Android - SeekBar 起点

Question

我的 View 中有两个 SeekBar，我在布局中类似地声明了它们:

<SeekBar android:id="@+id/select_price"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_marginTop="5dp" />
<TextView android:id="@+id/max_price"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:text="0 VND"
          android:layout_gravity="center" />

<LinearLayout android:layout_width="match_parent"
              android:layout_height="wrap_content"
              android:layout_marginTop="20dp"
              android:orientation="horizontal">
    <ImageView android:layout_width="20dp"
               android:layout_height="20dp"
               android:src="@drawable/ic_distance"
               android:layout_marginRight="5dp" />
    <TextView android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:textSize="18sp"
              android:text="@string/max_distance" />
</LinearLayout>

<SeekBar android:id="@+id/select_distance"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_marginTop="5dp"/>
<TextView android:id="@+id/distance"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:text="0 Km"
          android:layout_gravity="center" />

这是我使用它们的代码:

SeekBar sb = (SeekBar) v.findViewById(R.id.select_price);
            sb.setMax(1000);
            sb.setProgress(10);
            sb.setOnSeekBarChangeListener(new OnSeekBarChangeListener(){

                @Override
                public void onProgressChanged(SeekBar seekBar, int progress,
                        boolean fromUser) {
                    TextView text = (TextView) v.findViewById(R.id.max_price);
                    text.setText(Integer.toString(progress) + PlaceListActivity.this.getResources().getString(R.string.dong));
                    maxPrice = progress;
                }

                @Override
                public void onStartTrackingTouch(SeekBar seekBar) {
                    // TODO Auto-generated method stub

                }

                @Override
                public void onStopTrackingTouch(SeekBar seekBar) {
                    // TODO Auto-generated method stub

                }

            });

            SeekBar seek = (SeekBar) v.findViewById(R.id.select_distance);
            seek.setMax(10);
            seek.setProgress(1);
            seek.setOnSeekBarChangeListener(new OnSeekBarChangeListener(){

                @Override
                public void onProgressChanged(SeekBar seekBar, int progress,
                        boolean fromUser) {
                    TextView text = (TextView) v.findViewById(R.id.distance);
                    text.setText(Integer.toString(progress) + PlaceListActivity.this.getResources().getString(R.string.km));
                    maxDistance = progress;
                }

                @Override
                public void onStartTrackingTouch(SeekBar seekBar) {
                    // TODO Auto-generated method stub

                }

                @Override
                public void onStopTrackingTouch(SeekBar seekBar) {
                    // TODO Auto-generated method stub

                }

            });

但是当我在我的设备中调试应用程序时，第一个搜索栏没问题，但另一个搜索栏变得很奇怪，我不知道为什么。这是屏幕截图:

如您所见，第一个小节的起点并非从头开始。这可能是什么原因？我真的希望有人能帮我解决这个问题。谢谢。

Answer 1

如果您希望两个 SeekBar 都从头开始，同时仍然分别为价格和距离设置最小值 10 和 1，请将它们都设置为零，然后以编程方式添加最小值，如下所示:

    SeekBar sb = (SeekBar) v.findViewById(R.id.select_price);
    sb.setMax(1000);
    sb.setProgress(0); // Set it to zero so it will start at the left-most edge
    sb.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {

        @Override
        public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
            progress = progress + 10; // Add the minimum value (10)
            TextView text = (TextView) v.findViewById(R.id.max_price);
            text.setText(Integer.toString(progress) + PlaceListActivity.this.getResources().getString(R.string.dong));
            maxPrice = progress;
        }

        @Override
        public void onStartTrackingTouch(SeekBar seekBar) {}

        @Override
        public void onStopTrackingTouch(SeekBar seekBar) {}

    });

    SeekBar seek = (SeekBar) v.findViewById(R.id.select_distance);
    seek.setMax(10);
    seek.setProgress(0); // Set it to zero so it will start at the left-most edge
    seek.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {

        @Override
        public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
            progress = progress + 1; // Add the minimum value (1)
            TextView text = (TextView) v.findViewById(R.id.distance);
            text.setText(Integer.toString(progress) + PlaceListActivity.this.getResources().getString(R.string.km));
            maxDistance = progress;
        }

        @Override
        public void onStartTrackingTouch(SeekBar seekBar) {}

        @Override
        public void onStopTrackingTouch(SeekBar seekBar) {}

    });