一般的なフレームワークのデモ
3238 ワード
public class MyApplication extends Application { public void onCreate() { DisplayImageOptions defaultDisplayImageOptions=new DisplayImageOptions .Builder() .cacheInMemory(true) .cacheOnDisk(true).build();
};
}
//////////////////////////////////////////////// public class MainActivity extends Activity { private Button button1; private ListView listView; private ArrayList list; private DisplayImageOptions displayImageOptions; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); listView = (ListView) findViewById(R.id.listView); displayImageOptions = new DisplayImageOptions.Builder() .showImageForEmptyUri(R.drawable.ic_launcher) .showImageOnFail(R.drawable.ic_launcher) .showImageOnLoading(R.drawable.ic_launcher) .cacheInMemory(true) .cacheOnDisc(true) .considerExifParams(true) .imageScaleType(ImageScaleType.EXACTLY_STRETCHED) .bitmapConfig(Bitmap.Config.RGB_565) .delayBeforeLoading(100) .resetViewBeforeLoading(true) .displayer(new FadeInBitmapDisplayer(100)).build();
} /////////////////////////////////////////////
ImageLoaderConfiguration imageLoaderConfiguration=new ImageLoaderConfiguration.Builder(getApplicationContext())
.defaultDisplayImageOptions(defaultDisplayImageOptions)
.diskCacheSize(50 * 1024 * 1024)
.memoryCache(new UsingFreqLimitedMemoryCache(5 * 1024 * 1024)).build();
ImageLoader.getInstance().init(imageLoaderConfiguration);
};
}
//////////////////////////////////////////////// public class MainActivity extends Activity { private Button button1; private ListView listView; private ArrayList list; private DisplayImageOptions displayImageOptions; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); listView = (ListView) findViewById(R.id.listView); displayImageOptions = new DisplayImageOptions.Builder() .showImageForEmptyUri(R.drawable.ic_launcher) .showImageOnFail(R.drawable.ic_launcher) .showImageOnLoading(R.drawable.ic_launcher) .cacheInMemory(true) .cacheOnDisc(true) .considerExifParams(true) .imageScaleType(ImageScaleType.EXACTLY_STRETCHED) .bitmapConfig(Bitmap.Config.RGB_565) .delayBeforeLoading(100) .resetViewBeforeLoading(true) .displayer(new FadeInBitmapDisplayer(100)).build();
}
public void getFile(View v){
HttpUtils httpUtils=new HttpUtils();
String path = "http://v.juhe.cn/weixin/query?key=0917c812f187b92e025c9b7c2d4e59b5&pno=2";
httpUtils.send(HttpMethod.GET, path, new RequestCallBack<String>() {
@Override
public void onFailure(HttpException arg0, String arg1) {
Toast.makeText(MainActivity.this, " !", 0).show();
}
@Override
public void onSuccess(ResponseInfo<String> arg0) {
String result = arg0.result;
Gson gson=new Gson();
News news = gson.fromJson(result, News.class);
list = news.result.list;
listView.setAdapter(new BaseAdapter() {
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ImageView imageView=new ImageView(MainActivity.this);
ImageLoader imageLoader=ImageLoader.getInstance();
imageLoader.displayImage(list.get(position).firstImg, imageView, displayImageOptions);
return imageView;
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return 0;
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return null;
}
@Override
public int getCount() {
return list.size();
}
});
}
});
}
} /////////////////////////////////////////////