Alertdialog无法正常显示视图

Question

我想创建一个AlertDialog来检查两个密码是否匹配。问题是，当我从布局中充填视图时，对话框不会显示，OK和Cancel按钮也不会显示只有EditText上显示，并且太在Mainactivity.This是使用自定义对话框我用这样far.Could有人帮我这个

@Override 
protected Dialog onCreateDialog(int id) { 
    switch (id) { 
    case MY_PASSWORD_DIALOG_ID: 
     LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
     final View layout = inflater.inflate(R.layout.activity_main, (ViewGroup) findViewById(R.id.root)); 
     final EditText password1 = (EditText) layout.findViewById(R.id.EditText_Pwd1); 
     final EditText password2 = (EditText) layout.findViewById(R.id.EditText_Pwd2); 
     final TextView error = (TextView) layout.findViewById(R.id.TextView_PwdProblem);    


      AlertDialog.Builder builder=new AlertDialog.Builder(this); 
      builder.setTitle("Enter Password"); 
      builder.setView(layout); 
      builder.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() { 

       public void onClick(DialogInterface dialog, int whichButton) { 
         finish(); 
        } 
       }); 
       builder.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() { 

       public void onClick(DialogInterface dialog, int which) { 
         String strPassword1 = password1.getText().toString(); 
         String strPassword2 = password2.getText().toString(); 
         if (strPassword1.equals(strPassword2)) { 
         Toast.makeText(MainActivity.this, 
          "Matching passwords="+strPassword2, Toast.LENGTH_SHORT).show(); 
         } 

        } 
       }); 
       AlertDialog passwordDialog = builder.create(); 
       return passwordDialog; 
     } 

    return null; 
} 

Answer 1

试试这个代码，

。然后你不使用默认的AlertDialog.setPositiveButton。您可以使用只有你customview按钮只是试试这个，

private Dialog mForgetPasswordDialog; 
mForgetPasswordDialog = new Dialog(Signin.this); 
    mForgetPasswordDialog.requestWindowFeature(Window.FEATURE_NO_TITLE); 
    mForgetPasswordDialog.setContentView(R.layout.forget_password); 
    mForgetPasswordDialog.setCancelable(true); 
    edtGetmailId = (EditText) mForgetPasswordDialog 
      .findViewById(R.id.edtGetEmailId); 
    TextView btnOk = (TextView) mForgetPasswordDialog 
      .findViewById(R.id.btnOk); 
    btnOk.setOnClickListener(new OnClickListener() { 
     @Override 
     public void onClick(View v) { 

     // do your stuff 
     } 
    }); 

    TextView btnCancel = (TextView) mForgetPasswordDialog 
      .findViewById(R.id.btnCancel); 
    btnCancel.setOnClickListener(new OnClickListener() { 
     @Override 
     public void onClick(View v) { 
      // TODO Auto-generated method stub 
      mForgetPasswordDialog.dismiss(); 
     } 
    }); 
    mForgetPasswordDialog.show();