我遇到的问题是,当我想在第一个活动“ ww1”和第二个活动“ ww2”之间切换时,我有一个白屏显示,我已经尝试了一种解决方案,说我应该在我的styles.xml并将其添加到第二个活动中,但结果是在活动之间切换时显示黑屏。
这是ww1.xml:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/ww1"
tools:context=".ww1">
<Button
android:id="@+id/menu"
android:layout_width="163dp"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:background="@drawable/menu"
android:visibility="visible" />
<Button
android:id="@+id/next_btn"
android:layout_width="55dp"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_alignParentTop="true"
android:layout_marginTop="210dp"
android:background="@drawable/next"
android:visibility="visible" />
ww2.XML:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/ww2"
tools:context=".ww2">
<Button
android:id="@+id/menu"
android:layout_width="163dp"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:background="@drawable/menu"
android:visibility="visible" />
<Button
android:id="@+id/next_btn"
android:layout_width="55dp"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_alignTop="@+id/previous_btn"
android:background="@drawable/next"
android:visibility="visible" />
<Button
android:id="@+id/previous_btn"
android:layout_width="57dp"
android:layout_height="wrap_content"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:layout_marginTop="211dp"
android:background="@drawable/previous"
android:visibility="visible" />
用于显示ww2.xml的代码:
Intent mySuperIntent = new Intent(ww1.this, ww2.class);
startActivity(mySuperIntent);
overridePendingTransition(R.anim.slide_from_right,R.anim.slide_to_left);
答案 0 :(得分:0)
使用它对我有用
public Game GetGameData(int GameId)
{
var url = "https://store.steampowered.com/api/appdetails/?appids=" + GameId.ToString();
//Game GameData = _download_serialized_json_data<Game>(url);
HttpWebRequest WebReq = (HttpWebRequest)WebRequest.Create(string.Format(url));
WebReq.Method = "GET";
HttpWebResponse WebResp = (HttpWebResponse)WebReq.GetResponse();
Console.WriteLine(WebResp.StatusCode);
Console.WriteLine(WebResp.Server);
string jsonString;
using (Stream stream = WebResp.GetResponseStream())
{
StreamReader reader = new StreamReader(stream, System.Text.Encoding.UTF8);
jsonString = reader.ReadToEnd();
}
var dict = JsonConvert.DeserializeObject<Dictionary<string, Game>>(jsonString);
Game gameData = dict[GameId.ToString()];
return gameData;
}
如果不工作,请使用它 在您的样式中添加
Intent mySuperIntent = new Intent(ww1.this, ww2.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(mySuperIntent);
overridePendingTransition(R.anim.slide_from_right,R.anim.slide_to_left);
但是,更好的方法是在Activity.onCreate期间在主线程上执行较少的操作,并在用户等待时显示预览屏幕。为了顺利过渡,您可以在窗口中设置自定义背景,将其添加到主题中:
<style name="AppTheme" parent="Theme.AppCompat">
<item name="android:windowDisablePreview">true</item>
</style>