Android 中的奇怪行为

发布于 2024-11-03 08:40:26 字数 1070 浏览 1 评论 0原文

大家好，我一直在努力寻找这种奇怪行为的原因。我有一项服务将参加来电，其代码如下：

Intent i = new Intent(Intent.ACTION_MEDIA_BUTTON);
    KeyEvent event = new KeyEvent(KeyEvent.ACTION_DOWN,
            KeyEvent.KEYCODE_HEADSETHOOK);
    i.putExtra(Intent.EXTRA_KEY_EVENT, event);

    ctx.sendOrderedBroadcast(i, null);

    Intent buttonUp = new Intent(Intent.ACTION_MEDIA_BUTTON);
    buttonUp.putExtra(Intent.EXTRA_KEY_EVENT, new KeyEvent(
            KeyEvent.ACTION_UP, KeyEvent.KEYCODE_HEADSETHOOK));
    ctx.sendOrderedBroadcast(buttonUp,
                    "android.permission.CALL_PRIVILEGED");

上面的代码工作很酷。我有一个活动，可以播放存储在 SD 卡中的一些简单的音频文件。其代码如下：

Intent intent = new Intent(android.content.Intent.ACTION_VIEW);         
        Uri data = Uri.parse("file://"+Environment.getExternalStorageDirectory()
                .getAbsolutePath()+"/" + fileName);
        String type = "audio/mp3";
        intent.setDataAndType(data, type);
        startActivity(intent);

这也工作得很好。但问题是，一旦要播放的第二个活动开始并完成，参加通话的第一部分就会停止工作。我不知道为什么会这样。有谁能说出其中的原因吗？

原文

hi guys i have been struggling to find the reason for this strange behaviour. I have a service which will attend the incomming call and that code as follows:

Intent i = new Intent(Intent.ACTION_MEDIA_BUTTON);
    KeyEvent event = new KeyEvent(KeyEvent.ACTION_DOWN,
            KeyEvent.KEYCODE_HEADSETHOOK);
    i.putExtra(Intent.EXTRA_KEY_EVENT, event);

    ctx.sendOrderedBroadcast(i, null);

    Intent buttonUp = new Intent(Intent.ACTION_MEDIA_BUTTON);
    buttonUp.putExtra(Intent.EXTRA_KEY_EVENT, new KeyEvent(
            KeyEvent.ACTION_UP, KeyEvent.KEYCODE_HEADSETHOOK));
    ctx.sendOrderedBroadcast(buttonUp,
                    "android.permission.CALL_PRIVILEGED");

And the above code works cool. And i have a activity from where i can play some simple audio file stored in the sdcard. And the code for that follows:

Intent intent = new Intent(android.content.Intent.ACTION_VIEW);         
        Uri data = Uri.parse("file://"+Environment.getExternalStorageDirectory()
                .getAbsolutePath()+"/" + fileName);
        String type = "audio/mp3";
        intent.setDataAndType(data, type);
        startActivity(intent);

and this too works fine. but the problem is that once the second activity thats to play is started and finished the first part to attend the call stops working. i dont know why it is happening like this. Can anybody tel the reason for that.

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故事和酒 2024-11-10 08:40:26

粘贴评论以删除未答复的问题。请下次回答你自己的问题。

大家好，经过一天的努力找到了解决方案。我所做的只是
而不是发送orderedBroadcast，只需发送广播即可
现在工作正常...... ctx.sendBroadcast(i);而不是
ctx.sendOrderedBroadcast(i,"android.permission.CALL_PRIVILEGED");

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