如何在同一个 Activity 中使用将 2 个 editText 保存到 2 个微调器

Question

我想让第二个 "save" 按钮像第一个一样将第二个 editText 保存到第二个微调器，这是我正在尝试使用的代码，感谢 cricket_007 帮助我整个问题

    List<String> pn, txt;
Spinner sp1, sp2;
Button b, b1, b2, b3;
EditText et, et1;

ArrayAdapter<String> adp1, adp2;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main2);

    setupSpinners();

    b = (Button) findViewById(R.id.button);
    b1 = (Button) findViewById(R.id.button1);
    b2 = (Button) findViewById(R.id.button2);
    b3 = (Button) findViewById(R.id.button3);
    et = (EditText) findViewById(R.id.editText);
    et1 = (EditText) findViewById(R.id.editText1);

    b.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            adp1.add(et.getText().toString());
            et.setText(null);
        }

    });

    b2.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            adp2.add(et1.getText().toString());
            et1.setText(null);
        }

    });
}

public void setupSpinners() {

    sp1 = (Spinner) findViewById(R.id.spinner);
    sp2 = (Spinner) findViewById(R.id.spinner1);
    pn = new ArrayList<String>();
    txt = new ArrayList<String>();
    txt.add("Sorry Boss I'cant go today i'm sick");
    pn.add("123456789");

    adp1 = new ArrayAdapter<String>(this,
            android.R.layout.simple_dropdown_item_1line, pn);
    adp2 = new ArrayAdapter<String>(this,
            android.R.layout.simple_dropdown_item_1line, txt);

    sp1.setAdapter(adp1);
    sp1.setSelection((pn.size() - 1));
    sp2.setAdapter(adp2);
    sp2.setSelection((txt.size() - 1));

    sp1.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {

        @Override
        public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
            sp1.setSelection(arg2);
        }

        @Override
        public void onNothingSelected(AdapterView<?> arg0) {
        }


    });
    sp2.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {

        @Override
        public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
            sp2.setSelection(arg2);
        }

        @Override
        public void onNothingSelected(AdapterView<?> arg0) {
        }

Answer 1

您只需设置适配器和旋转器一次。

无论您在点击事件之间尝试做什么，都会添加到 onItemSelected 中，但为了设置另一个微调器的选择，它需要一些数据，因此向其添加一个适配器。

并且，对于问题的最新编辑，您没有正确缩进代码，但您在按钮的 onClick 中设置了一些不应该出现的内容。

public class MainActivity extends AppCompatActivity {

    List<String> pn, txt;
    Spinner sp1, sp2;
    Button b, b1, b2, b3;
    EditText et, et1;

    ArrayAdapter<String> adp1, adp2; // Added

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        setupSpinners();

        b = (Button) findViewById(R.id.button);
        b1 = (Button) findViewById(R.id.button1);
        b2 = (Button) findViewById(R.id.button2);
        b3 = (Button) findViewById(R.id.button3);
        et = (EditText) findViewById(R.id.editText);
        et1 = (EditText) findViewById(R.id.editText1);

        b.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                adp1.add(et.getText().toString());  // Changed
                et.setText("");
            }
        });

       b2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                adp2.add(et1.getText().toString());
                et1.setText("");
            }
        });
    }

    public void setupSpinners() {

        sp1 = (Spinner) findViewById(R.id.spinner);
        sp2 = (Spinner) findViewById(R.id.spinner1);
        pn = new ArrayList<String>();
        txt = new ArrayList<String>();
        txt.add("Sorry Boss I'cant go today i'm sick");
        pn.add("123456789");

        adp1 = new ArrayAdapter<String>(this,
                android.R.layout.simple_dropdown_item_1line, pn);
        adp2 = new ArrayAdapter<String>(this,
                android.R.layout.simple_dropdown_item_1line, txt);

        sp1.setAdapter(adp1);
        sp1.setSelection((pn.size() - 1));
        sp1.setOnItemSelectedListener(new OnItemSelectedListener() {

            @Override
            public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
                sp2.setSelection(arg2);
            }

            @Override
            public void onNothingSelected(AdapterView<?> arg0) {
            }
        });

        sp2.setAdapter(adp2);

    }
}

如何在同一个 Activity 中使用将 2 个 editText 保存到 2 个微调器

How to use save 2 editText to 2 spinners in same Activity

java

android

android-spinner