使用putExtra传递数据并在onClick中使用它

如何解决使用putExtra传递数据并在onClick中使用它

我编写了以下代码：

public class HoursActivity extends AppCompatActivity{

    public String name;
    public String number;
    public String date;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_hours);
        Bundle extras = getIntent().getExtras();

        //if (extras != null) {
            name = extras.getString("name");
            number = extras.getString("number");
            date = extras.getString("date");
        //}
        final int hour = 9;
        //final int minute = 0;
        for (int i = 1; i <= 10; i++) {
            LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
                    LinearLayout.LayoutParams.MATCH_PARENT,LinearLayout.LayoutParams.WRAP_CONTENT);
            Button btn = new Button(this);
            btn.setId(hour);
            final int id_ = btn.getId();
            btn.setText(hour + i +":00");
            LinearLayout linearLayout = (LinearLayout) findViewById(R.id.linearLayout);
            linearLayout.addView(btn,params);
            final Button btn1 = ((Button) findViewById(id_));
            btn1.setonClickListener(new View.OnClickListener() {
                @RequiresApi(api = Build.VERSION_CODES.O)
                public void onClick(View view) {
                    Toast.makeText(view.getContext(),date + name + number,Toast.LENGTH_SHORT)
                            .show();
                }
            });
        }
    }

此代码创建了10个按钮，当我单击一个按钮时，我想打印从上一个活动获得的数据。因此，我编写了以下代码：

            name = extras.getString("name");
            number = extras.getString("number");
            date = extras.getString("date");

我为每个按钮编写了以下代码：

public void onClick(View view) {
                    Toast.makeText(view.getContext(),Toast.LENGTH_SHORT)
                            .show();
                }

问题在于字符串日期+名称+数字仅为第一个按钮打印。 我哪里出问题了？

解决方法

创建意图：

Intent i = new Intent(MainActivity.this,SecondActivity.class);
AutoCompleteTextView textView = (AutoCompleteTextView) findViewById(R.id.autocomplete);
String getText=textView.getText().toString();

//Create the bundle
Bundle bundle = new Bundle();

//Add your data to bundle
bundle.putString(“getText”,getText);

//Add the bundle to the intent
i.putExtras(bundle);

//Fire that second activity
startActivity(i);

进入第二个活动，从捆绑软件中检索数据：

 //Get the bundle
    Bundle bundle = getIntent().getExtras();
    
    //Extract the data…
    String stuff = bundle.getString(“stuff”);