Question

我的应用程序在启动画面后停止工作 - 请记住，这是我开发的第一个Android应用程序。非常感谢帮助。

SplashScreen.java：

package tomperry.goodlife;

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


public class SplashScreen extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.splash);
    Thread timerThread = new Thread() {
        public void run() {
            try {
                sleep(3000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            } finally {
                Intent intent = new Intent();
                startActivity(intent);
            }
        }
    };
    timerThread.start();
}

@Override
protected void onPause() {
    super.onPause();
    finish();
}
}

AndroidManifist.xml

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

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme">

        <activity android:name=".SplashScreen"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN"
></action>
            <category android:name="android.intent.category.LAUNCHER"/>
            </intent-filter>
        </activity>

        <activity android:name=".MainActivity"
            android:label="@string/app_name">
            <intent-filter>

                <action android:name="tomperry.goodlife.MAINACTIVITY" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>

    </application>

</manifest>

Answer 1

您的Intent为空。你没告诉他去哪儿。将其替换为finally块 -

Intent intent = new Intent(SplashScreen.this, NextActivity.class); //Change "NextActivity" as your need 
startActivity(intent);
finish();

Answer 2

您尚未提及主要活动。

试试这个

Intent intent = new Intent(getApplicationContext(), MainActivity.class);
startActivity(intent);

而不是

Intent intent = new Intent();
startActivity(intent);

Answer 3

从清单文件中的主要活动中删除意图过滤器

<intent-filter>

                <action android:name="tomperry.goodlife.MAINACTIVITY" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>

Answer 4

您没有添加目的地去哪里。在最后阻止你的Intent是空的。所以将此代码行更改为finally块：

ProcessBuilder

到

Intent intent = new Intent();

Answer 5

只需将finally块替换为：

startActivity(new Intent(Splashscreen.this,MainActivity.class));

Android App＆＃34;停止工作＆＃34;启动画面后

5 个答案: