从 sub activity 返回的结果代码不正确

Question

我有一个 activity 启动子 activity 的结果。当 sub activity 启动时，在其 finish() 方法中，我将一些数据添加到包中 bunConnAssets

然后将此包添加到意图 intConnAssets，最后调用 setResult(RESULT_OK, intConnAssets);

问题是，在运行时，当我关闭子activity，因此它的finish()方法被调用时，mainActivity中的onActivityResult是被调用但是里面的 switch-case 没有被调用。但是

else {
            Log.d(TAG, "resultCode != RESULT_OK");
        }

被调用意味着从 subActivity 返回的 resutCode 不正确

为什么会这样？

子活动:

@Override
public void finish() {
    // TODO Auto-generated method stub
    super.finish();
    Log.w(TAG, "@finish().");

    if (this.mqttSettingsDB != null) {
        Log.d(TAG, "this.mqttSettingsDB is not null.");

        int[] id = this.mqttSettingsDB.getIDs();
        Bundle bunConnAssets = new Bundle();
        Intent intConnAssets = new Intent();
        ....
        ....
        ....
        intConnAssets.putExtras(bunConnAssets);
        setResult(RESULT_OK, intConnAssets);

    } else {
        Log.wtf(TAG, "this.mqttSettingsDB is null.");
    }
}

onActivityResult:

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    // TODO Auto-generated method stub
    super.onActivityResult(requestCode, resultCode, data);
    Log.d(TAG, "onActivityResult");

    switch (requestCode) {
    case REQUEST_CODE:
        if (resultCode == RESULT_OK) {
            if (data != null) {
                if (data.hasExtra("bunConnAssets")) {
                    Log.d(TAG, "Bundle exists");
                } else {
                    Log.d(TAG, "Bundle does not exist");
                }
            }
        } else {
            Log.d(TAG, "resultCode != RESULT_OK");
        }
        break;

    default:
        Log.e(TAG, "Unexpected RequestCode.");
        break;
    }
}

Answer 1

你在第一行调用了super.finish()，所以后面的代码可能不会执行。

在代码末尾调用 super 方法。

Answer 2

试试下面的代码

@Override
public void finish() {

    Log.w(TAG, "@finish().");

    if (this.mqttSettingsDB != null) {
        Log.d(TAG, "this.mqttSettingsDB is not null.");

        int[] id = this.mqttSettingsDB.getIDs();
        Bundle bunConnAssets = new Bundle();
        Intent intConnAssets = new Intent();
        ....
        ....
        ....
        intConnAssets.putExtras(bunConnAssets);
        setResult(RESULT_OK, intConnAssets);

    } else {
        Log.wtf(TAG, "this.mqttSettingsDB is null.");
    }
    super.finish();
}

从 sub activity 返回的结果代码不正确

the result code returned from sub activity is not OK

android

start-activity

onactivityresult