Question

正如标题所示，我的应用程序中的警报框不会保持打开状态。该框嵌套在for循环中，单击按钮时会检查该循环。当循环进入警告框时，它会在屏幕上闪烁，然后立即消失。

我可以在警告框上放置某种计时器以使其保持打开状态，或者我是否错误地实施了该框？

按钮w / for循环和嵌套警告框

Button button= (Button) findViewById(R.id.cookButton);
    button.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            finish();
            //deducting one ingredient
            final Cursor ingredients = adapter.getRecipesIngredients(recipeCode);
            final Cursor missing = adapter.missingIngredients(recipeCode);
            if(missing.getCount() == 0)
            {
                Toast.makeText(getApplicationContext(), "Haveeverything", Toast.LENGTH_SHORT).show();
                ingredients.moveToFirst();

                String ingredient = ingredients.getString(ingredients.getColumnIndex("ingredient_name"));
                int measurement = ingredients.getInt(ingredients.getColumnIndex("measurement"));
                adapter.deductIngredient(ingredient, measurement);

            }
            else
            {

                AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(
                        context);

                // set title
                alertDialogBuilder.setTitle("Uh Oh!");

                // set dialog message
                alertDialogBuilder
                        .setMessage("Opps looks like yuor out of some stuff, Want to add it to your shopping list?")
                        .setCancelable(false)
                        .setPositiveButton("Yes",new DialogInterface.OnClickListener() {
                            public void onClick(DialogInterface dialog,int id) {
                                final Cursor missing2 = adapter.missingIngredients(recipeCode);
                                while(missing2.moveToNext()) {
                                    String n = missing2.getString(missing2.getColumnIndex("ingredient_name"));
                                    Toast.makeText(getApplicationContext(), "Adding Missing to SHopping List: " + n, Toast.LENGTH_SHORT).show();
                                    adapter.insertItem(n, 100, "grams");
                                }
                                SingleRecipeDisaply.this.finish();
                            }
                        })
                        .setNegativeButton("No",new DialogInterface.OnClickListener() {
                            public void onClick(DialogInterface dialog,int id) {
                                // if this button is clicked, just close
                                // the dialog box and do nothing
                                dialog.cancel();
                            }
                        });

                // create alert dialog
                AlertDialog alertDialog = alertDialogBuilder.create();

                // show it
                alertDialog.show();
            }
        }
    });

Answer 1

为什么您在finish()中添加了onClick，这必定会导致问题，您的活动也必须关闭，而不仅仅是AlertDialog。

@Override
public void onClick(View v) {
    finish();
    ...
    ...

删除finish()即可。

Android Alert Box不会保持开放状态

1 个答案: