將活動內容帶到對話框

Question

我想製作一個自定義對話框，在該對話框中我想通過按鈕進行呼叫，並通過無按鈕取消對話框。但在對話框中的文本視圖中，我想要確認對話框顯示「Call：number」。我在主Activity中從用戶那裏得到了這個否，並且我無法將這個No帶給Dialog。我怎樣才能做到這一點？ 我嘗試了意圖和共享首選項，但都是徒勞的。給我建議。

我在主活動類中編寫了以下代碼。

package com.example.deepak.phone_call; 

import android.Manifest; 
import android.app.Activity; 
import android.app.Dialog; 
import android.content.Intent; 
import android.content.SharedPreferences; 
import android.content.pm.PackageManager; 
import android.net.Uri; 
import android.support.v4.app.ActivityCompat; 
import android.support.v7.app.AppCompatActivity; 
import android.os.Bundle; 
import android.view.View; 
import android.view.Window; 
import android.widget.Button; 
import android.widget.EditText; 
import android.widget.TextView; 
import android.widget.Toast; 

public class MainActivity extends Activity implements View.OnClickListener { 
    Button b; 
    EditText edittext1; 
    SharedPreferences sharedPreferences; 
    SharedPreferences.Editor edit; 



    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 
     b = (Button) findViewById(R.id.button); 
     b.setOnClickListener(this); 
     edittext1=(EditText)findViewById(R.id.edittext1); 
     String number=edittext1.getText().toString(); 
     sharedPreferences = getSharedPreferences("mydata",MODE_PRIVATE); 
     edit= sharedPreferences.edit(); 
       edit.putString("s1",number); 
     edit.commit(); 

     // Intent intent = new Intent(this, phone_call.class); 
     // intent.putExtra("s1",number); 

    } 
    private void phoneDialog(){ 

     Dialog dialog = new Dialog(MainActivity.this); 

     dialog.setContentView(R.layout.phone_call); 

     dialog.setTitle("Call:"); 

     dialog.show(); 

    } 

     @Override 
    public void onClick(View v) { 
      phoneDialog(); 

    } 
} 

和下面的代碼，我在其中設置了對話框。

import android.app.Activity; 
import android.app.Dialog; 
import android.content.Intent; 
import android.content.SharedPreferences; 
import android.net.Uri; 
import android.os.Bundle; 
import android.view.View; 
import android.view.Window; 
import android.widget.Button; 
import android.widget.EditText; 
import android.widget.TextView; 
import android.widget.Toast; 

/** 
* Created by Deepak on 7/5/2016. 
*/ 
public class phone_call extends Activity implements View.OnClickListener { 
Button button2,button3; 
    TextView editText; 
    SharedPreferences shredpreference; 
    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.phone_call); 
     button2= (Button) findViewById(R.id.button2); 
     button2.setOnClickListener(this); 
     button3= (Button) findViewById(R.id.button3); 
     button3.setOnClickListener(this); 

     editText = (TextView) findViewById(R.id.editText); 
     //Intent intent = getIntent(); 
     //String s1= intent.getStringExtra("s1"); 

shredpreference = getSharedPreferences("mydata",0); 
     String s1= shredpreference.getString("s1","null"); 
     editText.setText("Call"+ s1+":"); 

    } 

    @Override 
    public void onClick(View v) { 
     //Intent intent = getIntent(); 
     // String s1= intent.getStringExtra("s1"); 
     shredpreference = getSharedPreferences("mydata",0); 
     String s1= shredpreference.getString("s1","null"); 

     switch (v.getId()) { 
      case R.id.button2: 
       Intent callIntent = new Intent(Intent.ACTION_CALL); 
       callIntent.setData(Uri.parse("tel:" +s1));//change the number 


       try{ 
        startActivity(callIntent); 
       } 

       catch (android.content.ActivityNotFoundException ex){ 
        Toast.makeText(getApplicationContext(),"yourActivity is not founded",Toast.LENGTH_SHORT).show(); 
       } 
       break; 
      case R.id.button3: 
       finishActivity(100); 
       break; 
     } 

    } 
} 

Answer 1

你已經把代碼在錯誤的地方存儲的值，因此，它是在OnCreate（）methos它不會隨時拍攝值，

所以從onCreate（）方法，並刪除下面兩行如下所示將它寫入onCLick（）方法。

 @Override 
    public void onClick(View v) 
    { 
      String number = edittext1.getText().toString(); 
      edit.putString("s1",number); 
      edit.commit(); 

      phoneDialog(); 

    }