计数填充的文本字段[关闭]

正如您强调的那样,countFilledFileds()方法将对您有所帮助。据我所知,这将是你的问题的完整解决办法。

public class SampleActivity extends AppCompatActivity {

private EditText editText1,editText2,editText3,editText4;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_sample);

    Button btn = findViewById(R.id.btn);
    editText1 = findViewById(R.id.editText1);
    editText2 = findViewById(R.id.editText2);
    editText3 = findViewById(R.id.editText3);
    editText4 = findViewById(R.id.editText4);


    btn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

            int filledFileds = countFilledFields();
            Log.d("filled", String.valueOf(filledFileds));
            Class newClass = SampleActivity.class;

            switch (filledFileds){
                case 1:

                    newClass = Activity1.class;

                    break;

                case 2:

                    newClass = Activity2.class;

                    break;

                case 3:

                    newClass = Activity3.class;

                    break;

                case 4:

                    newClass = Activity4.class;

                    break;

                default:


            }

            Intent intent = new Intent(SampleActivity.this, newClass);
        }
    });
}

private int countFilledFields() {

    ArrayList<EditText> editTexts = new ArrayList<>();
    editTexts.add(editText1);
    editTexts.add(editText2);
    editTexts.add(editText3);
    editTexts.add(editText4);

    int filledNumber = 0;

    for(int i = 0;i < editTexts.size() ;i++){

        if(editTexts.get(i).getText()!=null && !editTexts.get(i).getText().toString().matches("")){
            filledNumber += 1;
        }

    }
    return filledNumber;
}
}

你可以这样做。。但你必须补充一点

android:tag="et"

public class MainActivity extends AppCompatActivity {
 int count=0;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        LinearLayout parentLayout = (LinearLayout) findViewById(R.id.linearLayout);
        int elements = parentLayout.getChildCount();
        View v = null;
        for(int i=0; i<elements; i++) {
            v = parentLayout.getChildAt(i);
           if(v.getTag()!=null && v.getTag().equals("et")){
               count= count++;
           }
        }
    }
}

循环EditText对象并知道它是否有值;

例如,

EditText e1 = ....
EditText e2 = .....
.
.
.
EditText e10 = .....
EditText allText[] = new EditText[]{e1, e2, ...e10};
int filled = 0;
for(int i = 0; i < allText.length; i++) {
    if(!allText[i].getText().toString().isEmpty())
        filled++;
}

所以你的人已经数到了。

您可以使用一些标志来设置填充的editText字段的计数。

将所有editText引用添加到列表中。并使用下面的方法获得计数。

int count =0;
private int getEditTextViewCount(List<EditText> editTexts){
    for(EditText editText : editTexts){
        if(!editText.getText().toString().isEmpty()){
            count++;
        }
    }
    return count;
}

long numberOfFilledFields = Stream.of(
            editText1.getText().toString(),
            editText2.getText().toString(),
            editText3.getText().toString()) //you can add as many as you want here
        .filter(s -> !s.isEmpty())
        .count();

switch (numberOfFilledFields) {
    case 0:
        //start activity 1
        break;
    case 1:
        //start activity 2
        break;
    .
    .
    .
}