Question

我是Android新手，我正在开发一个应用程序。我想运行启动画面，但在我的代码中有错误，启动画面只是打开并停留在同一页面，但它没有打开下一个活动，请任何人帮助我。我的主要目标是，＃34;对于新用户，首先应使用Setpassword.java活动打开启动画面（并且密码应存储在sharedpreference中），但是当用户设置密码并关闭时应用程序和重新打开时，应该直接使用enterpassword.java活动打开启动画面，即跳过setpassword。 Java活动：

package com.example.shiva.secretbook;
import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import android.widget.TextView;

import java.util.logging.Handler;

/**
* Created by shiva on 8/12/2017.
*/
public class SplashScreenActivity extends Activity {
String password;
ImageView imageViewSplash;
TextView txtAppName;
RelativeLayout relativeLayout;
Thread SplashThread;

 @Override
 protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_splash_screen);
     // load password
    SharedPreferences settings = getSharedPreferences("PREFS", 0);
    password = settings.getString("password", "");
    imageViewSplash = (ImageView) findViewById(R.id.imageViewSplash);
    txtAppName = (TextView) findViewById(R.id.txtAppName);
    relativeLayout = (RelativeLayout) findViewById(R.id.relative);
    startAnimations();
}

private void startAnimations(){
    Animation rotate = AnimationUtils.loadAnimation(this,R.anim.rotate);
    Animation translate = AnimationUtils.loadAnimation(this, 
R.anim.translate);

    rotate.reset();
    translate.reset();
    relativeLayout.clearAnimation();

    imageViewSplash.startAnimation(rotate);
    txtAppName.startAnimation(translate);
    SplashThread = new Thread(){
        @Override
        public void run() {
            super.run();
            int waited = 0;
            while (waited < 3500) {
                try {
                    sleep(100);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                waited += 100;

            }
            if (password.equals("")){
                // if there is no password
                SplashScreenActivity.this.finish();
                Intent intent = new 
  Intent(SplashScreenActivity.this,setpassword.class);
                intent.setFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
                startActivity(intent);
                finish();
            } else {

                //if there is a password
                Intent intent = new 
    Intent(SplashScreenActivity.this,enterpassword.class);
                intent.setFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
                startActivity(intent);
                finish();
    } SplashThread.start();
    }


};
}}

Answer 1

试试这个

    protected void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);

     getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
     requestWindowFeature(Window.FEATURE_NO_TITLE);
     setContentView(new SplashEnvironment(this, this));
     new Handler().postDelayed(new Runnable() {

    @Override
    public void run() {
       if (password.equals("")){
            // if there is no password
            SplashScreenActivity.this.finish();
            Intent intent = new 
          Intent(SplashScreenActivity.this,setpassword.class);
            intent.setFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
            startActivity(intent);
            finish();
        } else {

            //if there is a password
            Intent intent = new 
Intent(SplashScreenActivity.this,enterpassword.class);
            intent.setFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
            startActivity(intent);
            finish();
}
        // close this activity
    }
   }, 3000);// time for spalsh screen

Answer 2

     new Handler().postDelayed(new Runnable() {
                @Override
                public void run() {
                   if (password.equals(""))
               {
                // if there is no password
                Intent intent = new Intent(SplashScreenActivity.this,setpassword.class);
                intent.setFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
                startActivity(intent);
                finish();
              } else
              {
                //if there is a password
                Intent intent = new Intent(SplashScreenActivity.this,enterpassword.class);
                intent.setFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
                startActivity(intent);
                finish();
                }
                }
            }, 3500);

Answer 3

尝试以下代码

public void StartAnimation(){
        new Handler().postDelayed(new Runnable() {

            @Override
            public void run() {

                if (password.equals("")){
                    // if there is no password
                    SplashScreenActivity.this.finish();
                    Intent intent = new
                            Intent(SplashScreenActivity.this,setpassword.class);
                    intent.setFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
                    startActivity(intent);
                    finish();
                } else {

                    //if there is a password
                    Intent intent = new
                            Intent(SplashScreenActivity.this,enterpassword.class);
                    intent.setFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
                    startActivity(intent);
                    finish();
                }
            }
        }, 5000);
    }

Answer 4

尝试以下代码

TestBox

Answer 5

你在线程创建中启动了你的线程（SplashThread.start（）;）。

由于这个原因你的线程无法启动。所以只需将这一行放在适当的地方即。

SplashThread = new Thread（）{

}; SplashThread.start（）;

splashscreen下一个活动没有开放

5 个答案: