Start Intent in Adapter

Question

I want to start a new activity from this base adapter.

public class EfficientAdapter extends BaseAdapter {

    private Activity activity;
    private ArrayList         


        

Answer 1

Set an intent for the class u need to open.In manifest file . Eg:

<activity android:name=".openingclass"
android:label="@string/app_name">
 <intent-filter>
 <action android:name="android.intent.action.OPEN" />
 <category android:name="android.intent.category.DEFAULT" />
 </intent-filter>
 </activity>

Then

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
           Intent i=new Intent("android.intent.action.OPEN");
           StartActivity(i);
                  }

Answer 2

you have passed context of activity in constructor so you can also use;

activity.startActivity(new Intent(activity, NVirementEmmeteur.class));

---

check here is sample code you get idea what to do:

setadapter like : adapter = new MyArrayAdapter(MainActivity.this, COUNTRIES);

adapter code:

package com.example.testapp;

import com.example.main.util.testActivity;

import android.content.Context;
import android.content.Intent;
import android.text.Html;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;

class MyArrayAdapter extends BaseAdapter {

    private LayoutInflater mInflater;
    private Context mcon;
    private String[] COUNTRIES_;

    public MyArrayAdapter(Context con, String[] countries) {
        // TODO Auto-generated constructor stub
        mcon = con;
        COUNTRIES_ = countries;
        mInflater = LayoutInflater.from(con);
    }

    @Override
    public int getCount() {
        // TODO Auto-generated method stub
        return COUNTRIES_.length;
    }

    @Override
    public Object getItem(int position) {
        // TODO Auto-generated method stub
        return position;
    }

    @Override
    public long getItemId(int position) {
        // TODO Auto-generated method stub
        return position;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        // TODO Auto-generated method stub
        final ListContent holder;
        View v = convertView;
        if (v == null) {
            v = mInflater.inflate(R.layout.my_spinner_style, null);
            holder = new ListContent();
            holder.line = (LinearLayout) v.findViewById(R.id.line_);
            holder.name = (TextView) v.findViewById(R.id.textView1);
            holder.name1 = (TextView) v.findViewById(R.id.textView2);
            holder.name2 = (ImageView) v.findViewById(R.id.imageView1);

            v.setTag(holder);
        } else {

            holder = (ListContent) v.getTag();
        }

        holder.name.setText("" + Html.fromHtml("" + COUNTRIES_[position]));
        holder.name1.setText("" + Html.fromHtml("" + COUNTRIES_[position]));

        holder.line.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub

                mcon.startActivity(new Intent(mcon, testActivity.class));
            }
        });

        return v;
    }

}

class ListContent {

    TextView name;
    TextView name1;
    ImageView name2;
    LinearLayout line;

}

---

Edited:

if your are use this constructor: then list.setadapter(new EfficientAdapter(myactivity.this));

public EfficientAdapter(Context context) {
          this.context = context;     
     }

then use : context.startActivity(new Intent(context, NVirementEmmeteur.class));

---

if you use this construdtor list.setadapter(new EfficientAdapter(myactivity.this, ComptePostarray));

public EfficientAdapter(Activity a, ArrayList<ComptePost> d) {

        activity = a;
        data = d;
        inflater = (LayoutInflater) activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    //  imageLoader = new ImageLoader(activity.getApplicationContext());
        imageLoader=new ImageLoader(activity.getApplicationContext());
    }

then use activity.startActivity(new Intent(activity, NVirementEmmeteur.class));

Hope you understud....

Answer 3

Replace onClick method with this it may work I didn't tried:

@Override
public void onClick(View v) {    
    v.getContext().startActivity(new Intent(v.getContext(), NVirementEmmeteur.class)); 
}

Answer 4

I faced this problem previously and tried all of the suggestions above, but the only one helped me to start an activity from an adopter was the solution proposed by @Md. Sajedul Karim.

I modified the code and used like this

Intent intent = new Intent(context, NesneTani.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(intent);

Answer 5

also you can do like, Here mContext is Your BaseAdpter Context Object

 Intent ieventreport = new Intent(mContext,Your.class);   
 mContext.startActivity(ieventreport);

change your Constructer like, initialise

 public EfficientAdapter(Context context, ArrayList<ComptePost> d){
}

Answer 6

Pass activity context from activity and use same context while calling Intent.

From activity:

yourview.setAdapter(new EfficientAdapter(this));

within adapter:

 private Context mContext;


  public EfficientAdapter(Context c) {
        mContext = c;

    }

Now use mContext to call Intent.

startActivity(new Intent(mContext, NVirementEmmeteur.class));