Question

感谢阅读并抱歉我的英语。我的问题是我的Android应用程序应该显示带有imageview和textview的布局。它没有显示图像和文本的内容，它开始运行该活动的代码并启动下一个活动而不显示它。

¿如何在运行其余代码之前强制显示它？

感谢您的回复。

我的代码：

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

    //Inicio de la actividad:
    //1-Obtiene la IP del PC
    Intent i;
    String IP = getIP(); 
    if(IP == null){//Si no se ha obtenido la IP se pregunta si se desea salir o reintentarlo
        i = new Intent(this,ReintentarSalir.class);
        startActivity(i);
    }
    else{
        //2-Envia su IP al PC
        sendIP(IP);

        //3-Se pasa a la actividad en la que se pregunta si se desea enviar o recibir datos
        i = new Intent(this,EnviarRecibir.class);
        i.putExtra("IP", IP);
        startActivity(i);
        finish();
    }
    finish();
}

我希望在调用函数getIP（）

之前显示“lay_inicio”布局

Answer 1

如果您想要像启动画面一样的东西，那么请进行启动画面活动。使用线程显示它一段时间，然后启动另一个活动。像这样：

public class SplashScreen extends Activity {

    /**
     * The thread to process splash screen events
     */
    private Thread mSplashThread;
    private final static int SPLASH_SCREEN_TIME = 1500;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        requestWindowFeature(Window.FEATURE_NO_TITLE);
        // Splash screen view
        setContentView(R.layout.splash);

        final SplashScreen sPlashScreen = this;   

        // The thread to wait for splash screen events
        mSplashThread =  new Thread(){
            @Override
            public void run(){
                try {
                    synchronized(this){
                        // Wait given period of time or exit on touch
                        wait(SPLASH_SCREEN_TIME);
                    }
                }
                catch(InterruptedException ex){                    
                }

                // Run next activity
                Intent intent = new Intent();
                intent.setClass(sPlashScreen, HomeScreenActivity.class);
                intent.putExtra("showTheme", true);
                intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
                startActivity(intent);   
                finish();
            }
        };

        mSplashThread.start();        
    }

    /**
     * Processes splash screen touch events
     */
    @Override
    public boolean onTouchEvent(MotionEvent evt)
    {
        if(evt.getAction() == MotionEvent.ACTION_DOWN)
        {
            synchronized(mSplashThread){
                mSplashThread.notifyAll();
            }
        }
        return true;
    }    
}

布局显示为空

1 个答案: