android - 单击按钮时将值从主 Activity 传递到广播接收器类

Question

我想将值从 MainActivity 类传递到 BroadCast Receiver 类。此编码是在 MainActivity 中完成的。我是否还必须在 list 文件中提及此操作(“android.intent.action.AIRPLANE_MODE”)？？

    public void broadcastIntent(View v){
                if(togglebutton.isChecked()){
                Intent i=new Intent("android.intent.action.AIRPLANE_MODE");
                String x="heyo";
                i.putExtra("xx", x);
                sendBroadcast(i);
                }else{
                }



Class x extending BroadcastReceiver....    

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

                in.getExtras();
                String action=in.getAction();
                if(action.equals("android.intent.action.AIRPLANE_MODE")){
                    String u=in.getExtras().get("xx").toString();
                    Toast.makeText(context,"hi " +u, Toast.LENGTH_LONG).show();

                }else{
                Toast.makeText(context,"Intent detected", Toast.LENGTH_LONG).show();
            }
            }

Answer 1

使用共享首选项。有一些 tutorial关于那个。

public void broadcastIntent(View v){
    Activity activity = (Activity) view.getContext()
    SharedPreferences sharedPref = activity.getPreferences(Context.MODE_PRIVATE);
    SharedPreferences.Editor editor = sharedPref.edit();
    editor.putString("xx",x);
    editor.commit();
    Intent i=new Intent("android.intent.action.AIRPLANE_MODE");
    sendBroadcast(i);
}

然后是你的 broadcastReceiver 代码。

Class x extending BroadcastReceiver....    

        public void onReceive(Context context, Intent in) {
            SharedPreferences sharedPref = context.getPreferences(Context.MODE_PRIVATE);
            String xx = sharedPref.getString("xx", "");
 }