Question

在这个例子中，首先我开始活动课程在我调用startservice（），我从服务类的oncreate方法得到“in on create”的吐司在服务类中，我做了这个编码

public void onCreate() {
        // TODO Auto-generated method stub
        super.onCreate();
        Toast.makeText(getApplicationContext(), "in on create", Toast.LENGTH_SHORT).show();

    }

public void onStart(Intent arg0, int startId) {
        // TODO Auto-generated method stub
        super.onStart(arg0, startId);

    }

    public void broadcastIntent(View view)
       {
          Intent intent = new Intent();
          intent.setAction("android.intent.action.PHONE_STATE");
          sendBroadcast(intent);
       }

在广播接收器类我做了这个

public void onReceive(Context context, Intent intent) {
        // TODO Auto-generated method stub

        String state = intent.getStringExtra(TelephonyManager.EXTRA_STATE);
        if (state.equals(TelephonyManager.EXTRA_STATE_RINGING)) {
            Toast.makeText(context,"Phone is Ringing", Toast.LENGTH_LONG).show();
            Intent i=new Intent(context,MainActivity.class);
            i.putExtra("state", state);
            context.startActivity(i);

        }


    }

在清单文件中我做了......

<uses-permission android:name="android.permission.READ_PHONE_STATE"/>


<receiver 
            android:name="Start">

            </receiver> 
            <service 
                android:name="Run"></service>

Answer 1

在清单中声明接收器......

    <receiver
        android:name=".Start"
        android:priority="999" >
        <intent-filter>
            <action android:name="android.intent.action.PHONE_STATE" />
        </intent-filter>
    </receiver>

此处android:name=".Start"代表BroadcastReceiver的班级名称。此处Start是BroadcastReceiver的类名，其包名称等于Application的包名称（您的应用的包名称），并且您不允许手动发送android.intent.action.PHONE_STATE广播

来自评论，这可能会对您有所帮助。

    toggleButton
            .setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {

                @Override
                public void onCheckedChanged(CompoundButton buttonView,
                        boolean isChecked) {
                    buttonView
                            .getContext()
                            .getSharedPreferences("app_preference",
                                    Context.MODE_PRIVATE).edit()
                            .putBoolean("IS_RECEIVER_ENABLED", isChecked)
                            .commit();

                }
            });

并在onReceive()

    @Override
    public void onReceive(Context context, Intent intent) {
        boolean isEnabled = context.getSharedPreferences("app_preference",
                Context.MODE_PRIVATE).getBoolean("IS_RECEIVER_ENABLED",
                false);
        if (isEnabled) {
            // Show Toast here.
        }
    }

如何在服务类中使用broadcastreceiver类

1 个答案: