۱۳۹۴/۰۴/۲۶, ۰۴:۲۴ ب.ظ
من viewpager دارم که اطلاعاتش رو از آرایه ی مشخص شده میگیره . حالا من چه طور میتونم بجای اینکه داده ها را از array بگیره,از json بگیره!؟ لطفا کمک کنید...
ینی می خوام اطلاعات رو از http://myurl.ir/json بگیره
این کد هاش:
و اینم adaper
ینی می خوام اطلاعات رو از http://myurl.ir/json بگیره
این کد هاش:
کد:
public class MainActivity extends Activity {
// Declare Variables
ViewPager viewPager;
PagerAdapter adapter;
String[] rank;
String[] country;
String[] population;
int[] flag;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Get the view from viewpager_main.xml
setContentView(R.layout.viewpager_main);
// Generate sample data
rank = new String[] { "1", "2", "3", "4", "5", "6", "7", "8", "9", "10" };
country = new String[] { "China", "India", "United States",
"Indonesia", "Brazil", "Pakistan", "Nigeria", "Bangladesh",
"Russia", "Japan" };
population = new String[] { "1,354,040,000", "1,210,193,422",
"315,761,000", "237,641,326", "193,946,886", "182,912,000",
"170,901,000", "152,518,015", "143,369,806", "127,360,000" };
flag = new int[] { R.drawable.china, R.drawable.india,
R.drawable.unitedstates, R.drawable.indonesia,
R.drawable.brazil, R.drawable.pakistan, R.drawable.nigeria,
R.drawable.bangladesh, R.drawable.russia, R.drawable.japan };
// Locate the ViewPager in viewpager_main.xml
viewPager = (ViewPager) findViewById(R.id.pager);
// Pass results to ViewPagerAdapter Class
adapter = new ViewPagerAdapter(MainActivity.this, rank, country, population, flag);
// Binds the Adapter to the ViewPager
viewPager.setAdapter(adapter);
}
}
کد:
public class ViewPagerAdapter extends PagerAdapter {
// Declare Variables
Context context;
String[] rank;
String[] country;
String[] population;
int[] flag;
LayoutInflater inflater;
public ViewPagerAdapter(Context context, String[] rank, String[] country,
String[] population, int[] flag) {
this.context = context;
this.rank = rank;
this.country = country;
this.population = population;
this.flag = flag;
}
@Override
public int getCount() {
return rank.length;
}
@Override
public boolean isViewFromObject(View view, Object object) {
return view == ((RelativeLayout) object);
}
@Override
public Object instantiateItem(ViewGroup container, int position) {
// Declare Variables
TextView txtrank;
TextView txtcountry;
TextView txtpopulation;
ImageView imgflag;
inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View itemView = inflater.inflate(R.layout.viewpager_item, container,
false);
// Locate the TextViews in viewpager_item.xml
txtrank = (TextView) itemView.findViewById(R.id.rank);
txtcountry = (TextView) itemView.findViewById(R.id.country);
txtpopulation = (TextView) itemView.findViewById(R.id.population);
// Capture position and set to the TextViews
txtrank.setText(rank[position]);
txtcountry.setText(country[position]);
txtpopulation.setText(population[position]);
// Locate the ImageView in viewpager_item.xml
imgflag = (ImageView) itemView.findViewById(R.id.flag);
// Capture position and set to the ImageView
imgflag.setImageResource(flag[position]);
// Add viewpager_item.xml to ViewPager
((ViewPager) container).addView(itemView);
return itemView;
}
@Override
public void destroyItem(ViewGroup container, int position, Object object) {
// Remove viewpager_item.xml from ViewPager
((ViewPager) container).removeView((RelativeLayout) object);
}
}