How to Pass Intent in Adapter Class

Start Intent in Adapter

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....

How to pass intent in adapter class

Change this

 Intent intent=new Intent(context,crunches.class);
            context.startActivity(intent);

v.getContext().startActivity(new Intent(v.getContext(), crunches.class));

Hope it helps.!

How to start Activity in adapter?

Just pass in the current Context to the Adapter constructor and store it as a field. Then inside the onClick you can use that context to call startActivity().

pseudo-code

public class MyAdapter extends Adapter {
     private Context context;

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

     public View getView(...){
         View v;
         v.setOnClickListener(new OnClickListener() {
             void onClick() {
                 context.startActivity(...);
             }
         });
     }
}

How to pass an intent from Adapter to Activity without intent.addFlags?

I learnt there no way to do it without adding flags.
But instead of this code,

holder.itemView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent intent = new Intent(context, Details.class);
                intent.putExtra("pid", pid);
                intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
                    context.startActivity(intent);
                }
            });


change it to this. problem solved !





holder.itemView.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    Intent intent = new Intent(context, Details.class);
                    intent.putExtra("pid", pid);
                    intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                    context.startActivity(intent);
                }
            });

Unable to use intent in adapter

let see:

((Activity)mContext).finish();

The log say mContext is kind of FilePickerDelegate. So check your Adapter init function. I think you pass context as "this", but "this" reference to FilePickerDelegate. So change it to YourActivity.this ( with activity) or getActivity( in fragment)

Start Intent from Adapter

Since you are receiving the context into the constructor of your Adapter:

public CustomAndroidGridViewAdapter(Context c,String[] string,int[] Imageid ) {
    mContext = c;
    this.Imageid = Imageid;
    this.string = string;
}

use this context to start the Intent, for example :

 Intent intent = new Intent(mContext, OtherActivity.class);
 mContext.startActivity(intent);