String[] proj = {
MediaStore.Video.Media._ID,
MediaStore.Video.Media.DISPLAY_NAME,
MediaStore.Video.Media.DATA
};
videocursor = managedQuery(MediaStore.Video.Media.EXTERNAL_CONTENT_URI, proj, null, null, null);
count = videocursor.getCount();
GridView vGrid=(GridView) findViewById(R.id.vgrid);
vGrid.setAdapter(new VideoAdapter(this));
}
@Override //creates options menu with menu-items
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.menu_gallery_share, menu);
return super.onCreateOptionsMenu(menu);
}
@Override //what happens when a menu item is clicked
public boolean onOptionsItemSelected (MenuItem item){
try{
//Facebook
if (item.getItemId() == R.id.menu_facebook)
{
//TODO open fb
new AlertDialog.Builder(this)
.setTitle("No Service")
.setMessage("Sorry, Facebook is not supported yet!")
.setNeutralButton("Close", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
}}).show();
return true;
}
//YouTube
else if (item.getItemId() == R.id.menu_youtube)
{
//TODO open YouTube
new AlertDialog.Builder(this)
.setTitle("No Service")
.setMessage("Sorry, YouTube is not supported yet!")
.setNeutralButton("Close", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
}}).show();
return true;
}
else if (item.getItemId() == R.id.menu_email)
{
Intent i = new Intent(Intent.ACTION_SEND);
i.setType("text/plain");
i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
i.setType("video/mp4");
i.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(new File(Environment.getExternalStorageDirectory(),videocursor.getString(video_column_index))));
startActivity(i);
return true;
}
else if (item.getItemId() == R.id.menu_bluetooth)
{
// TODO send via bluetooth
new AlertDialog.Builder(this)
.setTitle("No Service")
.setMessage("Sorry, Bluetooth is not supported yet!")
.setNeutralButton("Close", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
}}).show();
return true;
}
}
catch(Exception e)
{
e.printStackTrace();
}
return super.onContextItemSelected(item);
}
public class VideoAdapter extends BaseAdapter {
private Context vContext;
public VideoAdapter(Context c) {
vContext = c;
}
public int getCount() {
return count;
}
public Object getItem(int position) {
return null;
}
public long getItemId(int position) {
return 0;
}
// create a new ImageView for each item referenced by the Adapter
public View getView(int position, View convertView, ViewGroup parent) {
System.gc();
TextView tv = new TextView(vContext.getApplicationContext());
String id = null;
if (convertView == null) {
video_column_index =
videocursor.getColumnIndexOrThrow(MediaStore.Video.Media.DISPLAY_NAME);
videocursor.moveToPosition(position);
id = videocursor.getString(video_column_index);
tv.setText(id);
} else
tv = (TextView) convertView;
return tv;
}
}
}
大家好,
我正在开发一个视频应用程序,您可以在其中单击 SD 卡中的视频。此点击事件打开一个菜单(我使用了选项菜单),为用户提供不同的共享选项,例如电子邮件、蓝牙等。到目前为止,这部分工作正常...我现在想做的是,当用户选择时“电子邮件”应用程序应该通过意图打开手机的电子邮件应用程序(这也可以正常工作),并且应该直接将他之前单击的视频附加到新电子邮件中。
[更新] 最后一部分是,我陷入困境,因为我不知道如何获取单击打开图像的图像文件名。这是我的代码中出现问题的部分(请参阅“不知道要在这里放置什么”)
[UPDATE 2]: Hi there again,
after still trying to attach a video to an email, I think (not sure though!) that I am a little closer to my goal, but I discovered two problems...
PROBLEM 1: FILENAME DOESN'T SHOW PROPERLY: what I was trying was to toast the name of the video I clicked on to see how I can get the name. This is what I have done...
vGrid.setOnItemClickListener(new OnItemClickListener() {
@Override // click on item and open options menu
public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
String [] proj={MediaStore.Video.Media.DATA};
videocursor = managedQuery( MediaStore.Video.Media.EXTERNAL_CONTENT_URI, proj, null,null,null);
video_column_index = videocursor.getColumnIndexOrThrow(MediaStore.Video.Media.DATA);
videocursor.moveToPosition((int) vGrid.getSelectedItemId());
// And here we get the filename
String filename = videocursor.getString(video_column_index);
Toast.makeText(ShareGalleryView.this, filename, Toast.LENGTH_SHORT).show();
openOptionsMenu(); //Opens Options Menu by clicking on an item
}
});
...but instead of only displaying the filename I get sdcard/filename.mp4, so my first question is how to get rid of the "sdcard/" part because if I use
videocursor.getString(video_column_index)
in
i.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(new File(Environment.getExternalStorageDirectory(),videocursor.getString(video_column_index))));
for attaching the video to the mail, I get the following Logcat output:
07-18 18:53:47.518: ERROR/Mms/media(179): java.io.FileNotFoundException: /sdcard/sdcard/Video0004.mp4
That was problem 1...now Problem 2
[PROBLEM 2] I also discovered that no matter on which button I click the filename output is always the same and only shows the "sdcard/Video0004.mp4", so when I click on Video0010 it also shows "sdcard/Video0004.mp4", thus my second problem is how do I make sure in my code that the item that was clicked on is shown and also attached to the email and always the first video.
Please, please, help me...This is really confusing me...and I have no Idea right now, how to solve these problems.
I will post the entire code below...Thank you
package com.mobilevideoeditor.moved;
import java.io.File;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.AdapterView.OnItemClickListener;
public class ShareGalleryView extends Activity {
private Cursor videocursor;
private int video_column_index;
GridView vGrid;
int count;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.videogrid);
//create new Grid View
vGrid=(GridView) findViewById(R.id.vgrid);
registerForContextMenu(vGrid);
vGrid.setAdapter(new VideoAdapter(this));
init_phone_video_grid();
vGrid.setOnItemClickListener(new OnItemClickListener() {
@Override // click on item and open options menu
public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
String [] proj={MediaStore.Video.Media.DATA};
videocursor = managedQuery( MediaStore.Video.Media.EXTERNAL_CONTENT_URI, proj, null,null,null);
video_column_index = videocursor.getColumnIndexOrThrow(MediaStore.Video.Media.DATA);
videocursor.moveToPosition((int) vGrid.getSelectedItemId());
// And here we get the filename
String filename = videocursor.getString(video_column_index);
Toast.makeText(ShareGalleryView.this, filename, Toast.LENGTH_SHORT).show();
openOptionsMenu(); //Opens Options Menu by clicking on an item
}
});
}
private void init_phone_video_grid() {
System.gc();
String[] proj = {
MediaStore.Video.Media._ID,
MediaStore.Video.Media.DISPLAY_NAME,
MediaStore.Video.Media.DATA
};
videocursor = managedQuery(MediaStore.Video.Media.EXTERNAL_CONTENT_URI, proj, null, null, null);
count = videocursor.getCount();
GridView vGrid=(GridView) findViewById(R.id.vgrid);
vGrid.setAdapter(new VideoAdapter(this));
}
@Override //creates options menu with menu-items
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.menu_gallery_share, menu);
return super.onCreateOptionsMenu(menu);
}
@Override //what happens when a menu item is clicked
public boolean onOptionsItemSelected (MenuItem item){
try{
//Facebook
if (item.getItemId() == R.id.menu_facebook)
{
//TODO open fb
new AlertDialog.Builder(this)
.setTitle("No Service")
.setMessage("Sorry, Facebook is not supported yet!")
.setNeutralButton("Close", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
}}).show();
return true;
}
//YouTube
else if (item.getItemId() == R.id.menu_youtube)
{
//TODO open YouTube
new AlertDialog.Builder(this)
.setTitle("No Service")
.setMessage("Sorry, YouTube is not supported yet!")
.setNeutralButton("Close", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
}}).show();
return true;
}
else if (item.getItemId() == R.id.menu_email)
{
Intent i = new Intent(Intent.ACTION_SEND);
i.setType("text/plain");
i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
i.setType("video/mp4");
i.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(new File(Environment.getExternalStorageDirectory(),videocursor.getString(video_column_index))));
startActivity(i);
return true;
}
else if (item.getItemId() == R.id.menu_bluetooth)
{
// TODO send via bluetooth
new AlertDialog.Builder(this)
.setTitle("No Service")
.setMessage("Sorry, Bluetooth is not supported yet!")
.setNeutralButton("Close", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
}}).show();
return true;
}
}
catch(Exception e)
{
e.printStackTrace();
}
return super.onContextItemSelected(item);
}
public class VideoAdapter extends BaseAdapter {
private Context vContext;
public VideoAdapter(Context c) {
vContext = c;
}
public int getCount() {
return count;
}
public Object getItem(int position) {
return null;
}
public long getItemId(int position) {
return 0;
}
// create a new ImageView for each item referenced by the Adapter
public View getView(int position, View convertView, ViewGroup parent) {
System.gc();
TextView tv = new TextView(vContext.getApplicationContext());
String id = null;
if (convertView == null) {
video_column_index =
videocursor.getColumnIndexOrThrow(MediaStore.Video.Media.DISPLAY_NAME);
videocursor.moveToPosition(position);
id = videocursor.getString(video_column_index);
tv.setText(id);
} else
tv = (TextView) convertView;
return tv;
}
}
}
Hi everyone,
I am working on a Video App, where you can click on a video from the sdcard. This click event opens a menu (I used a options menu) that provides the user with different sharing options, e.g. email, bluetooth etc. This part works fine so far... What I am now trying to do is, when the user chooses "email" the app should open the email app of the phone via an intent (this also works fine) and should directly attach the video he clicked before to the new email .
[UPDATE] The last part is, where I am stuck because I don't know how to get the image filename that was clicked to open the image. This is the part in my code, where I got the problem (see "DON'T KNOW WHAT TO PUT HERE")
如果你对这篇内容有疑问,欢迎到本站社区发帖提问 参与讨论,获取更多帮助,或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱,如果其他用户或者作者回复了您的评论,将不能在第一时间通知您!
发布评论
评论(1)
您没有跟踪哪个视频 ID 被点击。
获得该信息后,您(大概)可以通过查询
ContentProvider
获取视频的路径(就像在VideoAdapter
中所做的那样)。或者,更简单 - 因为您已经在查询MediaStore.Video.Media.DATA
- 使用convertView.setTag()
将 URL 附加到视图。您可以在
onItemClick
调用期间将其存储在本地变量中 — 通过调用String uri = (String) v.getTag()
应该可以直接使用 URI。一些进一步的注意事项:
System.gc()
,尤其是不要在getView()
方法中。这将导致大量不必要的减速。vContext.getApplicationContext()
;只需使用vContext
。我还会查看 CursorAdapter,而不必自己执行光标操作(将光标移动到正确的位置等)。
You're not keeping track of which video ID is being clicked on.
Once you have that, you can (presumably) get the path to the video by querying the
ContentProvider
(like you do inVideoAdapter
). Or, simpler — since you're already querying forMediaStore.Video.Media.DATA
— attach the URL to the view withconvertView.setTag()
.You could store this in a local variable during the
onItemClick
call — the URI should be available directly by callingString uri = (String) v.getTag()
.Some further notes:
System.gc()
, especially not in agetView()
method. That will cause a huge number of unnecessary slowdowns.vContext.getApplicationContext()
; just usevContext
.getView
should look more like below:I would also look at CursorAdapter, rather than having to do cursor stuff yourself (moving the cursor to the right position etc.).