Question

我想在我的应用中实现SplashScreen。我发现最好和最简单的方法是在应用程序启动时启动一个显示带有图像视图的布局的活动，然后在清单中添加android：noHistory =“true”属性。现在，如何设置启动画面活动以在一定时间后启动MainActivity类？让我们说2秒钟？

这是我的启动画面活动

public class SplashActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.splashscreen);
}
}

Answer 1

使用

handler.postDelayed(runnable, delayinmilliseconds(2000 in your case));

final Runnable runnable = new Runnable()
{
    public void run() 
    {
       //start the new activity here.
    }
};

Answer 2

这是一个完整的样本。

package com.test.splash;

import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.widget.ImageView;

public class splash extends Activity {

    private static final int STOPSPLASH = 0;
    //time in milliseconds
    private static final long SPLASHTIME = 3000;a

    private ImageView splash;

    //handler for splash screen
    private Handler splashHandler = new Handler() {
        /* (non-Javadoc)
         * @see android.os.Handler#handleMessage(android.os.Message)
         */
        @Override
        public void handleMessage(Message msg) {
            switch (msg.what) {
            case STOPSPLASH:
                //remove SplashScreen from view
                splash.setVisibility(View.GONE);
                break;
            }
            super.handleMessage(msg);
        }
    };

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle icicle) {
        super.onCreate(icicle);
        setContentView(R.layout.main);
            splash = (ImageView) findViewById(R.id.splashscreen);
            Message msg = new Message();
            msg.what = STOPSPLASH;
            splashHandler.sendMessageDelayed(msg, SPLASHTIME);
    }
}

Answer 3

public class TrackMyMoneyActivity extends Activity {
//member fields
private ProgressBar pbar = null;
private TextView counter_txt = null;
Thread splash_thread = null;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    pbar = (ProgressBar) findViewById(R.id.splashpbar);
    counter_txt = (TextView) findViewById(R.id.countertxt);
    //define thread
    splash_thread = new Thread(new Runnable() {

        @Override
        public void run() {
            // TODO Auto-generated method stub
            int i = 0;
              for( i=0;i<100;i++){

                  pbar.setProgress(i);

                 // counter_txt.setText(i+" %");
                  try {
                    splash_thread.sleep(100);
                } catch (InterruptedException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
              }
              if(i==100){
                  Intent intent = new Intent(getBaseContext(), LoginApp.class);
                  startActivity(intent);
              }
        }
    });
    splash_thread.start();

}
@Override
protected void onDestroy() {
    // TODO Auto-generated method stub
    super.onDestroy();


}

}

我希望它能解决你的解决方案。

Answer 4

您也可以这样使用java.util.Timer：

new Timer().schedule(new TimerTask(){
    public void run() { 
        startActivity(new Intent(SplashActivity.this, MainActivity.class));
    }
}, 2000 /*amount of time in milliseconds before execution*/ );

Answer 5

public class Splashscreen extends Activity 
    {
  private static final int SPLASH_TIME = 10 * 1000;// 3 seconds


  Button logo;
  @Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// requestWindowFeature(Window.FEATURE_NO_TITLE);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.splashscreen);
 setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
    try {
    new Handler().postDelayed(new Runnable() {

        public void run() {

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

            Splashscreen.this.finish();

            //overridePendingTransition(R.anim.fade_in, R.anim.fade_out);

        }


    }, SPLASH_TIME);

    new Handler().postDelayed(new Runnable() {
          public void run() {
                 } 
            }, SPLASH_TIME);
    } catch(Exception e){}
// METHOD 1     

/****** Create Thread that will sleep for 5 seconds *************/        
Thread background = new Thread() {
   public void run() {

       try {
           // Thread will sleep for 5 seconds
           sleep(50*1000);

           // After 5 seconds redirect to another intent
           Intent i=new Intent(getBaseContext(),MainActivity.class);
           startActivity(i);

           //Remove activity
           finish();

       } catch (Exception e) {

         }
       }
     };


     background.start();



      }

在一定时间后开一个活动？

5 个答案: