I am a newbie both to Java and Android and have been reading the book
"Unlocking Android" and trying to learn by adapting their code to my
ideas for a project to play with and learn Android.
But, I have run into a brick wall that I need help with. The
following code gives me a force close when I click the submit button,
and I don't know why. (Good debugging tips would be nice too.)
Its the line:
BoardGameFinderApplication application = (BoardGameFinderApplication)
getApplication();
that seems to be causing the crash. I just don't understand why? All
indications are that I am using it correctly. What am I missing?
Here is the code:
>From my main activity class:
import java.util.ArrayList;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Debug;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
public class BoardgameCriteria1 extends Activity {
private Button grabGames;
private TextView introText;
private EditText gameName;
ArrayList<String> bglNames = new ArrayList<String>();
private String s;
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.main);
this.introText = (TextView) findViewById(R.id.IntroText);
this.gameName = (EditText) findViewById(R.id.GameName);
this.grabGames = (Button) findViewById(R.id.Submit);
// get the board game names when submit button hit
this.grabGames.setOnClickListener(
new OnClickListener() {
public void onClick(View v) {
handleGetReviews();
}
});
}
private void handleGetReviews() {
BoardGameFinderApplication application =
(BoardGameFinderApplication) getApplication();
application.setBoardGameCriteriaName(this.gameName.getText().toString());
Intent intent = new Intent(this.getApplicationContext(),
GameList1.class);
startActivity(intent);
}
}
.... and the BoardGameFinderApplication class:
public class BoardGameFinderApplication extends Application {
private BoardGame currentBoardGame;
private String gameCriteriaName;
public BoardGameFinderApplication() {
super();
}
@Override
public void onCreate() {
super.onCreate();
}
@Override
public void onTerminate() {
super.onTerminate();
}
public BoardGame getCurrentBoardGame() {
return this.currentBoardGame;
}
public String getBoardGameCriteriaName() {
return this.gameCriteriaName;
}
public void setCurrentBoardGame(BoardGame currentBoardGame) {
this.currentBoardGame = currentBoardGame;
}
public void setBoardGameCriteriaName(String boardGameCriteriaName)
{
this.gameCriteriaName = boardGameCriteriaName;
}
}
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