COYG COYG - 4 months ago 46
Android Question

Cannot resolve method startActivity()

I'm new to the android development and having a bit of a problem changing activities. I am trying to change activities from within a method but I am getting the error

cannot resolve method startActivity
and on the parameter end the error
Cannot resolve constructor 'Intent (...)'
. I found a question here with the same sort of problem and tried to implement their replies into my program but no joy.

Here's the code:

public void open301(View view) {
startActivity(new Intent(CustomAdapter.this, ThreeZeroOne.class));
}


before looking at the replies from the question linked above the code looked like this with the same errors:

public void open301(View view) {
Intent openThree = new Intent(this,ThreeZeroOne.class);
startActivity(openThree);
}


Complete code:

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

public class CustomAdapter extends BaseAdapter {

String[] result;
Context context;
int[] imageId;

private static LayoutInflater inflater = null;

public CustomAdapter(selectGame SelectGame, String[] prgmNameList, int[] prgmImages) {
result = prgmNameList;
context = SelectGame;
this.imageId = prgmImages;
inflater = (LayoutInflater) context.getSystemService(Context.
LAYOUT_INFLATER_SERVICE);
}

@Override
public int getCount() {
return result.length;
}

@Override
public Object getItem(int position) {
return position;
}

@Override
public long getItemId(int position) {
return position;
}

public class Holder {
TextView tv;
ImageView img;
}

@Override
public View getView(final int position, View convertView, ViewGroup parent) {
Holder holder = new Holder();
View rowView;
rowView = inflater.inflate(R.layout.game_selection, null);
holder.tv = (TextView) rowView.findViewById(R.id.txt);
holder.img = (ImageView) rowView.findViewById(R.id.img);
holder.tv.setText(result[position]);
holder.img.setImageResource(imageId[position]);
rowView.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(context, "Beginning game " + result[position], Toast.LENGTH_SHORT).show();

}
});
return rowView;
}

public void open301(View view) {
Intent openThree = new Intent(this,ThreeZeroOne.class);
startActivity(openThree);
}


}

Answer

You should the context of your adapter:

public void open301(View view) {
  Intent openThree = new Intent(context,ThreeZeroOne.class);
  context.startActivity(openThree);
}
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