PutEtras崩潰活動援助

Question

大家好我在這個網站上找到了關於putEtras的一個答案，但是當我嘗試使用它時，我的應用程序崩潰了，我嘗試了一切，並沒有發現錯誤。我確信它是一些小事，但我無法檢測它是什麼，所以我再次詢問這裏尋求幫助我......

第一類：

package com.orion.peky.thetapgame; 

import android.app.Activity; 
import android.content.Intent; 
import android.os.Bundle; 
import android.os.CountDownTimer; 
import android.view.View; 
import android.widget.TextView; 
import com.google.android.gms.ads.*; 


public class Game extends Activity { 
    TextView tekst, vrijeme; 
    int brojac=0, provjera=0; 
    CountDownTimer Count; 
    Intent i =new Intent(Game.this,Score.class); 
    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_game); 
     tekst=(TextView)findViewById(R.id.tekst); 
     vrijeme=(TextView)findViewById(R.id.vrijeme); 
     /*AdView adView=(AdView)this.findViewById(R.id.adView); 
     AdRequest adRequest = new AdRequest.Builder().build(); 
     adView.loadAd(adRequest);*/ 
     Count = new CountDownTimer(10000, 1) { 
      public void onTick(long millisUntilFinished) { 
       int seconds = (int) ((millisUntilFinished/1000)); 
       vrijeme.setText(seconds + "." + millisUntilFinished % 1000); 
      } 
      public void onFinish(){ 
       i.putExtra("prijenos",brojac); 
       startActivity(i); 
       finish(); 
      }}; 
    } 

    public void broji(View view){ 
     if(provjera==0){ 
      Count.start(); 
      brojac++; 
      provjera++; 
      tekst.setText("Tapped " + brojac + " times"); 
     }else { 
      brojac++; 
      tekst.setText("Tapped " + brojac + " times"); 
     } 
    } 
} 

，第2活動：

package com.orion.peky.thetapgame; 

import android.app.Activity; 
import android.content.Intent; 
import android.os.Bundle; 
import android.widget.TextView; 


public class Score extends Activity { 
    int primljeno=1; 
    TextView prikazati=(TextView)findViewById(R.id.prikazbodova); 
    Bundle dodatak; 
    Intent inte=getIntent(); 
    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_score); 
     dodatak=inte.getExtras(); 
     primljeno=dodatak.getInt("prijenos"); 
     prikazati.setText("You tapped "+primljeno+" times"); 
    } 
} 

我已經找到索姆e答案如下： How to put Extras to different activity? 但開始第二項活動仍然存在一些問題。 我知道adView已被註銷，但我不想製造假裝！ 請不要將其標記爲重複，因爲它不是！ ：D

Answer 1

您的問題是您在實際附加活動之前過早調用Intent inte=getIntent();和TextView prikazati=(TextView)findViewById(R.id.prikazbodova);。移動

Intent inte=getIntent(); 
TextView prikazati=(TextView)findViewById(R.id.prikazbodova); 

內onCreate

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_score); 
    Intent inte=getIntent(); 
    dodatak=inte.getExtras(); 
    TextView prikazati=(TextView)findViewById(R.id.prikazbodova);