如何在Android上的对话框中设置视图
我使用以下代码在对话框中设置视图:如何在Android上的对话框中设置视图,android,dialog,Android,Dialog,我使用以下代码在对话框中设置视图: LayoutInflater inflater = LayoutInflater.from(this); View layout = inflater.inflate(R.layout.mylayout, null); TextView MyTextView = (TextView)findViewById(R.id.my_tv); MyTextView.setText("test"); AlertDialog MyDialog; AlertDialog.Bu
LayoutInflater inflater = LayoutInflater.from(this);
View layout = inflater.inflate(R.layout.mylayout, null);
TextView MyTextView = (TextView)findViewById(R.id.my_tv);
MyTextView.setText("test");
AlertDialog MyDialog;
AlertDialog.Builder MyBuilder = new AlertDialog.Builder(this);
MyBuilder.setTitle("title");
MyBuilder.setView(layout);
MyDialog = MyBuilder.create();
MyDialog.show();
my_tv是mylayout.xml中的文本视图。但它在第
MyTextView.setText(“test”)行出现空指针错误代码>
如何修改它 实例化“MyTextView”时,应使用以下代码进行实例化:
TextView MyTextView = (TextView)layout.findViewById(R.id.my_tv);