diff options
Diffstat (limited to 'platform/android/src/com/artifex/mupdfdemo/ChoosePDFActivity.java')
| -rw-r--r-- | platform/android/src/com/artifex/mupdfdemo/ChoosePDFActivity.java | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/platform/android/src/com/artifex/mupdfdemo/ChoosePDFActivity.java b/platform/android/src/com/artifex/mupdfdemo/ChoosePDFActivity.java new file mode 100644 index 00000000..c1c9142c --- /dev/null +++ b/platform/android/src/com/artifex/mupdfdemo/ChoosePDFActivity.java @@ -0,0 +1,195 @@ +package com.artifex.mupdfdemo; + +import java.io.File; +import java.io.FileFilter; +import java.util.Arrays; +import java.util.Comparator; +import java.util.HashMap; +import java.util.Map; + +import android.app.AlertDialog; +import android.app.ListActivity; +import android.content.DialogInterface; +import android.content.DialogInterface.OnClickListener; +import android.content.Intent; +import android.content.res.Resources; +import android.net.Uri; +import android.os.Bundle; +import android.os.Environment; +import android.os.FileObserver; +import android.os.Handler; +import android.view.View; +import android.widget.ListView; + +public class ChoosePDFActivity extends ListActivity { + static private File mDirectory; + static private Map<String, Integer> mPositions = new HashMap<String, Integer>(); + private File mParent; + private File [] mDirs; + private File [] mFiles; + private Handler mHandler; + private Runnable mUpdateFiles; + private ChoosePDFAdapter adapter; + + @Override + protected void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + + String storageState = Environment.getExternalStorageState(); + + if (!Environment.MEDIA_MOUNTED.equals(storageState) + && !Environment.MEDIA_MOUNTED_READ_ONLY.equals(storageState)) + { + AlertDialog.Builder builder = new AlertDialog.Builder(this); + builder.setTitle(R.string.no_media_warning); + builder.setMessage(R.string.no_media_hint); + AlertDialog alert = builder.create(); + alert.setButton(AlertDialog.BUTTON_POSITIVE,getString(R.string.dismiss), + new OnClickListener() { + public void onClick(DialogInterface dialog, int which) { + finish(); + } + }); + alert.show(); + return; + } + + if (mDirectory == null) + mDirectory = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS); + + // Create a list adapter... + adapter = new ChoosePDFAdapter(getLayoutInflater()); + setListAdapter(adapter); + + // ...that is updated dynamically when files are scanned + mHandler = new Handler(); + mUpdateFiles = new Runnable() { + public void run() { + Resources res = getResources(); + String appName = res.getString(R.string.app_name); + String version = res.getString(R.string.version); + String title = res.getString(R.string.picker_title_App_Ver_Dir); + setTitle(String.format(title, appName, version, mDirectory)); + + mParent = mDirectory.getParentFile(); + + mDirs = mDirectory.listFiles(new FileFilter() { + + public boolean accept(File file) { + return file.isDirectory(); + } + }); + if (mDirs == null) + mDirs = new File[0]; + + mFiles = mDirectory.listFiles(new FileFilter() { + + public boolean accept(File file) { + if (file.isDirectory()) + return false; + String fname = file.getName().toLowerCase(); + if (fname.endsWith(".pdf")) + return true; + if (fname.endsWith(".xps")) + return true; + if (fname.endsWith(".cbz")) + return true; + if (fname.endsWith(".png")) + return true; + if (fname.endsWith(".jpe")) + return true; + if (fname.endsWith(".jpeg")) + return true; + if (fname.endsWith(".jpg")) + return true; + if (fname.endsWith(".jfif")) + return true; + if (fname.endsWith(".jfif-tbnl")) + return true; + if (fname.endsWith(".tif")) + return true; + if (fname.endsWith(".tiff")) + return true; + return false; + } + }); + if (mFiles == null) + mFiles = new File[0]; + + Arrays.sort(mFiles, new Comparator<File>() { + public int compare(File arg0, File arg1) { + return arg0.getName().compareToIgnoreCase(arg1.getName()); + } + }); + + Arrays.sort(mDirs, new Comparator<File>() { + public int compare(File arg0, File arg1) { + return arg0.getName().compareToIgnoreCase(arg1.getName()); + } + }); + + adapter.clear(); + if (mParent != null) + adapter.add(new ChoosePDFItem(ChoosePDFItem.Type.PARENT, getString(R.string.parent_directory))); + for (File f : mDirs) + adapter.add(new ChoosePDFItem(ChoosePDFItem.Type.DIR, f.getName())); + for (File f : mFiles) + adapter.add(new ChoosePDFItem(ChoosePDFItem.Type.DOC, f.getName())); + + lastPosition(); + } + }; + + // Start initial file scan... + mHandler.post(mUpdateFiles); + + // ...and observe the directory and scan files upon changes. + FileObserver observer = new FileObserver(mDirectory.getPath(), FileObserver.CREATE | FileObserver.DELETE) { + public void onEvent(int event, String path) { + mHandler.post(mUpdateFiles); + } + }; + observer.startWatching(); + } + + private void lastPosition() { + String p = mDirectory.getAbsolutePath(); + if (mPositions.containsKey(p)) + getListView().setSelection(mPositions.get(p)); + } + + @Override + protected void onListItemClick(ListView l, View v, int position, long id) { + super.onListItemClick(l, v, position, id); + + mPositions.put(mDirectory.getAbsolutePath(), getListView().getFirstVisiblePosition()); + + if (position < (mParent == null ? 0 : 1)) { + mDirectory = mParent; + mHandler.post(mUpdateFiles); + return; + } + + position -= (mParent == null ? 0 : 1); + + if (position < mDirs.length) { + mDirectory = mDirs[position]; + mHandler.post(mUpdateFiles); + return; + } + + position -= mDirs.length; + + Uri uri = Uri.parse(mFiles[position].getAbsolutePath()); + Intent intent = new Intent(this,MuPDFActivity.class); + intent.setAction(Intent.ACTION_VIEW); + intent.setData(uri); + startActivity(intent); + } + + @Override + protected void onPause() { + super.onPause(); + mPositions.put(mDirectory.getAbsolutePath(), getListView().getFirstVisiblePosition()); + } +} |