如何知道在其他活动中单击了哪个按钮

Question

我有两个活动，Activity 1和Activity 2。 Activity 1包含8个按钮，每个按钮通过意图将一些数据发送到Activity 2，而Activity 2接收数据并显示在listview中。我想根据条件在列表视图中显示数据，因此在Activity 2中，我将每个按钮数据放在if块中

所以我的问题是

我应该在if(condition?)中放置什么条件才能知道在Activity 1中单击了哪个按钮
我的Activity 1

public void hmoral(View v){
        moralref.get().addOnCompleteListener(new OnCompleteListener<DocumentSnapshot>() {

            @Override
            public void onComplete(@NonNull Task<DocumentSnapshot> task) {
                if (task.isSuccessful()){
                    List<String> moraldata = new ArrayList<>();
                    Map<String,Object> map = task.getResult().getData();
                    for (Map.Entry<String,Object> entry:map.entrySet()){
                        moraldata.add(entry.getKey());
                        Log.d(TAG,entry.getKey());
                    }
                      Intent intent1 = new Intent(Activity1.this,Activity2.class);
                      intent1.putExtra("moraldata", (Serializable) moraldata);
                      startActivity(intent1);

                }
                }
        });
    }


    public  void hhorror(View v){
        horrorref.get().addOnCompleteListener(new OnCompleteListener<DocumentSnapshot>() {
            @Override
            public void onComplete(@NonNull Task<DocumentSnapshot> task) {
                if (task.isSuccessful()){
                    List<String> horrordata = new ArrayList<>();
                    Map<String,Object> map = task.getResult().getData();
                    for (Map.Entry<String,Object> entry:map.entrySet()){
                        horrordata.add(entry.getKey());
                        Log.d(TAG,entry.getKey());
                    }
                      Intent intent = new Intent(Activity1.this,Activity2.class);
                      intent.putExtra("horrordata", (Serializable) horrordata);
                      startActivity(intent);

                }

            }
        });

    }
}

下面Activity2的代码：

public class ListAcivity extends AppCompatActivity {
    ListView originallist;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_list_acivity);
        originallist = findViewById(R.id.originallist);


        if (){

          ArrayList<String> morallist = getIntent().getStringArrayListExtra("moraldata");
          ArrayAdapter<String> arrayAdapter = new ArrayAdapter<>(this,android.R.layout.simple_list_item_1,morallist);
          originallist.setAdapter(arrayAdapter);
        }

         if (){
        ArrayList<String> horrorlist =  getIntent().getStringArrayListExtra("horrordata");
        ArrayAdapter<String>arrayAdapter1 = new ArrayAdapter<>(this,android.R.layout.simple_list_item_1,horrorlist);
        originallist.setAdapter(arrayAdapter1);
         }


    }

Answer 1

如何知道在其他活动中单击了哪个按钮

使用意图将按钮ID发送到下一个活动：

intent.putExtra("clicked_view_id", view.getId());

现在使用clicked_view_id和开关盒与按钮ID进行比较：

int clickedButtonID = getIntent().getIntExtra("clicked_view_id", 0);
switch(clickedButtonID){
  case R.id.button1:
   ...
   break;
  case R.id.button2:
   ... 
   break;

} 

Answer 2

在您的活动1中：

    Private  String buttonText ="";

    yourButtonClick.setOnClickListener(this);

    @Override
public void onClick(View view) {
 buttonText = getIntent().getStringExtra("btn_text");

    switch (view.getId()) {
        case R.id.button1:
            buttonText = "buttonOne";
            break;
        case R.id.button2:
            buttonText = "buttonTwo";
            break;
        case R.id.button8:
            buttonText = "buttonEight";
            break;

       }

     }

  }
 Intent intent = new Intent(Activity1.this,Activity2.class);
                    intent.putExtra("btnClicked", buttonText);
                   startActivity(intent);

//在列表活动中

 String btnClicked = getIntent().getStringArrayListExtra("btnClicked");