Question

我有意图问题。我在主要活动中使用它并调用另一个活动但是再次单击其调用主要活动。这是我的代码

主要活动.java

package com.umair.facebook; 

import android.app.Activity; 
import android.content.Intent; 
import android.os.Bundle; 
import android.view.View; 
import android.widget.Button; 
import android.widget.EditText; 
import android.widget.ImageView; 
import android.widget.TextView; 

public class MainActivity extends Activity { 

    ImageView img1; 
    TextView txt, txt3; 
    Button like, share, update; 
    EditText et1; 

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

        setContentView(R.layout.activity_main); 

        img1 = (ImageView) findViewById(R.id.img); 
        txt = (TextView) findViewById(R.id.name); 
        txt3 = (TextView) findViewById(R.id.status); 
        like = (Button) findViewById(R.id.Like); 
        share = (Button) findViewById(R.id.Share); 
        update = (Button) findViewById(R.id.Comment); 
        et1 = (EditText) findViewById(R.id.editText1); 

        like.setOnClickListener(new View.OnClickListener() { 
            @Override public void onClick(View v) { 
                // TODO Auto-generated method stub 
                like.setText("Liked"); 
             } 
         }); 

         share.setOnClickListener(new View.OnClickListener() { 
             @Override 
             public void onClick(View v) { 
                 // TODO Auto-generated method stub 
                 share.setText("Shared"); 
             } 
         }); 

         update.setOnClickListener(new View.OnClickListener() { 
             @Override 
             public void onClick(View v) { 
                 // TODO Auto-generated method stub startGame(); 
             } 
         }); 
     } 

     private void startGame() { 
         // TODO Auto-generated method stub 
         Intent lanuchGame = new Intent(MainActivity.this, Result.class); 
         startActivity(lanuchGame); 
      } 
 }

Result.java（第二个活动）

 package com.umair.facebook; 
 import android.os.Bundle; 
 import android.widget.Button; 
 import android.widget.EditText; 
 import android.widget.ImageView; 
 import android.widget.TextView; 

 public class Result extends MainActivity { 

     ImageView img; 
     TextView txt1, txt2;
     Button btn1, btn2,btn3; 
     EditText et; 

     @Override 
     protected void onCreate(Bundle savedInstanceState) { 
         // TODO Auto-generated method stub
         setContentView(R.layout.result_1); 
         super.onCreate(savedInstanceState); 

         img =(ImageView)findViewById(R.id.img1); 
         txt1= (TextView)findViewById(R.id.nam); 
         txt2= (TextView)findViewById(R.id.stats); 
         btn1=(Button)findViewById(R.id.Liked); 
         btn2=(Button)findViewById(R.id.Shared); 
         et=(EditText)findViewById(R.id.editText); } }

Answer 1

在第二个super.onCreate(savedInstanceState)中 setContentView()之前致电Activity 。

在eclipse android中发表意图

1 个答案: