Question

我正在创建一个应用程序，我必须在其中显示具有EditText的Toast。是否可以在Toast中创建EditText？

Answer 1

您必须使用提示用户输入对话框。

步骤：

创建提示对话框布局XML文件。将提示对话框布局附加到AlertDialog.Builder。将AlertDialog.Builder附加到AlertDialog。

Yout layout / main_activity.xml

 <?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="fill_parent"
        android:orientation="vertical" >

        <Button
            android:id="@+id/buttonPrompt"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Show Prompt Dialog" />

        <EditText
            android:id="@+id/editTextResult"
            android:layout_width="match_parent"
            android:layout_height="wrap_content" >

        </EditText>

    </LinearLayout>

创建layout / promtps.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/layout_root"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical"
    android:padding="10dp" >

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Type Your Message : "
        android:textAppearance="?android:attr/textAppearanceLarge" />

    <EditText
        android:id="@+id/editTextDialogUserInput"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >

        <requestFocus />

    </EditText>

</LinearLayout>

您的主要活动：

public class MainActivity extends Activity {

    final Context context = this;
    private Button button;
    private EditText result;

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        // components from main.xml
        button = (Button) findViewById(R.id.buttonPrompt);
        result = (EditText) findViewById(R.id.editTextResult);

        // add button listener
        button.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View arg0) {

                // get prompts.xml view
                LayoutInflater li = LayoutInflater.from(context);
                View promptsView = li.inflate(R.layout.prompts, null);

                AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(
                        context);

                // set prompts.xml to alertdialog builder
                alertDialogBuilder.setView(promptsView);

                final EditText userInput = (EditText) promptsView
                        .findViewById(R.id.editTextDialogUserInput);

                // set dialog message
                alertDialogBuilder
                    .setCancelable(false)
                    .setPositiveButton("OK",
                      new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog,int id) {
                        // get user input and set it to result
                        // edit text
                        result.setText(userInput.getText());
                        }
                      })
                    .setNegativeButton("Cancel",
                      new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog,int id) {
                        dialog.cancel();
                        }
                      });

                // create alert dialog
                AlertDialog alertDialog = alertDialogBuilder.create();

                // show it
                alertDialog.show();

            }
        });
    }
}

Answer 2

如果我没记错的话，Toast不是可以获得焦点的视图。你所指的是对话。

Android中Toast内的EditText？

2 个答案: