Question

我想为我的Android应用程序制作启动画面。我在android studio中的welcomescreen.java中编写了以下代码。但在运行应用程序后，应用程序已停止。 :(我现在该怎么办？

package com.mateors.welcomescreen;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;

public class WelcomeScreen extends AppCompatActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_welcome_screen);
    Thread myThread = new Thread(){
        @Override
        public void run() {
            try {
                sleep(5000);
                Intent intent = new Intent(getApplicationContext(), MainActivity.class);
                startActivity(intent);
                finish();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }

        }
    };
    myThread.start();
}
}

Answer 1

private static int SPLASH_TIME_OUT = 1500;
     @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.splash_screen);


            new Handler().postDelayed(new Runnable() {
                @Override
                public void run() {
                    Intent i = new Intent(WelcomeScreen.this, MainActivity.class);
                    startActivity(i);
                    finish();
                }
            }, SPLASH_TIME_OUT);
        }

尝试上面的代码段

Answer 2

尝试使用以下代码：

package com.mateors.welcomescreen;

import android.support.v7.app.AppCompatActivity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;

public class WelcomeScreen extends AppCompatActivity {

    private static int SPLASH_TIME_OUT = 5000;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_welcome_screen);

        new Handler().postDelayed(new Runnable() {
            @Override
            public void run() {
                Intent i = new Intent(WelcomeScreen.this, MainActivity.class);
                startActivity(i);
                finish();
            }
        }, SPLASH_TIME_OUT);
    }
}

启动画面Android App已经停止

2 个答案: