Question

下午好，

我想打开一个输入对话框，并根据TextView＆＃39; labUrl＆＃39;的值设置＆＃39; editTextDialogUserInput＆＃39;的默认EditText值。有没有一种简单的方法来实现这一目标？

非常感谢你的帮助。

祝福，劳伦

package laurent.ch.domoos;

/**
 * Created by Laurent on 27.02.2016.
 */

import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.WindowManager;
import android.view.inputmethod.InputMethodManager;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity {

private Button btnStartDomoos;
private Button btnChangeUrl;
private TextView labUrl;
private EditText result;

public void onCreate(Bundle savedInstanceState) {
    final Context context = this;

    super.onCreate(savedInstanceState);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
    setContentView(R.layout.main);

    showToast();

    btnStartDomoos = (Button) findViewById(R.id.buttonUrl);
    btnChangeUrl = (Button) findViewById(R.id.btnChangeUrl);
    labUrl = (TextView) findViewById(R.id.labUrl) ;
    result = (EditText) findViewById(R.id.editTextDialogUserInput);

    btnStartDomoos.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View arg0) {
            Intent intent = new Intent(context, WebViewActivity.class);
            intent.putExtra("url", labUrl.getText().toString());

            startActivity(intent);
        }

    });

    btnChangeUrl.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View v) {
            // 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
                                    labUrl.setText(userInput.getText());

                                    InputMethodManager imm = (InputMethodManager) getApplicationContext().getSystemService(Context.INPUT_METHOD_SERVICE);
                                    imm.hideSoftInputFromWindow(userInput.getWindowToken(), 0);
                                }
                            })
                    .setNegativeButton("Cancel",
                            new DialogInterface.OnClickListener() {
                                public void onClick(DialogInterface dialog,int id) {

                                    InputMethodManager imm = (InputMethodManager) getApplicationContext().getSystemService(Context.INPUT_METHOD_SERVICE);
                                    imm.hideSoftInputFromWindow(userInput.getWindowToken(), 0);

                                    dialog.cancel();
                                }
                            });

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

            // show it
            alertDialog.show();
        }
    });
}

private void showToast(){
    Context context = getApplicationContext();
    CharSequence text = "Bienvenue dans Domoos ";
    int duration = Toast.LENGTH_SHORT;

    Toast toast = Toast.makeText(context, text, duration);
    toast.show();
}
}

Answer 1

您可以使用android popup library并尝试以下代码。它削减了很多切割器

package laurent.ch.domoos;

/**
 * Created by Laurent on 27.02.2016.
 */

import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.WindowManager;
import android.view.inputmethod.InputMethodManager;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity {

 private Button btnStartDomoos;
 private Button btnChangeUrl;
 private TextView labUrl;
 private EditText result;

 public void onCreate(Bundle savedInstanceState) {
  final Context context = this;

  super.onCreate(savedInstanceState);
  getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
  setContentView(R.layout.main);

  showToast();

  btnStartDomoos = (Button) findViewById(R.id.buttonUrl);
  btnChangeUrl = (Button) findViewById(R.id.btnChangeUrl);
  labUrl = (TextView) findViewById(R.id.labUrl);
  result = (EditText) findViewById(R.id.editTextDialogUserInput);

  btnStartDomoos.setOnClickListener(new OnClickListener() {

   @Override
   public void onClick(View arg0) {
    Intent intent = new Intent(context, WebViewActivity.class);
    intent.putExtra("url", labUrl.getText().toString());

    startActivity(intent);
   }

  });

  btnChangeUrl.setOnClickListener(new OnClickListener() {
   @Override
   public void onClick(View v) {
    InputMethodManager imm = (InputMethodManager) getApplicationContext().getSystemService(Context.INPUT_METHOD_SERVICE);
    Pop.on(MainActivity.this).with().layout(R.layout.prompts)
     .when(new Pop.Yah() {
      @Override
      public void clicked(DialogInterface dialog, View view) {
       imm.hideSoftInputFromWindow(userInput.getWindowToken(), 0);
       dialog.dismiss();
      }
     })
     .when(new Pop.Nah() {
      @Override
      public void clicked(DialogInterface dialog, View view) {
       imm.hideSoftInputFromWindow(userInput.getWindowToken(), 0);
       dialog.dismiss();
      }
     }).show(new Pop.View() {
      @Override
      public void prepare(View view) {
       EditText userInput = (EditText) view
        .findViewById(R.id.editTextDialogUserInput);
       userInput.setText(labUrl.getText());
      }
     });

   }
  });
 }

 private void showToast() {
  Context context = getApplicationContext();
  CharSequence text = "Bienvenue dans Domoos ";
  int duration = Toast.LENGTH_SHORT;

  Toast toast = Toast.makeText(context, text, duration);
  toast.show();
 }
}

Android系统。根据其他文本设置警告对话框的默认文本

1 个答案: