Question

我正在尝试一件事：在我的Activity中我有30个按钮，每个人都有一个从1到30的数字。现在我想为每个分配一个打开相同Activity但传递相应数字的Intent 。我该怎么办？

public void ApriTavolo(View v) {
     Bundle extras = new Bundle();

     // pass the value of button           
     extras.putString("one", one);

     // Perform action on click   
     Intent activityChangeIntent = new Intent(MainActivity.this, Interno_tavolo.class);
     activityChangeIntent.putExtras(extras);
     startActivity(activityChangeIntent);

}

Answer 1

如果您只有按钮编号，请确保所有内容都采用相同的侦听方法

并获取文本并将文本作为参数发送。

public void ApriTavolo(View v) {
     Bundle extras = new Bundle();

     Button b = (Button) v;
     String value = b.getText().toString();

     // pass the value of button           
     extras.putString("value", value);

     // Perform action on click   
     Intent activityChangeIntent = new Intent(MainActivity.this, Interno_tavolo.class);
     activityChangeIntent.putExtras(extras);
     startActivity(activityChangeIntent);

}

Answer 2

你可以点点头像

String pressed = null;
switch(v.getId()) {
 case R.id.firstButton:
   pressed = "one";
   break;
// up to the end
}

Intent activityChangeIntent = new Intent(MainActivity.this, Interno_tavolo.class);
 extras.putString("one", one);
activityChangeIntent.putExtras(extras);
startActivity(activityChangeIntent);

或者你可以为每个按钮分配一个标签（有属性android:tag）;你可以检索它：

Intent activityChangeIntent = new Intent(MainActivity.this, Interno_tavolo.class);
 extras.putString("one", (String)v.getTag());
activityChangeIntent.putExtras(extras);
startActivity(activityChangeIntent)

Android意图很多按钮

2 个答案: