Screen加载MainActivity
Screen加载MainActivity
提问于 2017-06-07 21:03:31
我目前有一个splashScreenActivity，它要求用户按下button上的按钮才能转到MainActivity。
是否有可能加载MainActivity**'s 的所有内容而不将 UI显示在** splashScreenActivity**'s UI**之上，以便当他按下按钮时，他被重定向到MainActivity，并且所有数据都被100%加载？
提前感谢
回答 3
Stack Overflow用户
回答已采纳
发布于 2017-06-08 20:25:52
我找到了我的问题的答案！
注意，在我的例子中，MainActivity 可以是任何活动
将Splash屏幕作为fragment而不是activity使您可以将MainActivity与fragment覆盖，而MainActivity数据则加载在后台。
此时，无论何时准备就绪，只要将fragment的可见性设置为View.GONE或将其从片段堆栈getFragmentManager().popBackStack();中弹出，就会在加载了所有数据之后(永远不会离开)返回到MainActivity。
Stack Overflow用户
发布于 2018-05-13 21:04:14
在主活动上使用可运行的全屏对话框
public void showsplash() {
final Dialog dialog = new Dialog(MainActivity.this, android.R.style.Theme_Black_NoTitleBar_Fullscreen);
dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
dialog.setContentView(R.layout.activity_splash_screen);
dialog.setCancelable(true);
dialog.show();
final Handler handler = new Handler();
final Runnable runnable = new Runnable() {
@Override
public void run() {
{
dialog.dismiss();
}
}
};
handler.postDelayed(runnable, 30000);
}Stack Overflow用户
发布于 2017-06-07 23:33:12
enter code here1)当用户在SplashScreenActivity中时，使用AsyncTask<>加载背景中的所有MainActivity内容。这将帮助您避免单击按钮将您从SplashScreenActivity转到MainActivity的额外步骤，这将通过意图的使用来处理。(参见下面的工作示例)
SplashScreenActivity.java
package foo.foo.load.mainactivity
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.content.res.AssetManager;
import android.content.res.Configuration;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import java.util.ArrayList;
import java.util.List;
public class SplashScreenActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_splash);
// Make call to execute AsycTasks<> here
// This helps avoid the extra step of clicking on a button
// to take you to the MainActivity
new StartMainActivity().execute(this);
Thread timerThread = new Thread() {
public void run() {
try {
sleep(2000);
} catch(InterruptedException e) {
e.printStackTrace();
} finally {
// After 2 seconds the Splashscreen will disappear and user is taken to MainActivity
Intent splashScreenIntent = new Intent(SplashScreenActivity.this, MainActivity.class);
startActivity(splashScreenIntent);
}
}
};
timerThread.start();
}
@Override
protected void onPause() {
super.onPause();
finish();
}
private class StartMainActivity extends AsyncTask<Context, Void, Intent> {
Context ctx;
@Override
protected Intent doInBackground(Context... params) {
ctx = params[0];
AssetManager assetManager = ctx.getAssets();
final CBLite cblite = new CBLite(new AndroidContext(ctx), assetManager);
// Handle all your MainActivity Contents call here
// Begin MainActivity Content Calls
Image.getImages();
Navigation.getMainNavigation();
// End MainActivity Content Calls
Intent in = new Intent();
in.setClass(ctx, MainActivity.class);
return in;
}
@Override
protected void onPostExecute(Intent intent) {
ctx.startActivity(intent);
super.onPostExecute(intent);
}
}
}activity_splash.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:background="@drawable/splashscreen_background_image"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/splashScreenMainTitle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="150dp"
android:gravity="center"
android:text="Header Title"
android:visibility="visible"/>
<TextView
android:id="@+id/splashScreenSubTitle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/splashScreenMainTitle"
android:layout_marginBottom="40dp"
android:gravity="center"
android:text="Sub Header Title"
android:visibility="visible"/>
<ImageView
android:id="@+id/splashScreenLogo"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/splashScreenSubTitle"
android:src="@drawable/logo"
android:layout_gravity="center_horizontal"
android:background="@android:color/transparent"/>
</RelativeLayout>activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout 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"
tools:context=".MainActivity">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="@style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="@style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
<include layout="@layout/content_main" />
<android.support.design.widget.FloatingActionButton
android:id="@+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end"
android:layout_margin="@dimen/fab_margin"
app:srcCompat="@android:drawable/ic_menu_search" />
</android.support.design.widget.CoordinatorLayout>页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/44422725
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