您好我创建了一个媒体播放器。它显示视频缩略图的数量。如果我点击任何视频缩略图，视频将播放，同时/ mnt / sdcard / funny baby.3gb文件路径名也显示在此底部。我想隐藏它。有人可以帮助我吗？
源代码：
package videothumb.videothumb;
//import com.example.android.apis.R;
//import popupTest.popupTest.R;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.res.TypedArray;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.LinearGradient;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.os.Bundle;
import android.provider.MediaStore;
import android.view.Gravity;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.view.WindowManager;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.Gallery;
import android.widget.ImageView;
import android.widget.PopupWindow;
//import android.widget.ListView;
//import android.widget.TextView;
import android.widget.Toast;
import android.widget.AdapterView.OnItemClickListener;
import android.net.Uri;
//import android.view.Window;
//import android.view.WindowManager;
//import android.widget.GridView;
import android.graphics.Color;
//import android.view.MotionEvent;
//import android.view.View.OnTouchListener;
import android.graphics.Canvas;
import android.graphics.Bitmap.Config;
import android.graphics.Shader.TileMode;
import android.graphics.PorterDuff.Mode;
import android.graphics.Shader.TileMode;
import android.graphics.PorterDuffXfermode;
public class videothumb extends Activity
{
private final static Uri MEDIA_EXTERNAL_CONTENT_URI = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
private final static String _ID = MediaStore.Video.Media._ID;
private final static String MEDIA_DATA = MediaStore.Video.Media.DATA;
//flag for which one is used for images selection
private Gallery _gallery;
private Cursor _cursor;
private int _columnIndex;
private int[] _videosId;
private Uri _contentUri;
//private int video_column_index;
protected Context _context;
//PopupWindow pw = null;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
_context = getApplicationContext();
setContentView(R.layout.main);
//set GridView for gallery
_gallery = (Gallery) findViewById(R.id.videoGrdVw);
//set default as external/sdcard uri
_contentUri = MEDIA_EXTERNAL_CONTENT_URI;
//initialize the videos uri
//showToast(_contentUri.getPath());
initVideosId();
//set gallery adapter
setGalleryAdapter();
}
private void setGalleryAdapter() {
_gallery.setAdapter(new VideoGalleryAdapter(_context));
_gallery.setOnItemClickListener(videogridlistener);
}
private void initVideosId() {
try
{
//Here we set up a string array of the thumbnail ID column we want to get back
String [] proj={_ID};
// Now we create the cursor pointing to the external thumbnail store
_cursor = managedQuery(_contentUri,
proj, // Which columns to return
null, // WHERE clause; which rows to return (all rows)
null, // WHERE clause selection arguments (none)
null); // Order-by clause (ascending by name)
int count= _cursor.getCount();
System.out.println("total"+_cursor.getCount());
// We now get the column index of the thumbnail id
_columnIndex = _cursor.getColumnIndex(_ID);
//initialize
_videosId = new int[count];
//move position to first element
_cursor.moveToFirst();
for(int i=0;i<count;i++)
{
int id = _cursor.getInt(_columnIndex);
//
_videosId[i]= id;
//
_cursor.moveToNext();
//
}
}catch(Exception ex)
{
showToast(ex.getMessage().toString());
}
}
protected void showToast(String msg)
{
Toast.makeText(_context, msg, Toast.LENGTH_LONG).show();
}
private AdapterView.OnItemClickListener videogridlistener = new OnItemClickListener() {
public void onItemClick(AdapterView parent, View v, int position,long id) {
// Now we want to actually get the data location of the file
String [] proj={MEDIA_DATA};
// We request our cursor again
_cursor = managedQuery(_contentUri,
proj, // Which columns to return
null, // WHERE clause; which rows to return (all rows)
null, // WHERE clause selection arguments (none)
null);
//System.gc();
// video_column_index = _cursor.getColumnIndexOrThrow(MediaStore.Video.Media.DATA);
_columnIndex = _cursor.getColumnIndex(MEDIA_DATA);
// Lets move to the selected item in the cursor
_cursor.moveToPosition(position);
String filename = _cursor.getString(_columnIndex);
Intent intent = new Intent(videothumb.this, ViewVideo.class);
intent.putExtra("videofilename", filename);
startActivity(intent);
showToast(filename);
// Toast.makeText(videothumb.this, "" + position, Toast.LENGTH_SHORT).show();
}
};
private class VideoGalleryAdapter extends BaseAdapter
{
int mGalleryItemBackground;
public VideoGalleryAdapter(Context c)
{
_context = c;
TypedArray a = obtainStyledAttributes(R.styleable.Gallery1);
mGalleryItemBackground = a.getResourceId(
R.styleable.Gallery1_android_galleryItemBackground, 0);
a.recycle();
}
public int getCount()
{
return _videosId.length;
}
public Object getItem(int position)
{
return position;
}
public long getItemId(int position)
{
return position;
}
public View getView(int position, View convertView, ViewGroup parent)
{
ImageView imgVw= new ImageView(_context);
try
{
if(convertView!=null)
{
imgVw= (ImageView) convertView;
}
imgVw.setImageBitmap(getImage(_videosId[position]));
imgVw.setAdjustViewBounds(true);
//imgVw.setBackgroundColor(Color.WHITE);
imgVw.setLayoutParams(new Gallery.LayoutParams(650, 550));
imgVw.setPadding(1,1,1,1);
imgVw.setScaleType(ImageView.ScaleType.FIT_XY);
}
catch(Exception ex)
{
System.out.println("StartActivity:getView()-1 : ex " + ex.getClass() +", "+ ex.getMessage());
}
return imgVw;
}
// Create the thumbnail on the fly
private Bitmap getImage(int id) {
Bitmap thumb = MediaStore.Video.Thumbnails.getThumbnail(getContentResolver(),id, MediaStore.Video.Thumbnails.MICRO_KIND, null);
System.out.println("ff"+MediaStore.Video.Thumbnails.getThumbnail(getContentResolver(),id, MediaStore.Video.Thumbnails.MICRO_KIND, null));
return thumb;
}
}
}
答案 0 :(得分：1)
您确定代码中的行不是：
showToast(filename);
这显示一条文件名为
的邮件