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eliminate Interfaces used only internal to AppDetails class

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When dealing with complex lifecycles like Fragments, it is important
to expose the reliance of the Fragment on the Activity, since they
have different lifecycles.

Just cast to AppDetails instead of adding complexity with unneeded
Interfaces.  The actual instance and class will be the same with or
without the Interfaces, so it does not help with lifecycle issues.
The methods that implement the interfaces only hide the fact that they
rely on an active instance of AppDetails, which can lead to
lifecycle-related crashes.

This is a step along the way to streamlining AppDetails Activity so that it
only uses Fragments when they are beneficial.
This commit is contained in:
Hans-Christoph Steiner 2016-04-12 12:30:39 -04:00
parent 20c66a825d
commit 2e3d2c84ae
1 changed files with 34 additions and 89 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

123
app/src/main/java/org/fdroid/fdroid/AppDetails.java
View File

@ -97,27 +97,7 @@ import java.io.File;
import java.util.Iterator;
import java.util.List;
interface AppDetailsData {
App getApp();
AppDetails.ApkListAdapter getApks();
}
/**
* Interface which allows the apk list fragment to communicate with the activity when
* a user requests to install/remove an apk by clicking on an item in the list.
* <p/>
* NOTE: This is <em>not</em> to do with with the sudo/packagemanager/other installer
* stuff which allows multiple ways to install apps. It is only here to make fragment-
* activity communication possible.
*/
interface AppInstallListener {
void install(final Apk apk);
void removeApk(String packageName);
}
public class AppDetails extends AppCompatActivity implements AppDetailsData, AppInstallListener {
public class AppDetails extends AppCompatActivity {
private static final String TAG = "AppDetails";
@ -807,7 +787,6 @@ public class AppDetails extends AppCompatActivity implements AppDetailsData, App
}
// Install the version of this app denoted by 'app.curApk'.
@Override
public void install(final Apk apk) {
if (isFinishing()) {
return;
@ -881,7 +860,6 @@ public class AppDetails extends AppCompatActivity implements AppDetailsData, App
}
}
@Override
public void removeApk(String packageName) {
try {
installer.deletePackage(packageName);
@ -976,12 +954,10 @@ public class AppDetails extends AppCompatActivity implements AppDetailsData, App
}
}
@Override
public App getApp() {
return app;
}
@Override
public ApkListAdapter getApks() {
return adapter;
}
@ -989,7 +965,7 @@ public class AppDetails extends AppCompatActivity implements AppDetailsData, App
public static class AppDetailsSummaryFragment extends Fragment {
final Preferences prefs;
private AppDetailsData data;
private AppDetails appDetails;
private static final int MAX_LINES = 5;
private static boolean viewAllDescription;
private static LinearLayout llViewMoreDescription;
@ -1018,15 +994,7 @@ public class AppDetails extends AppCompatActivity implements AppDetailsData, App
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
data = (AppDetailsData) activity;
}
App getApp() {
return data.getApp();
}
ApkListAdapter getApks() {
return data.getApks();
appDetails = (AppDetails) activity;
}
@Override
@ -1085,7 +1053,7 @@ public class AppDetails extends AppCompatActivity implements AppDetailsData, App
private final View.OnClickListener mOnClickListener = new View.OnClickListener() {
public void onClick(View v) {
String url = null;
App app = getApp();
App app = appDetails.getApp();
switch (v.getId()) {
case R.id.website:
url = app.webURL;
@ -1138,7 +1106,7 @@ public class AppDetails extends AppCompatActivity implements AppDetailsData, App
};
private void setupView(final View view) {
App app = getApp();
App app = appDetails.getApp();
// Expandable description
final TextView description = (TextView) view.findViewById(R.id.description);
final Spanned desc = Html.fromHtml(app.description, null, new Utils.HtmlTagHandler());
@ -1264,8 +1232,8 @@ public class AppDetails extends AppCompatActivity implements AppDetailsData, App
}
Apk curApk = null;
for (int i = 0; i < getApks().getCount(); i++) {
final Apk apk = getApks().getItem(i);
for (int i = 0; i < appDetails.getApks().getCount(); i++) {
final Apk apk = appDetails.getApks().getItem(i);
if (apk.vercode == app.suggestedVercode) {
curApk = apk;
break;
@ -1277,7 +1245,7 @@ public class AppDetails extends AppCompatActivity implements AppDetailsData, App
final TextView permissionHeader = (TextView) view.findViewById(R.id.permissions);
final boolean curApkCompatible = curApk != null && curApk.compatible;
if (!getApks().isEmpty() && (curApkCompatible || prefs.showIncompatibleVersions())) {
if (!appDetails.getApks().isEmpty() && (curApkCompatible || prefs.showIncompatibleVersions())) {
// build and set the string once
buildPermissionInfo();
permissionHeader.setOnClickListener(expanderPermissions);
@ -1310,7 +1278,7 @@ public class AppDetails extends AppCompatActivity implements AppDetailsData, App
private void buildPermissionInfo() {
final TextView permissionListView = (TextView) llViewMorePermissions.findViewById(R.id.permissions_list);
CommaSeparatedList permsList = getApks().getItem(0).permissions;
CommaSeparatedList permsList = appDetails.getApks().getItem(0).permissions;
if (permsList == null) {
permissionListView.setText(R.string.no_permissions);
} else {
@ -1362,7 +1330,7 @@ public class AppDetails extends AppCompatActivity implements AppDetailsData, App
return;
}
App app = getApp();
App app = appDetails.getApp();
TextView signatureView = (TextView) view.findViewById(R.id.signature);
if (prefs.expertMode() && !TextUtils.isEmpty(app.installedSig)) {
signatureView.setVisibility(View.VISIBLE);
@ -1375,7 +1343,7 @@ public class AppDetails extends AppCompatActivity implements AppDetailsData, App
public static class AppDetailsHeaderFragment extends Fragment implements View.OnClickListener {
private AppDetailsData data;
private AppDetails appDetails;
private Button btMain;
private ProgressBar progressBar;
private TextView progressSize;
@ -1396,14 +1364,6 @@ public class AppDetails extends AppCompatActivity implements AppDetailsData, App
.build();
}
private App getApp() {
return data.getApp();
}
private ApkListAdapter getApks() {
return data.getApks();
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.app_details_header, container, false);
@ -1414,11 +1374,11 @@ public class AppDetails extends AppCompatActivity implements AppDetailsData, App
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
data = (AppDetailsData) activity;
appDetails = (AppDetails) activity;
}
private void setupView(View view) {
App app = getApp();
App app = appDetails.getApp();
// Set the icon...
ImageView iv = (ImageView) view.findViewById(R.id.icon);
@ -1506,13 +1466,13 @@ public class AppDetails extends AppCompatActivity implements AppDetailsData, App
*/
@Override
public void onClick(View view) {
AppDetails activity = (AppDetails) getActivity();
if (activity == null || activity.downloadHandler == null) {
AppDetails appDetails = (AppDetails) getActivity();
if (appDetails == null || appDetails.downloadHandler == null) {
return;
}
DownloaderService.cancel(getContext(), activity.downloadHandler.urlString);
activity.cleanUpFinishedDownload();
DownloaderService.cancel(getContext(), appDetails.downloadHandler.urlString);
appDetails.cleanUpFinishedDownload();
setProgressVisible(false);
updateViews();
}
@ -1522,21 +1482,20 @@ public class AppDetails extends AppCompatActivity implements AppDetailsData, App
}
public void updateViews(View view) {
App app = getApp();
App app = appDetails.getApp();
TextView statusView = (TextView) view.findViewById(R.id.status);
btMain.setVisibility(View.VISIBLE);
AppDetails activity = (AppDetails) getActivity();
if (activity.downloadHandler != null) {
if (appDetails.downloadHandler != null) {
btMain.setText(R.string.downloading);
btMain.setEnabled(false);
} else if (!app.isInstalled() && app.suggestedVercode > 0 &&
activity.adapter.getCount() > 0) {
appDetails.adapter.getCount() > 0) {
// Check count > 0 due to incompatible apps resulting in an empty list.
// If App isn't installed
installed = false;
statusView.setText(R.string.details_notinstalled);
NfcHelper.disableAndroidBeam(activity);
NfcHelper.disableAndroidBeam(appDetails);
// Set Install button and hide second button
btMain.setText(R.string.menu_install);
btMain.setOnClickListener(mOnClickListener);
@ -1545,13 +1504,13 @@ public class AppDetails extends AppCompatActivity implements AppDetailsData, App
// If App is installed
installed = true;
statusView.setText(getString(R.string.details_installed, app.installedVersionName));
NfcHelper.setAndroidBeam(activity, app.packageName);
NfcHelper.setAndroidBeam(appDetails, app.packageName);
if (app.canAndWantToUpdate()) {
updateWanted = true;
btMain.setText(R.string.menu_upgrade);
} else {
updateWanted = false;
if (activity.packageManager.getLaunchIntentForPackage(app.packageName) != null) {
if (appDetails.packageManager.getLaunchIntentForPackage(app.packageName) != null) {
btMain.setText(R.string.menu_launch);
} else {
btMain.setText(R.string.menu_uninstall);
@ -1569,8 +1528,8 @@ public class AppDetails extends AppCompatActivity implements AppDetailsData, App
author.setVisibility(View.VISIBLE);
}
TextView currentVersion = (TextView) view.findViewById(R.id.current_version);
if (!getApks().isEmpty()) {
currentVersion.setText(getApks().getItem(0).version + " (" + app.license + ")");
if (!appDetails.getApks().isEmpty()) {
currentVersion.setText(appDetails.getApks().getItem(0).version + " (" + app.license + ")");
} else {
currentVersion.setVisibility(View.GONE);
btMain.setVisibility(View.GONE);
@ -1580,7 +1539,7 @@ public class AppDetails extends AppCompatActivity implements AppDetailsData, App
private final View.OnClickListener mOnClickListener = new View.OnClickListener() {
public void onClick(View v) {
App app = getApp();
App app = appDetails.getApp();
AppDetails activity = (AppDetails) getActivity();
if (updateWanted && app.suggestedVercode > 0) {
Apk apkToInstall = ApkProvider.Helper.find(activity, app.packageName, app.suggestedVercode);
@ -1610,8 +1569,7 @@ public class AppDetails extends AppCompatActivity implements AppDetailsData, App
private static final String SUMMARY_TAG = "summary";
private AppDetailsData data;
private AppInstallListener installListener;
private AppDetails appDetails;
private AppDetailsSummaryFragment summaryFragment;
private FrameLayout headerView;
@ -1619,24 +1577,11 @@ public class AppDetails extends AppCompatActivity implements AppDetailsData, App
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
data = (AppDetailsData) activity;
installListener = (AppInstallListener) activity;
}
void install(final Apk apk) {
installListener.install(apk);
appDetails = (AppDetails) activity;
}
void remove() {
installListener.removeApk(getApp().packageName);
}
App getApp() {
return data.getApp();
}
ApkListAdapter getApks() {
return data.getApks();
appDetails.removeApk(appDetails.getApp().packageName);
}
@Override
@ -1658,13 +1603,13 @@ public class AppDetails extends AppCompatActivity implements AppDetailsData, App
setListAdapter(null);
getListView().addHeaderView(headerView);
setListAdapter(getApks());
setListAdapter(appDetails.getApks());
}
@Override
public void onListItemClick(ListView l, View v, int position, long id) {
App app = getApp();
final Apk apk = getApks().getItem(position - l.getHeaderViewsCount());
App app = appDetails.getApp();
final Apk apk = appDetails.getApks().getItem(position - l.getHeaderViewsCount());
if (app.installedVersionCode == apk.vercode) {
remove();
} else if (app.installedVersionCode > apk.vercode) {
@ -1675,7 +1620,7 @@ public class AppDetails extends AppCompatActivity implements AppDetailsData, App
@Override
public void onClick(DialogInterface dialog,
int whichButton) {
install(apk);
appDetails.install(apk);
}
});
builder.setNegativeButton(R.string.no,
@ -1688,7 +1633,7 @@ public class AppDetails extends AppCompatActivity implements AppDetailsData, App
AlertDialog alert = builder.create();
alert.show();
} else {
install(apk);
appDetails.install(apk);
}
}