android - 如何在获得服务器响应后停止进度条

Question

我试图在收到服务器响应后停止进度条。下面是我用过的xml代码

activity.xml

  <ProgressBar
        android:layout_weight="1"
        android:id="@+id/progressBar"
        android:indeterminate="true"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:minHeight="40dp"
        android:minWidth="40dp"
        tools:ignore="MissingConstraints" />

activity.kt

 var progressBar =  findViewById(R.id.progressBar) as ProgressBar
 doAsync {
            try {
                    progressBar.setVisibility(View.VISIBLE);
                    appList = getAppList(requestBody, LAUNCHER_BASE_URL)
                    Log.d("App list =", appList.toString())
                    appInfoList = populateList()
                    progressBar.setVisibility(View.GONE);
            } catch (e: Exception) {
                progressBar.setVisibility(View.GONE);
                Log.e("Exception-launcher", e.toString())
            }

从上面的代码来看，即使得到响应，进度条也不会停止。任何帮助将不胜感激

我试过了，但是进度条停止后页面变成空白

Answer 1

在您的 try 子句中也添加 progressBar.setVisibility(View.INVISIBLE);，因为在当前状态下，它只会移除 API 失败时的加载:

 var progressBar =  findViewById(R.id.progressBar) as ProgressBar
 doAsync {
            try {
                    progressBar.setVisibility(View.VISIBLE);
                    appList = getAppList(requestBody, LAUNCHER_BASE_URL)
                    Log.d("App list =", appList.toString())
                    appInfoList = populateList()
                progressBar.setVisibility(View.INVISIBLE);
            } catch (e: Exception) {
                progressBar.setVisibility(View.INVISIBLE);
                Log.e("Exception-launcher", e.toString())
            }