Java 试图显示android progress circle,但它阻碍了搜索
我在堆栈上找到了为进度循环添加以下行的方法:Java 试图显示android progress circle,但它阻碍了搜索,java,android,android-actionbar,android-progressbar,Java,Android,Android Actionbar,Android Progressbar,我在堆栈上找到了为进度循环添加以下行的方法: requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS); setProgressBarIndeterminateVisibility(true); setProgressBarIndeterminateVisibility(false); 我有一个操作栏,它有一个搜索小部件,一旦从api获取json并对其进行解析,它就会执行搜索并在列表视图中显示结果 当我像这样将上述代码添加到搜索
requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
setProgressBarIndeterminateVisibility(true);
setProgressBarIndeterminateVisibility(false);
我有一个操作栏,它有一个搜索小部件,一旦从api获取json并对其进行解析,它就会执行搜索并在列表视图中显示结果
当我像这样将上述代码添加到搜索代码中时,它永远不会返回结果,而且我根本看不到微调器:
try {
//start progress bar
requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
setProgressBarIndeterminateVisibility(true);
System.out.println(result);
Log.d("asycTask", "[ Gets into asyc task ]");
///get
Log.d("search", "[ check if we get search results ]");
Log.d("search", "[" + result + "]");
JSONObject json = new JSONObject(result);
//acces listview
lv = (ListView) findViewById(android.R.id.list);
//make array list for beer
final List<BeerData> beerList = new ArrayList<BeerData>();
//get json items
for(int i = 0; i < json.getJSONArray("data").length(); i++) {
String beerId = GetBeerDataFromJSON(i,"id", json);
String beerName = GetBeerDataFromJSON(i,"name", json);
String beerDescription = GetBeerDataFromJSON(i,"description" , json);
String beerAbv = GetBeerDataFromJSON(i,"abv" , json);
String beerIbu = GetBeerDataFromJSON(i,"ibu" , json);
String beerIcon = GetBeerIconsFromJSON(i, "icon",json );
String beerMediumIcon = GetBeerIconsFromJSON(i, "medium",json );
String beerLargeIcon = GetBeerIconsFromJSON(i, "large",json );
String beerGlass = GetBeerGlassFromJSON(i, json );
String beerStyle = GetBeerStyleFromJSON(i,"name", json );
String beerStyleDescription = GetBeerStyleFromJSON(i,"description", json );
String beerBreweryId = GetBeerBreweryInfoFromJSON(i, "id", json );
String beerBreweryName = GetBeerBreweryInfoFromJSON(i, "name", json );
String beerBreweryDescription = GetBeerBreweryInfoFromJSON(i, "description", json );
String beerBreweryWebsite = GetBeerBreweryInfoFromJSON(i, "website", json );
String beerBreweryYear = GetBeerBreweryInfoFromJSON(i, "established", json );
String beerBreweryIcon = GetBeerBreweryIconsFromJSON(i,"large",json);
//create beer object
BeerData thisBeer = new BeerData(beerName, beerId, beerDescription, beerAbv, beerIbu, beerIcon,
beerMediumIcon,beerLargeIcon, beerGlass, beerStyle, beerStyleDescription, beerBreweryId, beerBreweryName,
beerBreweryDescription, beerBreweryYear, beerBreweryWebsite,beerBreweryIcon);
//add beer to list
beerList.add(thisBeer);
}
//update listview
ArrayAdapter<BeerData> adapter1 = new ArrayAdapter<BeerData>(MainActivity.this, R.layout.list_item, R.id.itemName, beerList);
lv.setAdapter(adapter1);
//set up clicks
lv.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1,
int arg2, long arg3) {
Intent i = new Intent(MainActivity.this, BeerPage.class);
BeerData beerInfo = beerList.get(arg2);
//Toast.makeText(MainActivity.this, beerInfo.beerName, Toast.LENGTH_SHORT).show();
i.putExtra("myBeerObject", beerInfo);
i.setClass(MainActivity.this, BeerPage.class);
startActivity(i);
}
});
//end progress bar
setProgressBarIndeterminateVisibility(false);
} catch (Exception e) {
Log.d("ReadBeerDataTask", e.getLocalizedMessage());
}
}
}
试试看{
//启动进度条
requestWindowFeature(Window.FEATURE\u不确定\u进度);
SetProgressBarInDeterminateVibility(真);
系统输出打印项次(结果);
Log.d(“asycTask”,“进入asyc任务]”;
///得到
Log.d(“搜索”,“检查是否得到搜索结果”);
Log.d(“搜索“,“[”+结果+“]”);
JSONObject json=新的JSONObject(结果);
//访问列表视图
lv=(ListView)findViewById(android.R.id.list);
//列一份啤酒清单
最终列表beerList=新的ArrayList();
//获取json项
for(int i=0;i
listview的xml是:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
tools:context=".MainActivity" >
<LinearLayout
android:id="@+id/linlaHeaderProgress"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gravity="center"
android:orientation="vertical"
android:visibility="gone" >
<ProgressBar
android:id="@+id/pbHeaderProgress"
style="android@style/Spinner"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
</ProgressBar>
</LinearLayout>
<ListView
android:id="@android:id/list"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:dividerHeight="0.1dp"
>
</ListView>
</LinearLayout>
当您显示进度、解析数据并将进度隐藏在同一段代码中时,您预计会发生什么?显然,我并不完全理解我在做什么,因此,这根本不是一个真正有建设性的评论。LinearLayout
包装ListView
和ProgressBar
的可见性设置为gone
,并且您不会在发布的代码中的任何地方还原它。