TextView未更新

Question

我有一个文本视图，应该在单击某些复选框时更改。用户具有一定数量的免费积分，用于购买属性。单击复选框时，点数会减少。当取消选中一个复选框时，检查它的成本应该被退还到总的空闲点，但在我当前的代码中并非如此。复选框的代码很简单：

<RelativeLayout
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:id="@+id/class_container"
   android:layout_below="@id/stats_container"
   android:layout_alignParentLeft="true"
   android:layout_alignParentStart="true">
   <TextView
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:text="@string/class_select"
       android:textSize="24sp"
       android:id="@+id/class_description"
       android:layout_alignParentTop="true"
       android:layout_centerHorizontal="true"/>
   <CheckBox
       android:layout_below="@id/class_description"
       android:id="@+id/checkbox_noble"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:text="@string/class_noble"
       android:onClick="creationClassClick"/>
   <CheckBox
       android:layout_below="@id/class_description"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:id="@+id/checkbox_warrior"
       android:text="@string/class_warrior"
       android:layout_toEndOf="@+id/checkbox_noble"
       android:layout_toRightOf="@+id/checkbox_noble"
       android:onClick="creationClassClick"/>
   <CheckBox
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:id="@+id/checkbox_wizard"
       android:text="@string/class_wizard"
       android:layout_below="@+id/checkbox_noble"
       android:onClick="creationClassClick"/>
   <CheckBox
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:id="@+id/checkbox_trader"
       android:text="@string/class_trader"
       android:layout_below="@id/checkbox_warrior"
       android:layout_toEndOf="@+id/checkbox_wizard"
       android:layout_toRightOf="@+id/checkbox_wizard"
       android:onClick="creationClassClick"/>
</RelativeLayout>

此处的相关方法如下：

public void pointChange(final int amt){
        Runnable updateTextView = new Runnable() {
            @Override
            public void run() {
                TextView tv = findViewById(R.id.free_points);
                tv.setText(String.valueOf(amt));
            }
        };
        runOnUiThread(updateTextView);
    }

    public void creationClassClick(View v){
        int freePoints = Integer.parseInt(freePts.getText().toString());
        if(lastPointsUsed > 0){
            int addedBack = freePoints + lastPointsUsed;
            pointChange(addedBack);
            freePoints = Integer.parseInt(freePts.getText().toString());
            lastPointsUsed = 0;
        }

        String targetFull = A.getResources().getResourceEntryName(v.getId());
        String[] target = targetFull.split("_");

        boolean query;
        int cost = 1;
        int error;
        int cause;

        switch(target[1]){
            case "noble":
                warriorCheck.setChecked(false);
                wizardCheck.setChecked(false);
                traderCheck.setChecked(false);
                cost = 12;
                break;

            case "warrior":
                wizardCheck.setChecked(false);
                nobleCheck.setChecked(false);
                traderCheck.setChecked(false);
                cost = 8;
                break;

            case "wizard":
                warriorCheck.setChecked(false);
                nobleCheck.setChecked(false);
                traderCheck.setChecked(false);
                cost = 9;
                break;

            case "trader":
                warriorCheck.setChecked(false);
                wizardCheck.setChecked(false);
                nobleCheck.setChecked(false);
                cost = 10;
                break;
        }

        lastPointsUsed = cost;
        query = (freePoints - cost < 0);
        error = R.string.creation_no_points;
        cause = freePoints - cost;

        if(query){
            new Modal(app, true, R.string.oops, error, 0, 0);
        }else{
            this.classType = target[1];
            pointChange(cause);
        }
    }

当我在此活动中使用任何其他方法的pointChange()方法时，它可以正常工作。它只有在取消选中它失败的复选框时才会这样。 我搜索谷歌和SO的答案，我能想到的最好的是runnable设置为runonuithread，但它也不起作用。任何帮助将不胜感激。

- EDIT-- 通过Butterknife检索适当的视图，但这实际上是除了处理它们的xml之外的唯一代码：

@BindView(R.id.free_points) TextView freePts;
@BindView(R.id.checkbox_noble) CheckBox nobleCheck;
@BindView(R.id.checkbox_warrior) CheckBox warriorCheck;
@BindView(R.id.checkbox_wizard) CheckBox wizardCheck;
@BindView(R.id.checkbox_trader) CheckBox traderCheck;