启动画面后的活动

Question

一旦我的启动画面显示1000毫秒，我收到一条错误，指出“应用程序已意外停止。请再试一次。” 这似乎是一个活动，应该在启动画面不起作用后启动。 在启动画面之前，一切正常。 Logcat显示以下错误“E / AndroidRuntime（5480）：java.lang.RuntimeException：无法启动活动ComponentInfo {com.xxxxx.home / com.xxxxx.home.xxxxx}：java.lang.NullPointerException。我相信这个问题是我的Splash Class但不能指出哪里。任何见解都将非常感激。

公共类Splash extends Activity {

private final int SPLASH_DISPLAY_LENGTH = 1000;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.splash);


    new Handler().postDelayed(new Runnable(){
        @Override
        public void run() {

            Intent openxxxxx = new Intent("com.xxxxx.home.XXXXX");
            startActivity(openxxxxx);

        }
    }, SPLASH_DISPLAY_LENGTH);
}

}

Answer 1

这是您可以使用的完整代码，

package com.fsp.slideview;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.MotionEvent;
import android.view.Window;

public class ImageSplashActivity extends Activity {
    /**
     * The thread to process splash screen events
     */
    private Thread mSplashThread;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.splash);

        final ImageSplashActivity sPlashScreen = this;

        mSplashThread = new Thread() {
            @Override
            public void run() {
                try {
                    synchronized (this) {
                        wait(2000);
                    }
                } catch (InterruptedException ex) {
                }

                finish();
                Intent intent = new Intent();
                intent.setClass(sPlashScreen, SlideMainActivity.class);
                startActivity(intent);
            }
        };

        mSplashThread.start();
    }

    @Override
    public boolean onTouchEvent(MotionEvent evt) {
        if (evt.getAction() == MotionEvent.ACTION_DOWN) {
            synchronized (mSplashThread) {
                mSplashThread.notifyAll();
            }
        }
        return true;
    }
}