java - 打开/关闭声音按钮不起作用

Question

我在我的设置 Activity 中发现，当用户单击 ToggleButton 时，它应该在整个应用程序中静音，但它不起作用。我在教程类中放入的 SoundPool onClick 按钮声音仍在 onClick 上播放声音。我已经使用 ToggleButton 指定我的共享首选项。

这是我的代码，

    package com.fullfrontalgames.numberfighter;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.media.AudioManager;
import android.media.SoundPool;
import android.os.Bundle;
import android.preference.Preference;
import android.preference.PreferenceManager;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.ToggleButton;


public class Settings extends Activity {











    @Override
    public void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.settings);


        Button Notifications = (Button) findViewById(R.id.Notifications);
        Button Done = (Button) findViewById(R.id.done);
        Button AccountSettings = (Button) findViewById(R.id.AccountSettings);
        final ToggleButton AT = (ToggleButton) findViewById(R.id.AudioToggle);



        AT.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                SharedPreferences appPrefs =
                        getSharedPreferences("com.fullfrontalgames.numberfighter.Settings_preferences",
                                MODE_PRIVATE);
                SharedPreferences.Editor editor = appPrefs.edit();
                editor.putBoolean("atpref", AT.isChecked()); //value to store
                editor.commit();

                if ((AT.isChecked())) {
                    AT.setSoundEffectsEnabled(true);

                  } else {
                    AT.setSoundEffectsEnabled(false);
                      }
                 }

        });







        SharedPreferences appPrefs =
                getSharedPreferences("com.fullfrontalgames.numberfighter.Settings_preferences",
                MODE_PRIVATE);
        boolean atpref = appPrefs.getBoolean("atpref", true); //default is true
        AT.setChecked(atpref);
        Done.setOnClickListener(new View.OnClickListener() {








            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                Intent Intent = new Intent(Settings.this,activity_main.class);
                Intent.setFlags(android.content.Intent.FLAG_ACTIVITY_CLEAR_TOP);
                startActivity(Intent);



            }
        });
        Notifications.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                startActivity(new Intent("com.fullfrontalgames.numberfighter.Notifications"));
            }
        });
        AccountSettings.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                startActivity(new Intent("com.fullfrontalgames.numberfighter.AccountSettings"));
            }
        });









    }

Answer 1

根据doc setSoundEffectsEnabled

Set whether this view should have sound effects enabled for events such as clicking and touching.

You may wish to disable sound effects for a view if you already play sounds, for instance, a dial key that plays dtmf tones.

所以这个函数应该关闭 View 的声音效果(如点击或触摸)。不设置设备声音的开关。

出于您的目的，请检查 AudioManager