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我正在尝试使用此代码在纵向时打开proximitywakelock，在横向时关闭proximitywakelock，但它始终保持活动状态：

//in onCreate() of my Activity

    PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
    mProximityWakeLock = pm.newWakeLock(32, ""); // proximity_wake_lock=32
    mProximityWakeLock.setReferenceCounted(false);

    if (getResources().getConfiguration().orientation != Configuration.ORIENTATION_LANDSCAPE) {
        Toast.makeText(this, "non landascape", Toast.LENGTH_SHORT).show();

        if (!mProximityWakeLock.isHeld()) {
            mProximityWakeLock.acquire();
            Toast.makeText(this, "acquired", Toast.LENGTH_SHORT).show();
        }

        if (!mProximityWakeLock.isHeld())
            Toast.makeText(this, "not held", Toast.LENGTH_SHORT).show();
        else
            Toast.makeText(this, " held", Toast.LENGTH_SHORT).show();

    } else {

        if (!mProximityWakeLock.isHeld())
            Toast.makeText(this, "not held", Toast.LENGTH_SHORT).show();
        else
            Toast.makeText(this, " held", Toast.LENGTH_SHORT).show();

        Toast.makeText(this, "landascape", Toast.LENGTH_SHORT).show();

        if (mProximityWakeLock.isHeld()) {
            mProximityWakeLock.release();
            Toast.makeText(this, "released", Toast.LENGTH_SHORT).show();
        }

    }

看起来它在风景中从未举行过......isHeld()实际上是如何工作的？代码有什么问题？

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1 回答 1

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我看起来你每次旋转屏幕时都在创建一个新的唤醒锁并且没有持有新的唤醒锁。

如果您查看日志，您可能会看到有关泄漏唤醒锁的信息。

于 2012-02-17T13:27:39.350 回答