Android 从视频列表中添加位图图像
我试着制作一个视频列表,一切正常,列表显示出来,你可以在videoview中看到。但是Android 从视频列表中添加位图图像,android,listview,bitmap,Android,Listview,Bitmap,我试着制作一个视频列表,一切正常,列表显示出来,你可以在videoview中看到。但是 1) 如何在视频列表中添加位图图像? 2) 如何使用Gridview更改ListView 多谢各位 视频扫描代码: public class VideoScan extends AppCompatActivity{ private Cursor videocursor; private int video_column_index; ListView videolist; i
1) 如何在视频列表中添加位图图像? 2) 如何使用Gridview更改ListView 多谢各位 视频扫描代码:
public class VideoScan extends AppCompatActivity{
private Cursor videocursor;
private int video_column_index;
ListView videolist;
int count;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_video_scan);
init_phone_video_grid();
}
private void init_phone_video_grid() {
System.gc();
String[] proj = { MediaStore.Video.Media._ID,
MediaStore.Video.Media.DATA,
MediaStore.Video.Media.DISPLAY_NAME,
MediaStore.Video.Media.SIZE };
videocursor = getContentResolver().query(MediaStore.Video.Media.EXTERNAL_CONTENT_URI,
proj, null, null, null);
count = videocursor.getCount();
videolist = (ListView) findViewById(R.id.PhoneVideoList);
videolist.setAdapter(new VideoAdapter(getApplicationContext()));
videolist.setOnItemClickListener(videogridlistener);
}
private AdapterView.OnItemClickListener videogridlistener = new AdapterView.OnItemClickListener() {
public void onItemClick(AdapterView parent, View v, int position,
long id) {
System.gc();
video_column_index = videocursor
.getColumnIndexOrThrow(MediaStore.Video.Media.DATA);
videocursor.moveToPosition(position);
String filename = videocursor.getString(video_column_index);
Intent intent = new Intent(VideoScan.this, ViewVideo.class);
intent.putExtra("videofilename", filename);
startActivity(intent);
}
};
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 position;
}
public long getItemId(int position) {
return position;
}
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);
video_column_index = videocursor
.getColumnIndexOrThrow(MediaStore.Video.Media.SIZE);
videocursor.moveToPosition(position);
id += " Size(KB):" + videocursor.getString(video_column_index);
tv.setText(id);
} else
tv = (TextView) convertView;
return tv;
}
}
xml
我修改了这个s,现在就走。感谢@commonware的建议。“如何在视频列表中添加位图图像?”--使用图像加载库。在中,我使用的是通用图像加载器。这个示例有很多错误,这些示例都是可用的。非常感谢。
<ListView
android:id="@+id/PhoneVideoList"
android:layout_width="fill_parent"
android:layout_height="fill_parent"/>