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ProgressDialog未与BroadcastReceiver一起关闭

android-broadcastreceiver android-broadcast android-wifi progressdialog android

0

Raju-san · 技术社区 · 10 年前

我正在使用 广播接收机 监控 无线局域网 状态更改。

我想展示 进度对话框 在操作期间。

它显示正确,但未关闭。

我的代码如下:

private final BroadcastReceiver mBluetoothChangeReceiver = new BroadcastReceiver()
{
    @Override
    public void onReceive(Context context, Intent intent)
    {
        final String action = intent.getAction();

        if (action.equals(BluetoothAdapter.ACTION_STATE_CHANGED))
        {
            final int state = intent.getIntExtra(BluetoothAdapter.EXTRA_STATE, BluetoothAdapter.ERROR);
            switch (state)
            {
            case BluetoothAdapter.STATE_OFF:
                Log.i(TAG, "STATE_OFF");
                showProgress(false);
                // showToast("Bluetooth off");
                break;
            case BluetoothAdapter.STATE_TURNING_OFF:
                Log.i(TAG, "STATE_TURNING_OFF");
                showProgress(true);
                // showToast("Turning Bluetooth off...");
                break;
            case BluetoothAdapter.STATE_ON:
                Log.i(TAG, "STATE_ON");
                showProgress(false);
                // showToast("Bluetooth on");
                break;
            case BluetoothAdapter.STATE_TURNING_ON:
                Log.i(TAG, "STATE_TURNING_ON");
                showProgress(true);
                // showToast("Turning Bluetooth on...");

                break;
            }
        }
    }
};


public void showProgress(boolean show)
{
    ProgressDialog mProgressDialog;
    mProgressDialog = new ProgressDialog(ShortcutActivity.this);

    mProgressDialog.setMessage(mContext.getString(R.string.settings_msg));
    if (show)
    {
        mProgressDialog.setCancelable(false);
        if (!mProgressDialog.isShowing())
            mProgressDialog.show();
    }
    else
    {
        Log.i(TAG, " " + mProgressDialog.isShowing());
        mProgressDialog.setCancelable(true);
        if (mProgressDialog.isShowing())
        {
            mProgressDialog.dismiss();
        }
    }
}`

如果我的实现包含任何错误,请向我建议解决方案。或者我的实施方式是错误的。

4 回复 | 直到 10 年前

1

Shivani Gupta 10 年前

将以下内容作为全局变量
```
ProgressDialog mProgressDialog;
```

OnCreate()

mProgressDialog = new ProgressDialog(ShortcutActivity.this);
mProgressDialog.setMessage(mContext.getString(R.string.settings_msg));

3.

private final BroadcastReceiver mBluetoothChangeReceiver = new BroadcastReceiver()
{
@Override
public void onReceive(Context context, Intent intent)
{
    final String action = intent.getAction();

    if (action.equals(BluetoothAdapter.ACTION_STATE_CHANGED))
    {
        final int state = intent.getIntExtra(BluetoothAdapter.EXTRA_STATE, BluetoothAdapter.ERROR);
        switch (state)
        {
        case BluetoothAdapter.STATE_OFF:
            Log.i(TAG, "STATE_OFF");
            showProgress(false);
            // showToast("Bluetooth off");
            break;
        case BluetoothAdapter.STATE_TURNING_OFF:
            Log.i(TAG, "STATE_TURNING_OFF");
            showProgress(true);
            // showToast("Turning Bluetooth off...");
            break;
        case BluetoothAdapter.STATE_ON:
            Log.i(TAG, "STATE_ON");
            showProgress(false);
            // showToast("Bluetooth on");
            break;
        case BluetoothAdapter.STATE_TURNING_ON:
            Log.i(TAG, "STATE_TURNING_ON");
            showProgress(true);
            // showToast("Turning Bluetooth on...");

            break;
        }
    }
}

};

4.

 public void showProgress(boolean show)
  {

if (show)
{
    mProgressDialog.setCancelable(false);
    if (!mProgressDialog.isShowing())
        mProgressDialog.show();
}
else
{
    Log.i(TAG, " " + mProgressDialog.isShowing());
    mProgressDialog.setCancelable(true);
    if (mProgressDialog.isShowing())
    {
        mProgressDialog.dismiss();
    }
}}

2

1

long zefang 10 年前

在showProgress方法中,每次调用它时都会创建一个新的Progress对话框。您必须关闭现有的ProgressDialog(当前显示的那个),而不是新创建的那个。

那个权利

3

0

Raju-san 10 年前

我创建了 ProgressDialog mProgressDialog; 从外面开始 onCreate() 像

mProgressDialog = new ProgressDialog(ShortcutActivity.this); 。现在工作正常。

谢谢你的建议

4

0

Amit 10 年前

您需要在“showProgress”方法外部和showProgress方法内部声明mProgressDialog,如果mProgressDialog为空,则初始化它

private final BroadcastReceiver mBluetoothChangeReceiver = new BroadcastReceiver()
{

    @Override
    public void onReceive(Context context, Intent intent)
    {
        final String action = intent.getAction();

        if (action.equals(BluetoothAdapter.ACTION_STATE_CHANGED))
        {
            final int state = intent.getIntExtra(BluetoothAdapter.EXTRA_STATE, BluetoothAdapter.ERROR);
            switch (state)
            {
            case BluetoothAdapter.STATE_OFF:
                Log.i(TAG, "STATE_OFF");
                showProgress(false);
                // showToast("Bluetooth off");
                break;
            case BluetoothAdapter.STATE_TURNING_OFF:
                Log.i(TAG, "STATE_TURNING_OFF");
                showProgress(true);
                // showToast("Turning Bluetooth off...");
                break;
            case BluetoothAdapter.STATE_ON:
                Log.i(TAG, "STATE_ON");
                showProgress(false);
                // showToast("Bluetooth on");
                break;
            case BluetoothAdapter.STATE_TURNING_ON:
                Log.i(TAG, "STATE_TURNING_ON");
                showProgress(true);
                // showToast("Turning Bluetooth on...");

                break;
            }
        }
    }
};

ProgressDialog mProgressDialog;
public void showProgress(boolean show)
{
    if (mProgressDialog == null)
        mProgressDialog = new ProgressDialog(ShortcutActivity.this);

    mProgressDialog.setMessage(mContext.getString(R.string.settings_msg));
    if (show)
    {
        mProgressDialog.setCancelable(false);
        if (!mProgressDialog.isShowing())
            mProgressDialog.show();
    }
    else
    {
        Log.i(TAG, " " + mProgressDialog.isShowing());
        mProgressDialog.setCancelable(true);
        if (mProgressDialog.isShowing())
        {
            mProgressDialog.dismiss();
        }
    }
}