Question

我做了一个飞溅布局，持续了一段时间，然后应该加载其他活动，单独它完美运行，但当它连接到其他活动时，它显示空白屏幕。

mainifest档案：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="andy.propaganda"
    android:installLocation="auto" >

    <application
        android:allowBackup="true"
        android:icon="@drawable/my_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme.NoActionBar"
        >
        <activity
            android:name=".shit"
            android:label="@string/app_name"
            >
            <intent-filter>
                <action android:name="com.coderefer.androidsplashscreenexample.MAINACTIVITY" />
                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>

        <activity
            android:name=".Splash"
            android:label="@string/app_name">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <!-- ATTENTION: This was auto-generated to add Google Play services to your project for
             App Indexing.  See https://g.co/AppIndexing/AndroidStudio for more information. -->
        <meta-data
            android:name="com.google.android.gms.version"
            android:value="@integer/google_play_services_version" />
    </application>

</manifest>

splash活动：

package andy.propaganda;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.ImageView;

/**
 * Created by Andrew on 2/4/2016.
 */
public class Splash extends Activity {

    //welcome animation
    ImageView loading_img;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.splash);
        loading_img = (ImageView)findViewById(R.id.loading_view);
        final Animation animatable = AnimationUtils.loadAnimation(this, R.anim.welcome_screen_anim);
        loading_img.setAnimation(animatable);

//
        for(int i = 0;i< 100000000;i++);
        Intent intent = new Intent(this, shit.class);
        intent.putExtra("jhjh", 8);
        startActivity(intent);

    }

}

main活动：

package andy.propaganda;

import android.app.Activity;
import android.os.Bundle;

/**
 * Created by Andrew on 2/5/2016.
 */
public class shit extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }
}

splash.xml：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent" android:layout_height="match_parent"
    android:background="@color/MyBlue"
    >
    <ImageView
        android:layout_width="300dp"
        android:layout_height="300dp"
        android:src="@drawable/my_launcher"
        android:paddingTop="60dp"
        android:id="@+id/imageView"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true" />

    <ImageView
        android:layout_width="75dp"
        android:layout_height="75dp"
        android:src="@drawable/loading"
        android:layout_marginBottom="43dp"
        android:id="@+id/loading_view"

        android:layout_alignParentBottom="true"
        android:layout_centerHorizontal="true" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:text="loading your files"
        android:id="@+id/welcome_message"
        android:focusable="false"
        android:textColor="#010101"
        android:textSize="@dimen/abc_action_bar_progress_bar_size"
        android:layout_above="@+id/loading_view"
        android:layout_alignRight="@+id/imageView"
        android:layout_alignEnd="@+id/imageView"
        android:layout_marginBottom="50dp" />

</RelativeLayout>

Answer 1

您应该在启动画面而不是for(int i = 0;i< 100000000;i++);上使用计时器，它会等待一段时间，假设为5秒，而不是加载另一个活动。

package andy.propaganda;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.ImageView;

/**
 * Created by Andrew on 2/4/2016.
 */
public class Splash extends Activity {

    //welcome animation
    ImageView loading_img;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.splash);
        loading_img = (ImageView)findViewById(R.id.loading_view);
        final Animation animatable = AnimationUtils.loadAnimation(this, R.anim.welcome_screen_anim);
        loading_img.setAnimation(animatable);



     new Timer().schedule(new TimerTask() {          
    @Override
    public void run() {
        // your task
        Intent intent = new Intent(this, shit.class);
        intent.putExtra("jhjh", 8);
        startActivity(intent);
    }
   }, 5000);

    }

}

Answer 2

首先，不要使用循环等待时间而不是使用处理程序，如下所示：

new Handler().postDelayed(new Runnable() {
                @Override
                public void run() {
                    startActivity(new Intent(Splash.this, shit.class));
                    finish();
                }
            }, 500);

然后从manifest.xml中删除此行：

<intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>

其余代码似乎没问题：）

另请参阅this链接，其中详细解释了启动画面。

Answer 3

RxJava解决方案：

Observable.empty().subscribeOn(AndroidSchadelurs.mainThread()).delay(500, TimeUtils.MILISECONDS).subscribe(this::startActivity(this, new Intent));

闪屏显示为空白屏幕

3 个答案: