96 lines
3.5 KiB
Kotlin
96 lines
3.5 KiB
Kotlin
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package su.timoxa0.linuxswitch
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import android.annotation.SuppressLint
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import android.content.Context
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import androidx.appcompat.app.AppCompatActivity
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import android.os.Bundle
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import android.util.Log
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import android.widget.Button
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import android.widget.TextView
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import android.widget.Toast
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import com.topjohnwu.superuser.Shell
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class MainActivity : AppCompatActivity() {
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companion object {
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fun showToast(text: String, applicationContext: Context) {
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Toast.makeText(applicationContext, text, Toast.LENGTH_SHORT).show()
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}
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fun switch(applicationContext: Context) {
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Log.i("SwitchToLinux", "switching to linux")
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val suffix: String = Shell.cmd("getprop ro.boot.slot_suffix").exec().out[0].toString()
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showToast("Switching!", applicationContext)
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Shell.cmd(
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"dd if=/sdcard/linux/linux.dtbo.img of=/dev/block/bootdevice/by-name/dtbo$suffix",
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"dd if=/sdcard/linux/linux.boot.img of=/dev/block/bootdevice/by-name/boot$suffix",
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"dd if=/sdcard/linux/linux.vbmeta.img of=/dev/block/bootdevice/by-name/vbmeta$suffix",
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"sleep 1",
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"svc power reboot"
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).exec()
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}
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}
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private fun isFileExist(path: String): Boolean {
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return if (path.endsWith("/")) {
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Shell.cmd("test -d %s".format(path)).exec().isSuccess
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} else {
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Shell.cmd("test -f %s".format(path)).exec().isSuccess
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}
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}
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@SuppressLint("SdCardPath", "SetTextI18n")
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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setContentView(R.layout.activity_main)
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val buttonS2L = findViewById<Button>(R.id.button_switch)
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val buttonDump = findViewById<Button>(R.id.button_dump)
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val textSlot = findViewById<TextView>(R.id.text_slot)
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Shell.getShell()
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if (Shell.isAppGrantedRoot() == true) {
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val suffix: String = Shell.cmd("getprop ro.boot.slot_suffix").exec().out[0].toString()
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buttonS2L.isEnabled = true
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if (!isFileExist("/sdcard/linux/")) {
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Shell.cmd("mkdir /sdcard/linux/").exec()
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}
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if (!isFileExist("/sdcard/linux/linux.dtbo.img")) {
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showToast("linux.dtbo.img not found", applicationContext)
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finish()
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} else if (!isFileExist("/sdcard/linux/linux.vbmeta.img")) {
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showToast("linux.vbmeta.img bot found", applicationContext)
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finish()
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} else if (!isFileExist("/sdcard/linux/linux.boot.img")) {
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showToast("linux.boot.img not found", applicationContext)
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finish()
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}
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textSlot.text = this.resources.getString(R.string.slot_text).format(suffix[1])
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} else {
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finish()
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}
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buttonS2L.setOnClickListener {
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switch(applicationContext)
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finish()
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}
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buttonDump.setOnClickListener {
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Log.i("SwitchToLinux","dumping images")
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val suffix: String = Shell.cmd("getprop ro.boot.slot_suffix").exec().out[0].toString()
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Shell.cmd(
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"dd if=/dev/block/bootdevice/by-name/dtbo$suffix of=/sdcard/linux/android.dtbo.img ",
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"dd if=/dev/block/bootdevice/by-name/boot$suffix of=/sdcard/linux/android.boot.img",
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).exec()
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showToast("Android images dumped to /sdcard/linux/", applicationContext)
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}
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}
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}
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