使用以下代码 fragment ，我试图获取已输入到 EditText 中的文本值。

LayoutInflater factory = LayoutInflater.from(this);
final View loginView = factory.inflate(R.layout.login, null);

b.setOnClickListener(new OnClickListener() {
    public void onClick(View v) {
        Dialog d = new AlertDialog.Builder(NewOrder.this)
            .setIcon(R.drawable.icon)
            .setTitle("Log In")
            .setView(loginView)
            .setPositiveButton("Log In", new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int whichButton) {
                    mSpinner = ProgressDialog.show(mContext, "", "Authenticating User...");
                    new LoginTask().execute();
                }
            })
            .setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int whichButton) {
                    /* User clicked cancel so do some stuff */
                }
            })
            .create();
        d.show();
    }
});

我的 login.xml 非常标准且直接:

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical">

    <TextView
        android:id="@+id/username_view"
        android:layout_height="wrap_content"
        android:layout_width="wrap_content"
        android:layout_marginLeft="20dip"
        android:layout_marginRight="20dip"
        android:text="Email Address"
        android:gravity="left"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <EditText
        android:id="@+id/username"
        android:layout_height="wrap_content"
        android:layout_width="fill_parent"
        android:layout_marginLeft="20dip"
        android:layout_marginRight="20dip"
        android:scrollHorizontally="true"
        android:autoText="false"
        android:capitalize="none"
        android:gravity="fill_horizontal"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <TextView
        android:id="@+id/password_view"
        android:layout_height="wrap_content"
        android:layout_width="wrap_content"
        android:layout_marginLeft="20dip"
        android:layout_marginRight="20dip"
        android:text="Password"
        android:gravity="left"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <EditText
        android:id="@+id/password"
        android:layout_height="wrap_content"
        android:layout_width="fill_parent"
        android:layout_marginLeft="20dip"
        android:layout_marginRight="20dip"
        android:scrollHorizontally="true"
        android:autoText="false"
        android:capitalize="none"
        android:gravity="fill_horizontal"
        android:password="true"
        android:textAppearance="?android:attr/textAppearanceMedium" />

</LinearLayout>

当有人点击 PositiveButton 时，我如何获取 EditText 字段的值？

最佳答案

.setPositiveButton("Log In", new DialogInterface.OnClickListener() {
    public void onClick(DialogInterface dialog, int whichButton) {
        mSpinner =  ProgressDialog.show(mContext, "", "Authenticating     User...");

        /* == Get EditText Values Example == */
        EditText edtext_username=  (EditText) findViewById(R.id.username);
        EditText edtext_password=  (EditText) findViewById(R.id.password);

        String ValueofUsername = edtext_username.getText().toString(); 
        String ValueofPassword = edtext_password.getText().toString();
        /* ========== End Example ========== */

        new LoginTask().execute();
    }
})

关于android - 使用 Layout 在 AlertDialog 构建器中检索 EditText 的值，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/3295200/