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);
}
}
You should use the context of your adapter:
public void open301(View view) {
Intent openThree = new Intent(context,ThreeZeroOne.class);
context.startActivity(openThree);
}
To start a new activity you will need a context to start from, and your current activity "BaseAdapter" is not a Context, luckly every view has a Context, so you can do like this:
public void open301(View view) {
Intent openThree = new Intent(view.getContext(), ThreeZeroOne.class);
view.getContext().startActivity(openThree);
}
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With