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Code Issues Projects Releases Wiki Activity

Improve appearance of the Android preferences screen

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* .gitignore: Add org/gnu/emacs/R.java.
* cross/Makefile.in (top_builddir): Include verbose.mk.  Rewrite
rules to print nice looking statements.
* doc/emacs/android.texi (Android, Android Startup)
(Android Environment, Android Windowing, Android Fonts):
* doc/emacs/emacs.texi (Top): Add an extra ``Android
Troubleshooting'' node and move troubleshooting details there.
* java/Makefile.in: Generate R.java; improve appearance by using
verbose.mk.

* java/org/gnu/emacs/EmacsPreferencesActivity.java: Reimplement
in terms of PreferencesActivity.
* java/org/gnu/emacs/EmacsView.java (handleDirtyBitmap): Avoid
flicker.
* java/res/xml/preferences.xml: New file.
* src/verbose.mk.in (AM_V_AAPT, AM_V_SILENT): New variables.
This commit is contained in:
Po Lu 2023-02-10 23:03:43 +08:00
parent 2489126e68
commit dc120c7ad6
9 changed files with 280 additions and 153 deletions
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123
java/org/gnu/emacs/EmacsPreferencesActivity.java
View file

@ -22,27 +22,28 @@ package org.gnu.emacs;
import java.io.File;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Build;
import android.view.View;
import android.view.ViewGroup.LayoutParams;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.R;
import android.widget.Toast;
import android.preference.*;
/* This module provides a ``preferences'' display for Emacs. It is
supposed to be launched from inside the Settings application to
perform various actions, such as starting Emacs with the ``-Q''
option, which would not be possible otherwise, as there is no
command line on Android. */
command line on Android.
public class EmacsPreferencesActivity extends Activity
Android provides a preferences activity, but it is deprecated.
Unfortunately, there is no alternative that looks the same way. */
@SuppressWarnings ("deprecation")
public class EmacsPreferencesActivity extends PreferenceActivity
{
/* The linear layout associated with the activity. */
private LinearLayout layout;
/* Restart Emacs with -Q. Call EmacsThread.exit to kill Emacs now, and
tell the system to EmacsActivity with some parameters later. */
@ -59,72 +60,82 @@ public class EmacsPreferencesActivity extends Activity
System.exit (0);
}
/* Erase Emacs's dump file. */
private void
eraseDumpFile ()
{
String wantedDumpFile;
File file;
Toast toast;
wantedDumpFile = ("emacs-" + EmacsNative.getFingerprint ()
+ ".pdmp");
file = new File (getFilesDir (), wantedDumpFile);
if (file.exists ())
file.delete ();
/* Make sure to clear EmacsApplication.dumpFileName, or
starting Emacs without restarting this program will
make Emacs try to load a nonexistent dump file. */
EmacsApplication.dumpFileName = null;
/* Display a message stating that the dump file has been
erased. */
toast = Toast.makeText (this, "Dump file removed",
Toast.LENGTH_SHORT);
toast.show ();
}
@Override
public void
onCreate (Bundle savedInstanceState)
{
LinearLayout layout;
TextView textView;
LinearLayout.LayoutParams params;
int resid;
Preference tem;
Preference.OnPreferenceClickListener listener;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP)
setTheme (R.style.Theme_DeviceDefault_Settings);
setTheme (android.R.style.Theme_DeviceDefault_Settings);
else if (Build.VERSION.SDK_INT
>= Build.VERSION_CODES.ICE_CREAM_SANDWICH)
setTheme (R.style.Theme_DeviceDefault);
setTheme (android.R.style.Theme_DeviceDefault);
layout = new LinearLayout (this);
layout.setOrientation (LinearLayout.VERTICAL);
setContentView (layout);
/* This must come before using any preference APIs. */
super.onCreate (savedInstanceState);
textView = new TextView (this);
textView.setPadding (8, 20, 20, 8);
/* Add preferences from the XML file where they are defined. */
addPreferencesFromResource (R.xml.preferences);
params = new LinearLayout.LayoutParams (LayoutParams.MATCH_PARENT,
LayoutParams.WRAP_CONTENT);
textView.setLayoutParams (params);
textView.setText ("(Re)start Emacs with -Q");
textView.setOnClickListener (new View.OnClickListener () {
/* Now, set up on click handlers for each of the preferences
items. */
tem = findPreference ("start_quick");
listener = new Preference.OnPreferenceClickListener () {
@Override
public void
onClick (View view)
public boolean
onPreferenceClick (Preference preference)
{
startEmacsQ ();
return true;
}
});
layout.addView (textView);
};
textView = new TextView (this);
textView.setPadding (8, 20, 20, 8);
tem.setOnPreferenceClickListener (listener);
params = new LinearLayout.LayoutParams (LayoutParams.MATCH_PARENT,
LayoutParams.WRAP_CONTENT);
textView.setLayoutParams (params);
textView.setText ("Erase dump file");
textView.setOnClickListener (new View.OnClickListener () {
tem = findPreference ("erase_dump");
listener = new Preference.OnPreferenceClickListener () {
@Override
public void
onClick (View view)
public boolean
onPreferenceClick (Preference preference)
{
String wantedDumpFile;
File file;
wantedDumpFile = ("emacs-" + EmacsNative.getFingerprint ()
+ ".pdmp");
file = new File (getFilesDir (), wantedDumpFile);
if (file.exists ())
file.delete ();
/* Make sure to clear EmacsApplication.dumpFileName, or
starting Emacs without restarting this program will
make Emacs try to load a nonexistent dump file. */
EmacsApplication.dumpFileName = null;
eraseDumpFile ();
return true;
}
});
layout.addView (textView);
};
super.onCreate (savedInstanceState);
tem.setOnPreferenceClickListener (listener);
}
};