[英]Displaying list view Items when button is clicked
I am creating a Tables app ie When a number is entered in editText and button is pressed, The list view will show the table of that certain number.我正在创建一个表格应用程序,即当在 editText 中输入一个数字并按下按钮时,列表视图将显示该特定数字的表格。 I tried this code but it keeps crashing.
我尝试了这段代码,但它一直在崩溃。
public class MainActivity extends AppCompatActivity {
ListView myListView;
public final void generate(int timesTableNumber){
ArrayList<String> timeTableContent= new ArrayList<String>();
for(int j=1;j<=10;j++)
timeTableContent.add(Integer.toString(j*timesTableNumber));
ArrayAdapter<String> arrayAdapter=new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,timeTableContent);
myListView.setAdapter(arrayAdapter);
}
public void table(View view)
{
EditText editText=(EditText)findViewById(R.id.editText);
generate(Integer.parseInt(editText.toString()));
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
myListView=findViewById(R.id.myListView);
generate(1);
}
}
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