Question

我正在使用displayDialog方法...它可以工作，但Eclipse向我显示了一个警告：

showDialog(showRetry ? 1 : 0);

方法：

   private void displayDialog(final boolean showRetry) {
                    mHandler.post(new Runnable() {
                        public void run() {
                            setProgressBarIndeterminateVisibility(false);
                            showDialog(showRetry ? 1 : 0);
                        }
                    });
                }

搜索我发现类似的问题，其中看到现在有 FragmentManager 可以用来避免这个问题，但我不明白我怎么能用来修复我的问题特定场景保持与Froyo和GingerBread的复古兼容性。

你能帮帮我吗？

完整的类代码是：

 public class Home extends Activity {
        private static final String BASE64_PUBLIC_KEY = "mykeywithoutspaces";

        // Generate your own 20 random bytes, and put them here.
        private static final byte[] SALT = new byte[] {
            -00, 00, 30, -2, -58, -57, 00, -64, 51, 32, -95, -45, 13, -6, -36, -15, -11, 32, -64,
            89
        };

        private TextView mStatusText;
        private Button mCheckLicenseButton;

        private LicenseCheckerCallback mLicenseCheckerCallback;
        private LicenseChecker mChecker;
        // A handler on the UI thread.
        private Handler mHandler;

        @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
            setContentView(R.layout.main);

            mStatusText = (TextView) findViewById(R.id.status_text);
buttonNewDoc = (ImageButton) findViewById(R.id.btNewDoc);
        buttonNewDoc.setOnClickListener(mNewDoc);
            mCheckLicenseButton = (Button) findViewById(R.id.check_license_button);
            mCheckLicenseButton.setOnClickListener(new View.OnClickListener() {
                public void onClick(View view) {
                    doCheck();
                }
            });

            mHandler = new Handler();

            // Try to use more data here. ANDROID_ID is a single point of attack.
            String deviceId = Secure.getString(getContentResolver(), Secure.ANDROID_ID);

            // Library calls this when it's done.
            mLicenseCheckerCallback = new MyLicenseCheckerCallback();
            // Construct the LicenseChecker with a policy.
            mChecker = new LicenseChecker(
                this, new ServerManagedPolicy(this,
                    new AESObfuscator(SALT, getPackageName(), deviceId)),
                BASE64_PUBLIC_KEY);
            doCheck();
        }

        protected Dialog onCreateDialog(int id) {
            final boolean bRetry = id == 1;
            return new AlertDialog.Builder(this)
                .setTitle(R.string.unlicensed_dialog_title)
                .setMessage(bRetry ? R.string.unlicensed_dialog_retry_body : R.string.unlicensed_dialog_body)
                .setPositiveButton(bRetry ? R.string.retry_button : R.string.buy_button, new DialogInterface.OnClickListener() {
                    boolean mRetry = bRetry;
                    public void onClick(DialogInterface dialog, int which) {
                        if ( mRetry ) {
                            doCheck();
                        } else {
                            Intent marketIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(
                                    "http://market.android.com/details?id=" + getPackageName()));
                                startActivity(marketIntent);                        
                        }
                    }
                })
                .setNegativeButton(R.string.quit_button, new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int which) {
                        finish();
                    }
                }).create();
        }

        private void doCheck() {
buttonNewDoc.setEnabled(false);
            mCheckLicenseButton.setEnabled(false);
            setProgressBarIndeterminateVisibility(true);
            mStatusText.setText(R.string.checking_license);
            mChecker.checkAccess(mLicenseCheckerCallback);
        }

        private void displayResult(final String result) {
            mHandler.post(new Runnable() {
                public void run() {
                    mStatusText.setText(result);
                    setProgressBarIndeterminateVisibility(false);
                    mCheckLicenseButton.setEnabled(true);
                }
            });
        }

        private void displayDialog(final boolean showRetry) {
            mHandler.post(new Runnable() {
                public void run() {
                    setProgressBarIndeterminateVisibility(false);
                    showDialog(showRetry ? 1 : 0);
                }
            });
        }    

        private class MyLicenseCheckerCallback implements LicenseCheckerCallback {
            public void allow(int policyReason) {
                if (isFinishing()) {
                    // Don't update UI if Activity is finishing.
                    return;
                }

                // Should allow user access.
                displayResult(getString(R.string.allow));
buttonNewDoc.setEnabled(false);
            }

            public void dontAllow(int policyReason) {
                if (isFinishing()) {
                    // Don't update UI if Activity is finishing.
                    return;
                }
                displayResult(getString(R.string.dont_allow));
                // Should not allow access. In most cases, the app should assume
                // the user has access unless it encounters this. If it does,
                // the app should inform the user of their unlicensed ways
                // and then either shut down the app or limit the user to a
                // restricted set of features.
                // In this example, we show a dialog that takes the user to Market.
                // If the reason for the lack of license is that the service is
                // unavailable or there is another problem, we display a
                // retry button on the dialog and a different message.
                displayDialog(policyReason == Policy.RETRY);
            }

            public void applicationError(int errorCode) {
                if (isFinishing()) {
                    // Don't update UI if Activity is finishing.
                    return;
                }
                String result = String.format(getString(R.string.application_error), errorCode);
                displayResult(result);
            }
        }

        @Override
        protected void onDestroy() {
            super.onDestroy();
            mChecker.onDestroy();
        }

    }

Answer 1

科特琳：

private void removeDuplicates(List<String> list) {
        int count = list.size();
        for (int i = 0; i < count; i++) {
            for (int j = i + 1; j < count; j++) {
                if (list.get(i).equals(list.get(j))) {
                    list.remove(j--);
                    count--;
                }
            }
        }
        count = list.size();

        if (count >= 3) {
            query1 = list.get(0);
            query2 = list.get(1);
            query3 = list.get(2);
        }
        else if (count >= 2) {
            query1 = list.get(0);
            query2 = list.get(1);
            query3 = "";
        }
        else if (count >= 1) {
            query1 = list.get(0);
            query2 = "";
            query3 = "";
        }
        else {
            query1 = "";
            query2 = "";
            query3 = "";
        }



        Log.d("One", query1);
        Log.d("Two", query2);
        Log.d("Three", query3);
    }

Answer 2

您的活动应该是FragmentActivity的子类，可以在v4 support library中找到，您应该将其添加到项目中。然后，您可以使用FragmentManager获取getSupportFragmentManager()的引用，以显示DialogFragment。您必须使用对话框所需的布局和逻辑创建一个DialogFragment类。以下是您通过FragmentActivity

显示的方式

FragmentManager fm = getSupportFragmentManager();
YourDialogFragment yourDialog = new YourDialogFragment();
yourDialog.show(fm, "some_optional_tag");

以下是概述：http://android-developers.blogspot.com/2012/05/using-dialogfragments.html

Answer 3

谷歌似乎在这个例子中使用的是更改“受保护的Dialog onCreateDialog（int id）{”，以便在内部调用它总是被称为“showDialog（showRetry？1：0）;”创建重试/取消的默认对话框。

我建议使用以下代码，创建一个方便的方法来创建标准对话框，并更改或删除“onCreateDialog（）”，因为这是不必要的。

protected Dialog onCreateDialog(int id) {
    return CreateDialogRetryCancel(id);
}

public Dialog CreateDialogRetryCancel(int id) {
    final boolean bRetry = id == 1;
    return new AlertDialog.Builder(this)
        .setTitle(R.string.unlicensed_dialog_title)
        .setMessage(bRetry ? R.string.unlicensed_dialog_retry_body : R.string.unlicensed_dialog_body)
        .setPositiveButton(bRetry ? R.string.retry_button : R.string.buy_button, new DialogInterface.OnClickListener() {
            boolean mRetry = bRetry;
            public void onClick(DialogInterface dialog, int which) {
                if ( mRetry ) {
                    doCheck();
                } else {
                    Intent marketIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(
                            "http://market.android.com/details?id=" + getPackageName()));
                        startActivity(marketIntent);                        
                }
            }
        })
        .setNegativeButton(R.string.quit_button, new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int which) {
                finish();
            }
        }).create();
}

private void displayDialog(final boolean showRetry) {
    mHandler.post(new Runnable() {
        public void run() {
            setProgressBarIndeterminateVisibility(false);
            CreateDialogRetryCancel(showRetry ? 1 : 0).show();
            //showDialog(showRetry ? 1 : 0);
            mCheckLicenseButton.setEnabled(true);
        }
    });
}

Answer 4

FragmentManager fm = getSupportFragmentManager();
yourDialog.show(fm, "some_optional_tag");

仅在制作DialogFragment时导入正确的类（即getSupportFragmentManager()

时，import android.support.v4.app.DialogFragment才被接受

如何使用FragmentManager替换已弃用的showDialog

4 个答案: