Question

我正在让MaterialBetterSpinner下拉，我希望在用户从此下拉菜单中选择值时获取值。我在很多网站上搜索过但我无法得到任何解决方案。有没有办法从这个微调器获得价值，

我的代码

MaterialBetterSpinner materialDesignSpinner = (MaterialBetterSpinner)
                v.findViewById(R.id.android_material_design_spinner);
ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(getActivity(), android.R.layout.simple_dropdown_item_1line, SPINNERLIST);
materialDesignSpinner.setAdapter(arrayAdapter);
materialDesignSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
    @Override
    public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
      String  selected=String.valueOf(materialDesignSpinner.getText());
        Toast.makeText(getActivity(), selected, Toast.LENGTH_SHORT).show();
    }

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

    }
});

Xml代码

<com.weiwangcn.betterspinner.library.material.MaterialBetterSpinner
    android:layout_marginLeft="20dp"
    android:layout_marginRight="20dp"
    android:id="@+id/android_material_design_spinner"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:hint="Blood Group Type"
    android:textColorHint="#05ab9a"
    app:met_floatingLabel="normal" />

Answer 1

materialDesignSpinner.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> adapterView, View view, int position, long l) {
                String spinner_value= adapterView.getItemAtPosition(position).toString();
                Toast.makeText(getApplicationContext(),spinner_value,Toast.LENGTH_LONG).show();
            }
        });

Answer 2

MaterialBetterSpinner类中有以下方法。

public int getPosition() {
        return mPosition;
    }

您可以使用materialDesignSpinner.getPostion()获取所选项目的位置，然后您可以从列表中获取该位置。

Answer 3

使用.setOnItemClickListener，它适用于我。

 categorySpinner.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
            Log.d("kkkk",""+position);
      }
   }

Answer 4

materialDesignSpinner_gender.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
            }
            @Override
            public void onTextChanged(CharSequence s, int start, int before, int count) {
            }
            @Override
            public void afterTextChanged(Editable s) {
            String gender=materialDesignSpinner_gender.getText().toString();
            Toast.makeText(getApplicationContext(),gender ,Toast.LENGTH_LONG).show();

            }
        });

如何从MaterialBetterSpinner中选择值？

4 个答案: