我可以在不使用ScrollView/ListView的情况下使用Pull to Refresh吗？

Question

我试图在我的应用程序中实现Pull to Refresh.

我用android.support.v4.widget.SwipeRefreshLayout包装我的xml代码并且它正常工作,但GUI看起来不太好.

当我向下拉时,我应该看到带有我定义的颜色的常规动画圆圈图标,对吧？但是我认为它是一个空白圆圈,而不是一个带有颜色的转动.

此外,我不能"玩"它甚至在我拉动它之后保持一段时间,它会下降一秒钟(做它做的事情)然后消失.

我认为这是因为我没有使用ListView而是使用LinearLayout.

你怎么看？

码:

XML:

<android.support.v4.widget.SwipeRefreshLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:id="@+id/swipe">

    <LinearLayout
        android:layout_height="match_parent"
        android:paddingLeft="@dimen/activity_horizontal_margin"
        android:orientation="vertical"
        android:layout_width="match_parent"
        android:paddingRight="@dimen/activity_horizontal_margin"
        android:paddingTop="@dimen/activity_vertical_margin"
        android:background="#7B68EE"
        android:paddingBottom="@dimen/activity_vertical_margin"
        tools:context=".HomeActivity">

    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/loin"
        android:orientation="horizontal">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textAppearance="?android:attr/textAppearanceLarge"
            android:text="@string/welcome"
            android:textColor="#B0C4DE"
            android:id="@+id/welcomeBackID"
            android:layout_alignParentTop="true"
            android:layout_alignRight="@+id/webViewCurren"
            android:layout_alignEnd="@+id/webViewCurren" />

        ....

 </android.support.v4.widget.SwipeRefreshLayout>

Java的:

public class HomeActivity extends AppCompatActivity implements SwipeRefreshLayout.OnRefreshListener {

    SwipeRefreshLayout mSwipeRefreshLayout;

    @Override
    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_home);

        mSwipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.swipe);
        mSwipeRefreshLayout.setColorSchemeResources(android.R.color.holo_green_light,
                android.R.color.holo_blue_bright,
                android.R.color.holo_orange_light,
                android.R.color.holo_red_light);
        mSwipeRefreshLayout.setOnRefreshListener(this);

    @Override
    public void onRefresh() {
        Toast.makeText(this, "Refresh", Toast.LENGTH_SHORT).show();
        sharedPrefEditor.putString("coordinateX", "34.7");
        sharedPrefEditor.putString("coordinateY", "32.5");
        sharedPrefEditor.putString("saved", "false");
        sharedPrefEditor.commit();

        new Handler().postDelayed(new Runnable() {
            @Override
            public void run() {
                mSwipeRefreshLayout.setRefreshing(false);
            }
        }, 3000);
    }
}

Answer 1

尝试更改SwipeRefreshLayout配色方案。

    swipeRefreshLayout.setColorSchemeColors(
    Color.RED, Color.GREEN, Color.BLUE, Color.CYAN);

此外，只有在完成执行SwipeRefreshLayout后才可见。onRefresh()