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comment -*- mode: text; tab-width:2; indent-tabs-mode:nil -*-
Android support
* Tested environment
Android 4.0 (x86)
* Build
o Build with apache ant
$ cd mlterm-x.x.x/android
$ ./prepare-ant.sh /foo/bar
$ export ANDROID_HOME=...
$ export ANDROID_NDK_HOME=...
$ export JAVA_HOME=...
$ cd /foo/bar
(edit build-ant.sh)
(prepare some libraries in jni/ (see below))
$ ./build-ant.sh
=> Install bin/mlterm-release-unsigned.apk to Android.
o Build with gradle
$ cd mlterm-x.x.x/android
$ ./prepare-gradle.sh /foo/bar
$ export ANDROID_HOME=...
$ export ANDROID_NDK_HOME=...
$ export JAVA_HOME=...
$ cd /foo/bar
(edit build-gradle.sh)
(prepare some libraries in app/src/main/jni/ (see below))
$ ./build-gradle.sh
=> Install app/build/outputs/apk/release/app-release-unsigned.apk to Android.
(See .github/workflows/ci.yml)
o Prepare some libraries (Optional)
- fribidi
Copy following files of fribidi (0.19.6) to jni/fribidi/.
arabic-misc.tab.i fribidi-bidi-types.c fribidi-mem.c
arabic-shaping.tab.i fribidi-bidi-types.h fribidi-mirroring.c
bidi-type.tab.i fribidi-bidi-types-list.h fribidi-mirroring.h
bidi-types.h fribidi-common.h fribidi-run.c
common.h fribidi-config.h fribidi-shape.c
config.h fribidi-deprecated.c fribidi-shape.h
debug.h fribidi-deprecated.h fribidi-types.h
fribidi.c fribidi-enddecls.h fribidi-unicode.h
fribidi.h fribidi-flags.h fribidi-unicode-version.h
fribidi-arabic.c fribidi-joining.c joining-type.tab.i
fribidi-arabic.h fribidi-joining.h joining-types.h
fribidi-begindecls.h fribidi-joining-types.c mem.h
fribidi-bidi.c fribidi-joining-types.h mirroring.tab.i
fribidi-bidi.h fribidi-joining-types-list.h run.h
- libotf
Copy following files of libotf (0.9.13) to jni/libotf/.
config.h internal.h otf.h otfdrive.c otferror.c otfopen.c
- freetype2
Build static library (libfreetype.a) for Android (*), and place files as follows.
(*) Read "Autoconf" section in
https://developer.android.com/ndk/guides/other_build_systems
C Header files: jni/freetype/{armeabi,armeabi-v7,x86,mips}/include/
Static library: jni/freetype/{armeabi,armeabi-v7,x86,mips}/lib/
Specify following options to ./configure script in building freetype2.
--with-png=no --with-harfbuzz=no --with-bzip2=no --with-brotli=no
e.g.) freetype2
export ANDROID_HOME=/usr/lib/android-sdk
export ANDROID_NDK_HOME=/usr/lib/android-sdk/ndk/XX.X.XXXXXXX
export JAVA_HOME=/usr/lib/jvm/java-X.X.X-openjdk-amd64/
CC="$ANDROID_NDK_HOME/toolchains/llvm/prebuilt/linux-x86_64/bin/armv7a-linux-androideabiXX-clang -fPIC" ./configure --host=armv7a-linux-androideabi --prefix=/tmp --disable-shared --with-png=no --with-harfbuzz=no --with-bzip2=no --with-brotli=no
make
make install
- libssh2
Build static libraries (libssh2.a(libssh2), libcrypto.a(openssl or libressl))
for Android, and place files as follows.
C Header files: jni/libssh2/{armeabi,armeabi-v7,x86,mips}/include/
Static library: jni/libssh2/{armeabi,armeabi-v7,x86,mips}/lib/
e.g.) libssh2, libressl
export ANDROID_HOME=/usr/lib/android-sdk
export ANDROID_NDK_HOME=/usr/lib/android-sdk/ndk/XX.X.XXXXXXX
export JAVA_HOME=/usr/lib/jvm/java-X.X.X-openjdk-amd64/
CC="$ANDROID_NDK_HOME/toolchains/llvm/prebuilt/linux-x86_64/bin/armv7a-linux-androideabiXX-clang -fPIC" ./configure --host=armv7a-linux-androideabi --prefix=/tmp --disable-shared
make
make install
o If build-gradle.sh exits with a following error message,
add "distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip"
to /foo/bar/gradle/wrapper/gradle-wrapper.properties.
A problem occurred evaluating project ':app'.
> Failed to apply plugin [id 'com.android.application']
> Minimum supported Gradle version is 4.6. Current version is 3.2.1.
If using the gradle wrapper, try editing the distributionUrl in
/foo/bar/gradle/wrapper/gradle-wrapper.properties to gradle-4.6-all.zip
o Note that "LOCAL_ALLOW_UNDEFINED_SYMBOLS := true" is defined in Android.mk.
So mlterm can crash by UnsatisfiedLinkedError.
Check crash logs with logcat command.
o Following steps enable mosh.
- Build static library of protobuf for Android and place it as follows.
C Header files: jni/protobuf/{armeabi,armeabi-v7,x86,mips}/include/
Static library: jni/protobuf/{armeabi,armeabi-v7,x86,mips}/lib/
- Execute ./configure in mosh.
- Build and install mlterm. (See "Build with gradle")
Specify mosh and openssl (or libressl) src directories to 2nd and 3rd
arguments of ./prepare-gradle.sh.
- Specify "mosh://" before a mosh server address or name in the connect
dialog.
* Configuration
Place configuration files (see README.fb in detail) in /sdcard/.mlterm/.
* Note
o Available font formats are pcf and ttf.
o mlterm uses /system/fonts/DroidSansMono.ttf by default.
If you want to customize it, add "DEFAULT=/foo/bar/font.ttf" to
/sdcard/.mlterm/font-fb.
If you want to change the size of it, add "fontsize=<pixel size>" to
/sdcard/.mlterm/main or append ":<percent>" (":100" means the normal size) to
a font path in /sdcard/.mlterm/font-fb.
o If you want to show emoji, copy images/emoji/unicode/*.png in
https://github.com/github/gemoji/archive/master.zip to /sdcard/.mlterm/emoji/
in advance.
o mlterm-android-YYYYMMDD.apk contains the feature of rendering bidi and
hindi (ISCII).
Following steps are necessary to enable it.
- Install DVYG0ntt.ttf.
- Add "ISCII_HINDI=.../DVYG0ntt.ttf" to /sdcard/.mlterm/font-fb
If you want to show other scripts of ISCII, edit 'tables' in
vtemu/libctl/vt_iscii.c, install ISCII fonts and add it to
/sdcard/.mlterm/font-fb.
o You can show a software keyboard if you double-click the left mouse
button (Button1) at the lower right corner of the screen.
o Context menu (copy&paste and configuration) pops up by long click at the
lower right corner.
o You can rotate display by "rotate_display = right" or "rotate_display = left"
in /sdcard/.mlterm/main.
o The default values of following options are as below on Android.
"font_size_range" => 1-200
"only_use_unicode_font" => "true"
"box_drawing_font" => "unicode"
o "use_local_echo" option is unavailable.
o "start_with_local_pty" option disables ssh connection dialog on startup if
"default_server" option is not specified.
o Input method plugin is not supported.
o Scroll upward or downward by flick gesture. If you want to select characters
instead of scrolling, touch screen for more than 0.5 sec.
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