Android Handler值传递(文)
发送消息:
public static class TimeReceiver extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { String time = intent.getStringExtra("time"); String contentDate = formatDate(time); Message msg = handler.obtainMessage(); msg.obj = context;//发送context上下文 msg.getData().putString("contentDate", contentDate);//发送内容 handler.sendMessage(msg); } }
接收消息:
static Handler handler = new Handler() { public void handleMessage(Message msg) { Context context = (Context) msg.obj; String titles = null; String contents = null; String contentDate = msg.getData().getString("contentDate"); Toast.makeText(context, contentDate , Toast.LENGTH_LONG).show(); WordsManage wordManage = new WordsManage(context); // 从数据库中通过时间匹配查询数据 wordManage.open(); Cursor cursor = wordManage.selectByTime(contentDate); if (cursor != null && cursor.getCount() == 1) { while (cursor.moveToNext()) { titles = cursor.getString(cursor.getColumnIndex("title")); contents = cursor.getString(cursor .getColumnIndex("content")); } } wordManage.close(); mContent.setText(titles); mContent.setText(contents); }; };
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