如何通过edittext在列表视图中进行搜索? 重要的是我的json值,比如说,如果您搜索一个东西并且结果是第五个元素,但您的链接是零个元素,我该如何解决这个问题?通常我使用位置值来均衡我获得的标题和链接值从json开始,例如标题的位置为5,链接的位置为5,但是如果您使用edittext搜索,标题的位置将再次为5,但链接的位置为0。
public class makale extends AppCompatActivity {
ListView listviewMakale;
ArrayList a22 = new ArrayList();
private ArrayAdapter adapter;
private EditText ara;
String url = "https://";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.makale);
ActionBar actionBar = getSupportActionBar();
actionBar.setIcon(R.mipmap.ic_launcher);
actionBar.setDisplayShowHomeEnabled(true);
listviewMakale = (ListView)findViewById(R.id.listviewMakale);
//Makale Adı için request
StringRequest request = new StringRequest(url, new Response.Listener<String>() {
@Override
public void onResponse(String string) {
parseJsonData(string);
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError volleyError) {
Toast.makeText(getApplicationContext(), "Hata-Tekrar Deneyiniz!!", Toast.LENGTH_SHORT).show();
}
});
//linkler için request
StringRequest request2 = new StringRequest(url, new Response.Listener<String>() {
@Override
public void onResponse(String string) {
parseJsonDataLinks(string);
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError volleyError) {
Toast.makeText(getApplicationContext(), "Hata-Tekrar Deneyiniz!!", Toast.LENGTH_SHORT).show();
}
});
//baslık için
RequestQueue rQueue = Volley.newRequestQueue(makale.this);
rQueue.add(request);
//linkler için
RequestQueue rQueue2 = Volley.newRequestQueue(makale.this);
rQueue2.add(request2);
}
//baslik değerini çekiyoruz
void parseJsonData(String jsonString) {
try {
JSONObject object = new JSONObject(jsonString);
JSONArray linksArray = object.getJSONArray("makale");
ArrayList al = new ArrayList();
for(int i = 0; i < linksArray.length(); ++i) {
al.add(linksArray.getJSONObject(i).get("fullText"));
}
adapter = new ArrayAdapter(this,R.layout.activity_listview_2, al);
listviewMakale.setAdapter(adapter);
EditText ara=(EditText) findViewById(R.id.ara);
// ara.getBackground().mutate().setColorFilter(getResources().getColor(R.color.colorPrimary2), PorterDuff.Mode.SRC_ATOP);
listviewMakale.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
// Get the selected item text from ListView
String selectedItem = (String) parent.getItemAtPosition(position);
Toast.makeText(makale.this,selectedItem,Toast.LENGTH_SHORT).show();
final String linkler="https://"+a22.get(position);
AlertDialog.Builder builder = new AlertDialog.Builder(makale.this);
builder.setMessage("Pdf olarak indirmek istiyor musunuz ?");
builder.setNegativeButton("İPTAL", new DialogInterface.OnClickListener(){
public void onClick(DialogInterface dialog, int id) {
//İptal butonuna basılınca yapılacaklar.Sadece kapanması isteniyorsa boş bırak.
}
});
builder.setPositiveButton("TAMAM", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
//Tamam butonuna basılınca yapılacakları yaz
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.parse(linkler), "text/html");
startActivity(intent);
}
});
builder.show();
}
});//listview click son
ara.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {
}
@Override
public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
makale.this.adapter.getFilter().filter(charSequence);
}
@Override
public void afterTextChanged(Editable editable) {
}
});
} catch (JSONException e) {
e.printStackTrace();
}
}
//linklere erişiyoruz
void parseJsonDataLinks (String jsonString2) {
try {
JSONObject object2 = new JSONObject(jsonString2);
JSONArray linksArray2 = object2.getJSONArray("makale");
for(int j = 0; j < linksArray2.length(); ++j) {
a22.add(linksArray2.getJSONObject(j).get("link"));
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}