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如何在TextWatcher中关闭AlertDialog

android-alertdialog android

astric mobiles · 技术社区 · 8 年前

我有一个ALertDialog,允许用户输入一个pin号码。。当文本的长度与文本的长度匹配时,检查pin的长度是否正确。我正在尝试关闭/取消此对话框,当pin尝试成功时。我试过了对话框.关闭();以及对话框取消();但都没用。

为了清楚起见,我试图关闭if/else中“else”部分的AlertDialog。谢谢你的关注

代码:

 AlertDialog.Builder builder;

public void dialog() {

builder = new AlertDialog.Builder(getContext());
builder.setTitle("Title");
// I'm using fragment here so I'm using getView() to provide ViewGroup
// but you can provide here any other instance of ViewGroup from your Fragment / Activity
View viewInflated = LayoutInflater.from(getContext()).inflate(R.layout.pword, (ViewGroup) getView(), false);
// Set up the input
final EditText input = (EditText) viewInflated.findViewById(R.id.input);
// Specify the type of input expected; this, for example, sets the input as a password, and will mask the text
builder.setView(viewInflated);


builder.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
    @Override
    public void onClick(DialogInterface dialog, int which) {
        dialog.cancel();
        stopReader();
        startReader();
    }
});

builder.show();

input.addTextChangedListener(new TextWatcher() {
    @Override
    public void onTextChanged(CharSequence s, int start, int before, int count) {


    }

    @Override
    public void beforeTextChanged(CharSequence s, int start, int count, int after) {


    }

    @Override
    public void afterTextChanged(Editable s) {

        m_Text = input.getText().toString();

        if (m_Text.length() == details.get(2).length()) {
            if (!input.getText().toString().equals(details.get(2))) {
                Toast.makeText(MainActivity.mainActivity, "Incorrect pin entered!", Toast.LENGTH_SHORT).show();
                Log.d("eLOQ", "User pin is not correct");

                input.setText("");

            } else if (input.getText().toString().equals(details.get(2))) {
                controller.startStageTwo();
                Log.d("eLOQ", "User pin is correct");


                dialog.dismiss();
            }
        }


    }
});

}

2 回复 | 直到 8 年前

Rishav Singla 8 年前

你必须使用 对话框.关闭() 在正确的地方。只有在“用户pin正确”时才会减少对话框,但当“pin尝试成功”时,您不会关闭对话框。

 @Override
public void afterTextChanged(Editable s) {

    m_Text = input.getText().toString();

    if (m_Text.length() == details.get(2).length()) {
        if (!input.getText().toString().equals(details.get(2))) {
            Toast.makeText(MainActivity.mainActivity, "Incorrect pin entered!", Toast.LENGTH_SHORT).show();
            Log.d("eLOQ", "User pin is not correct");

            input.setText("");

        } else if (input.getText().toString().equals(details.get(2))) {
            controller.startStageTwo();
            Log.d("eLOQ", "User pin is correct");
     }
     dialog.dismiss();     // dismiss your dialog here. Here your dialog will dismiss in both caases
    }


}

Bholendra Singh 8 年前

dialog.hide(); or dialog.cancel();