我创建了一个自定义arrayadapter，它使我从soundcloud请求“get”中获取元素列表，但是当我点击其中一个元素时，会给我这条消息：
D/ViewRootImpl: ViewPostImeInputStage ACTION_DOWN
这是我的代码：
活动
package com.giuseppemorra.domusic;
import android.content.ClipData;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.design.widget.NavigationView;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Adapter;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.AdapterView.OnItemClickListener;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import cz.msebera.android.httpclient.HttpResponse;
import cz.msebera.android.httpclient.NameValuePair;
import cz.msebera.android.httpclient.client.HttpClient;
import cz.msebera.android.httpclient.client.entity.UrlEncodedFormEntity;
import cz.msebera.android.httpclient.client.methods.HttpGet;
import cz.msebera.android.httpclient.client.methods.HttpPost;
import cz.msebera.android.httpclient.impl.client.DefaultHttpClient;
import cz.msebera.android.httpclient.impl.client.HttpClients;
import cz.msebera.android.httpclient.message.BasicNameValuePair;
import cz.msebera.android.httpclient.util.EntityUtils;
public class Second extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener{
Adapter adapter;
ListView lista;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.second);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.setDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
}
@Override
protected void onStart(){
super.onStart();
Bundle extras = getIntent().getExtras();
if (extras != null) {
String musica = extras.getString("musica");
String ric = musica;
new Mod().execute(ric);
}
}
@Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
return super.onOptionsItemSelected(item);
}
@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.nav_camera) {
// Handle the camera action
} else if (id == R.id.nav_gallery) {
} else if (id == R.id.nav_slideshow) {
} else if (id == R.id.nav_manage) {
} else if (id == R.id.nav_share) {
} else if (id == R.id.nav_send) {
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
private class Mod extends AsyncTask<String, Integer, String> {
protected String doInBackground(String... parametri) {
String par = Arrays.toString(parametri);
par = par.replace("[", "");
par = par.replace("]", "");
String[] risultati = par.split(",");
String musica = risultati[0];
Log.d("cell", musica);
HttpClient httpclient = HttpClients.createDefault();
HttpGet httppost = new HttpGet();
String gio = "";
try {
URI website = new URI("http://api.soundcloud.com/tracks/?client_id=4ee809712e980dfc07b9e8af6f42d434&limit=200&&q="+URLEncoder.encode(musica,"UTF-8"));
httppost.setURI(website);
HttpResponse response = httpclient.execute(httppost);
BufferedReader in = new BufferedReader(new InputStreamReader( response.getEntity().getContent()));
String line = in.readLine();
Log.d("Risposta dal server", line);
gio = line;
} catch (IOException | URISyntaxException b) {
b.printStackTrace();
b.printStackTrace();
}
return gio;
}
protected void onProgressUpdate(String... progress) {
}
protected void onPostExecute(String result) {
String str = result;
Log.d("new",str);
JSONArray jArrayObject;
try {
jArrayObject = new JSONArray(str);
String[] datiFin = new String[jArrayObject.length()];
String[] titleFin = new String[jArrayObject.length()];
String[] durataFin = new String[jArrayObject.length()];
String[] avatar_urlFin = new String[jArrayObject.length()];
for (int i = 0; i<jArrayObject.length(); i++) {
String stream = jArrayObject.getJSONObject(i).getString("stream_url").toString();
String id = jArrayObject.getJSONObject(i).getString("id").toString();
String title = jArrayObject.getJSONObject(i).getString("title").toString();
String durata = jArrayObject.getJSONObject(i).getString("duration").toString();
JSONObject jObj = new JSONObject(jArrayObject.getJSONObject(i).getString("user").toString());
String avatar_url = jObj.getString("avatar_url").toString();
datiFin[i] = stream.concat(",").concat(id);
titleFin[i] = title;
int minutes = (int) ((Integer.parseInt(durata) / (1000*60)) % 60);
String durataFinale = minutes+" Minuti";
durataFin[i] = durataFinale;
avatar_urlFin[i] = avatar_url;
}
lista = (ListView)findViewById(R.id.musica_lista);
lista.setFastScrollEnabled(true);
adapter = new com.giuseppemorra.domusic.Adapter(Second.this,titleFin,datiFin,durataFin,avatar_urlFin);
lista.setAdapter((ListAdapter) adapter);
lista.setOnItemClickListener(new OnItemClickListener(){
@SuppressWarnings("unchecked")
public void onItemClick(AdapterView<?> parent, View v, int position,long id) {
Log.d("ciao","ciao");
}
});
} catch (JSONException e) {
e.printStackTrace();
}
}
}
}
ArrayAdaptery：
package com.giuseppemorra.domusic;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import com.squareup.picasso.Picasso;
import org.w3c.dom.Text;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
public class Adapter extends ArrayAdapter<String> {
String[] titolo, dati, durata, avatar;
Context context;
Holder holder;
public Adapter(Context context, String[] titolo, String[] dati, String[] durata, String[] avatar) {
super(context, R.layout.lista_musica, titolo);
// TODO Auto-generated constructor stub
this.titolo = titolo;
this.avatar = avatar;
this.durata = durata;
this.dati = dati;
this.context = context;
}
public View getView(int position, View view, ViewGroup parent) {
if (view == null) {
holder = new Holder();
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = inflater.inflate(R.layout.lista_musica, null, true);
holder.titoloMod = (TextView) view.findViewById(R.id.titoloMusica);
holder.avatarMod = (ImageView) view.findViewById(R.id.immagieMusica);
holder.durataMod = (TextView) view.findViewById(R.id.durataMusica);
holder.contMod = (TextView) view.findViewById(R.id.contDati);
holder.titoloMod.setText(titolo[position]);
holder.durataMod.setText(durata[position]);
holder.contMod.setText(dati[position]);
Picasso.with(context).load(avatar[position]).into(holder.avatarMod);
view.setTag(holder);
} else {
holder = (Holder) view.getTag();
}
return view;
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return 0;
}
}
class Holder {
TextView titoloMod, durataMod, contMod;
ImageView avatarMod;
}
的ListView：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
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"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:context="com.giuseppemorra.domusic.Second"
tools:showIn="@layout/second_bar_main"
android:focusable="false"
android:clickable="false">
<ListView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="@+id/musica_lista"
android:scrollingCache="false"
android:smoothScrollbar="true"
android:clickable="true" />
</LinearLayout>
单项：
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="match_parent"
android:clickable="true" >
<ImageView
android:layout_width="50dp"
android:layout_height="50dp"
android:id="@+id/immagieMusica"
android:layout_margin="10dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="Medium Text"
android:id="@+id/titoloMusica"
android:layout_alignTop="@+id/immagieMusica"
android:layout_toEndOf="@+id/immagieMusica"
android:textSize="10dp"
android:textIsSelectable="false" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:text="Small Text"
android:id="@+id/durataMusica"
android:layout_alignBottom="@+id/immagieMusica"
android:layout_toEndOf="@+id/immagieMusica" />
<EditText
android:layout_width="0dp"
android:layout_height="0dp"
android:id="@+id/contDati"
android:layout_above="@+id/durataMusica"
android:layout_alignParentEnd="true" />
</RelativeLayout>
然后我会理解我错在哪里，以及如何执行qaundo功能，你点击其中一个列表元素