با درود.کدهای برنامه را به شکل زیر درآوردم.ولی هنوز هم آیتم های لیست ویو کار نمیکند.فک میکنم از لحاظ فنی مشکل دارد.یک نگاهی بیاندازید.کلا یک کلاس جاوا و2 xml ذارد که paste کرده ام.
کد پیاچپی:
package com.kelidetan.customlistview;
import java.util.ArrayList;
import android.app.ListActivity;
import android.content.Context;
import android.content.Intent;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.os.Handler;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.SeekBar;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.SeekBar.OnSeekBarChangeListener;
public class MainActivity extends ListActivity {
MediaPlayer mediaPlayer;
SeekBar seek_bar;
Button play_button, pause_button;
Handler seekHandler = new Handler();
public ListView lv;
int [] music={R.raw.abc,R.raw.asd,R.raw.asx,R.raw.my_file};
public String number_of_keys;
public String[] my_items = {"key_1",
"key_2",
"key_3",
"key_4",
"key_5",
"key_6",
"key_7",
"key_8",
"key_9",
"key_10",
"key_11",
"key_12",
"key_13",
"key_14",
"key_15",
"key_16",
"key_17",
"key_18",
"key_19",
"key_20"
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
setListAdapter(new MyAdapter(this,
android.R.layout.simple_list_item_1,
R.id.textView1,
my_items));
lv = getListView();
lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, final View view,
int position, long id) {
mediaPlayer=MediaPlayer.create(getApplicationContext(), music[position]);
mediaPlayer.start();
}
});
}
private class MyAdapter extends ArrayAdapter<String>{
public MyAdapter(Context context, int resource, int textViewResourceId,
String[] strings) {
super(context, resource, textViewResourceId, strings);
// TODO Auto-generated constructor stub
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View row = inflater.inflate(R.layout.sot, parent, false);
String stringName = "string_key_" + String.valueOf(position+1);
int string_res_ID = getResources().getIdentifier(stringName,"string",getPackageName());
String my_string = getResources().getString(string_res_ID);
TextView tv = (TextView) row.findViewById(R.id.textView1);
tv.setText(my_string);
seek_bar = (SeekBar) row.findViewById(R.id.seek_bar);
play_button = (Button) row.findViewById(R.id.play_button);
pause_button = (Button) row.findViewById(R.id.pause_button);
seek_bar.setMax(mediaPlayer.getDuration());
seekUpdation();
return row;
}
}
Runnable run = new Runnable() {
@Override
public void run() {
seekUpdation();
}
};
public void seekUpdation() {
seek_bar.setProgress(mediaPlayer.getCurrentPosition());
seekHandler.postDelayed(run, 1000);
seek_bar.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {
@Override
public void onStopTrackingTouch(SeekBar seek_bar) {
// TODO Auto-generated method stub
}
@Override
public void onStartTrackingTouch(SeekBar seek_bar) {
// TODO Auto-generated method stub
}
@Override
public void onProgressChanged(SeekBar seek_bar, int progress, boolean fromUser) {
if(fromUser){
mediaPlayer.seekTo(progress);
seek_bar.setProgress(progress);
}
}
});
}
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
if(fromUser){
mediaPlayer.seekTo(progress);
seekBar.setProgress(progress);
}
}
@Override
public void onBackPressed() {
mediaPlayer.stop();
finish();
}
}
کد پیاچپی:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
>
<SeekBar
android:id="@+id/seek_bar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/play_button"
android:layout_alignParentTop="true"
android:layout_marginTop="27dp" />
<Button
android:id="@+id/play_button"
android:layout_width="120dp"
android:layout_height="60dp"
android:layout_alignParentLeft="true"
android:layout_below="@+id/seek_bar"
android:layout_marginLeft="16dp"
android:layout_marginTop="19dp"
android:gravity="center"
android:text="Play" />
<Button
android:id="@+id/pause_button"
android:layout_width="120dp"
android:layout_height="60dp"
android:layout_alignBaseline="@+id/play_button"
android:layout_alignBottom="@+id/play_button"
android:layout_alignRight="@+id/seek_bar"
android:text="Pause" />
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/play_button"
android:layout_centerHorizontal="true"
android:layout_marginTop="24dp"
android:text="TextView" />
</RelativeLayout>
<?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:background="@drawable/background"
android:orientation="vertical" >
<ListView
android:id="@android:id/list"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
</LinearLayout>
