Question

我有一个按钮，当我点击该按钮时会打开一个对话框。在该对话框中有一个EditText和ok按钮，当我单击该文本显示的ok按钮时，我输入一些文本我不知道怎么会这样做，帮帮我

Answer 1

使用以下

 import android.app.Activity;
 import android.app.AlertDialog;
  import android.content.Context;
      import android.content.DialogInterface;
   import android.os.Bundle;
    import android.view.LayoutInflater;
 import android.view.View;
    import android.view.View.OnClickListener;
   import android.widget.Button;
    import android.widget.EditText;

 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 view= li.inflate(R.layout.prompts, null);

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

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

            final EditText userInput = (EditText) view
                    .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

希望这会对你有所帮助

 AlertDialog.Builder alert = new AlertDialog.Builder(con);
                final EditText input = new EditText(con);
                String s="your text";

                alert.setView(input);
                alert.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int whichButton) {
                        String value = input.getText().toString().trim();
                        Toast.makeText(con, value, Toast.LENGTH_SHORT).show();
                    }
                });
                alert.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int whichButton) {
                        dialog.cancel();
                    }
                });
                alert.show();

Answer 3

我会用尽可能少的代码带你完成这些步骤，因为我认为这会帮助你学到更多（比这里的其他答案）：

在按钮上设置OnClickListener，您需要启动对话框
在XML中为对话框创建自定义视图，并将其命名为custom_box.xml
之后，在OnClick方法中，使用以下命令将该自定义xml设置为对话框：

final Dialog dialog = new Dialog(context);
dialog.setContentView(R.layout.custom_box);

使用Java连接Button和EditText，就像使用Activity一样，但现在使用dialog.findViewById（R.id ...）代替this.findViewById（...），如同在Activity中
在对话框中为Button设置OnClickListener，并从那里调用dismiss and change text action。

如果您需要，也可以链接到相当不错的tutorial，这里是Android documentation。

Answer 4

public class MainActivity extends Activity {

final Context context = this;
private Button button;
private TextView result;
private TextView result2;

public void onCreate(Bundle savedInstanceState) {

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

 // components from main.xml
 button = (Button) findViewById(R.id.button1);
 result = (TextView) findViewById(R.id.textView1);
 result2 = (TextView) findViewById(R.id.textView2);

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

   @Override
   public void onClick(View arg0) {

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

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

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

       final EditText userInput = (EditText) view
               .findViewById(R.id.edit1);
       final EditText userInput2 = (EditText) view
               .findViewById(R.id.edit2);

       // 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());
               result2.setText(userInput2.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();

   }
 });
}

}

这是我的确切答案

Answer 5

here是解释如何在Android中创建自定义对话框的链接，这将有助于您

Answer 6

Call ForgetPswPopUp() method name


 public void ForgetPswPopUp() {
                AlertDialog.Builder alertDialog = new AlertDialog.Builder(
                        HomeActivity.this);
                alertDialog.setTitle("set Title");
                final EditText input = new EditText(HomeActivity.this);
                input.setHint("Textbox hint");
                LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(
                        LinearLayout.LayoutParams.MATCH_PARENT, position);
                input.setLayoutParams(lp);
                alertDialog.setView(input);
                alertDialog.setNegativeButton("Button name",
                        new DialogInterface.OnClickListener() {
                            public void onClick(DialogInterface dialog, int which) {
                                dialog.cancel();
                            }
                        });
                alertDialog.show();
            }

Android自定义对话框

6 个答案: