我正在与google place api json一起在listview中检索附近的酒店,我已经成功做到了,但是我也想单击listview itms中存在的按钮以转到google maps.list视图项从一个没有任何Java代码的布局资源文件,我应该如何处理该布局资源文件中按钮的onclick事件?
我试图单独创建一个活动来处理该布局资源文件的事件,但是该活动不起作用,它显示->
我的布局资源文件是->
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:padding="10dp"
android:id="@+id/linlayout"
android:layout_margin="5dp"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:orientation="vertical"
>
<ImageView
android:id="@+id/map"
android:src="@drawable/map"
android:layout_width="45dp"
android:layout_height="45dp"
android:layout_gravity="right"
/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Name : "
android:textSize="20sp"/>
<TextView
android:layout_marginLeft="10dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="value"
android:textSize="20sp"
android:id="@+id/nm"/>
</LinearLayout>
</LinearLayout>
和onclick Habdler Java代码是->
public class ListItem extends AppCompatActivity {
Double lat=22.2254,lang=53.2354;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.list_item);
LayoutInflater layoutInflater=(LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE);
final View vw=layoutInflater.inflate(R.layout.list_item,null);
final Context context=vw.getContext();
ImageView imgv=(ImageView)findViewById(R.id.map);
imgv.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View view) {
Log.i("ListItem","This Onclick worked ok");
Intent intent=new Intent(context,MapView.class);
intent.putExtra("lat",lat);
intent.putExtra("lang",lang);
startActivity(intent);
}
});
}
}
它不起作用..
请帮助我找到一种方法,以便如果我单击ID为“ map”的图像视图,它将带我进行另一项活动!
这是列表视图适配器->
public class hotelAdapter extends ArrayAdapter<Hotels> {
public hotelAdapter(@NonNull Context context, ArrayList<Hotels> hotelsList) {
super(context,0,hotelsList);
}
@NonNull
@Override
public View getView(int position, @Nullable View convertView, @NonNull ViewGroup parent) {
Hotels hotels=getItem(position);
Context context;
if(convertView==null){
convertView= LayoutInflater.from(getContext()).inflate(R.layout.list_item,parent,false);
}
// context=convertView.getContext();
TextView namevw=convertView.findViewById(R.id.nm);
TextView rtingvw=convertView.findViewById(R.id.rtng);
TextView adrsvw=convertView.findViewById(R.id.adrs);
namevw.setText(hotels.getName());
rtingvw.setText(hotels.getRating());
adrsvw.setText(hotels.getVicinity());
return convertView;
// return super.getView(position, convertView, parent);
}
}
和MainActivity.java->的OnCreate
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
listView=(ListView)findViewById(R.id.lvw);
Intent intent=getIntent();
LayoutInflater layoutInflater=(LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE);
final View vw=layoutInflater.inflate(R.layout.list_item,null);
ImageView imgv=(ImageView) vw.findViewById(R.id.map);
imgv.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Log.i("ListItem","This Onclick worked ok");
Toast.makeText(getApplicationContext(),"tHIS WORKED YEAH!",Toast.LENGTH_SHORT).show();
}
});
}
最佳答案
您好,您可以使用以下简单方法解决您的问题。
主要活动
hotelAdapter hotel;
ArrayList<Hotels> hotelsList;
ListView listView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
hotelsList=new ArrayList<>();
listView=(ListView)findViewById(R.id.lvw);
hotel = new hotelAdapter(MainActivity.this, hotelsList);
listView.setAdapter(hotel);
}
转接器类别
public class hotelAdapter extends ArrayAdapter<Hotels> {
Double lat = 22.2254, lang = 53.2354;
Context context=null;
public hotelAdapter(Context context, ArrayList<Hotels> hotelsList) {
super(context, 0, hotelsList);
}
@NonNull
@Override
public View getView(int position, View convertView, @NonNull ViewGroup parent) {
Hotels hotels = getItem(position);
if (convertView == null) {
convertView = LayoutInflater.from(getContext()).inflate(R.layout.list_item, parent, false);
}
context=convertView.getContext(); //ReEdited to make the code work
TextView namevw = (TextView) convertView.findViewById(R.id.nm);
TextView rtingvw =(TextView) convertView.findViewById(R.id.rtng);
TextView adrsvw =(TextView) convertView.findViewById(R.id.adrs);
ImageView map = (ImageView) convertView.findViewById(R.id.map); // edited
namevw.setText(hotels.getName());
rtingvw.setText(hotels.getRating());
adrsvw.setText(hotels.getVicinity());
map.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent = new Intent(context, MapView.class);
intent.putExtra("lat", lat);
intent.putExtra("lang", lang);
context.startActivity(intent);
}
});
return convertView;
// return super.getView(position, convertView, parent);
}
}