Question

你能告诉我如何在android中使用Timer显示启动画面。我可以使用线程显示，但是线程是不错的选择，你能告诉我处理这个的最佳方法吗？使用线程像这样

package com.example.splash_test;

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

public class MainActivity extends Activity {
    protected int _splashTime = 5000; 

    private Thread splashTread;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

         splashTread = new Thread() {
             @Override
             public void run() {
                 try {                       
                     synchronized(this){
                             wait(_splashTime);
                     }

                 } catch(InterruptedException e) {} 
                 finally {
                     finish();

                     Intent i = new Intent();
                     i.setClass(MainActivity.this, SecondActivity.class);
                             startActivity(i);

                     //stop();
                 }
             }
         };

         splashTread.start();
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

}

Answer 1

这个片段非常有助于设计一个计时器。试试这个......

new Timer().schedule(new TimerTask() {          
    @Override
    public void run() {
        startActivity(new Intent(getApplicationContext(), MainActivity.class));
    }
}, 5000);

这里我在5秒钟后开始MainActivity。只需将此代码放入您的启动活动的onCreate()。

Answer 2

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

public class SplashScreen extends Activity {

protected int _splashTime = 2000;

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

    int secondsDelayed = 1;
    new Handler().postDelayed(new Runnable() {
        public void run() {
            startActivity(new Intent(SplashScreen.this,
                    SecondActivity.class));
            finish();
        }
    }, secondsDelayed * 1000);
}

}

Answer 3

你也可以插入你的onCreate：

SystemClock.sleep(TimeUnit.SECONDS.toMillis(3));

P.S。检查SplashScreen link的这种实现。

Answer 4

  public ItineraryDataEntry(final ItineraryDataEntryBuilder builder) {
    this.type = builder.type;
    this.field01 = builder.field01;
    this.field02 = builder.field02;
    this.field03 = builder.field03;
    this.field04 = builder.field04;
    this.field05 = builder.field05;
    this.field06 = builder.field06;
    this.field07 = builder.field07;
    this.field08 = builder.field08;
    this.field09 = builder.field09;
    this.field10 = builder.field10;
    this.field11 = builder.field11;
    this.field12 = builder.field12;
    this.field13 = builder.field13;
    this.field14 = builder.field14;
    this.legNumber = builder.legNumber;
    this.origin = builder.origin;
    this.destination = builder.destination;
    this.carrier = builder.carrier;
    this.fareBasisCode = builder.fareBasisCode;
    this.serviceClass = builder.serviceClass;
    this.flightDate = builder.flightDate;
    this.departureTime = builder.departureTime;
  }
...

    public ItineraryDataEntryBuilder origin(final String param) {
      this.origin = param;
      return this;
    }

    public ItineraryDataEntryBuilder destination(final String param) {
      this.destination = param;
      return this;
    }

    public ItineraryDataEntryBuilder carrier(final String param) {
      this.carrier = param;
      return this;
    }
...

Answer 5

new Handler().postDelayed(new Runnable() {

/*
 * Showing splash screen with a timer. This will be useful when you
 * want to show case your app logo / company
 */

    @Override
    public void run() {
        // This method will be executed once the timer is over
        // Start your app main activity

            Intent i = new Intent(SplashScreen.this, YourActivity.class);
            startActivity(i);

        // close this activity
        finish();
    }
}, 1000);

Answer 6

Kotlin 方式

Timer().schedule(object : TimerTask() {
        override fun run() {
            startActivity(Intent(applicationContext, MainActivity::class.java))
        }
    }, 3000)

如何在android中使用Timer显示启动画面？

6 个答案: