Scala Build类代码示例

//设置package包名称以及导入依赖的类
package be.mygod.preference

import java.lang.reflect.Field
import java.util.List

import android.os.Build
import android.support.v4.content.ContextCompat
import android.support.v4.view.ViewCompat
import android.support.v7.preference.{PreferenceGroup, PreferenceViewHolder, PreferenceGroupAdapter => Old}
import android.view.{LayoutInflater, View, ViewGroup}
import com.github.shadowsocks.R


object PreferenceGroupAdapter {
  private var preferenceLayoutsField: Field = _
  private var fieldResId: Field = _
  private var fieldWidgetResId: Field = _
  private val preferenceViewHolderConstructor = classOf[PreferenceViewHolder].getDeclaredConstructor(classOf[View])

  {
    val oldClass = classOf[Old]
    preferenceLayoutsField = oldClass.getDeclaredField("mPreferenceLayouts")
    preferenceLayoutsField.setAccessible(true)
    val c = oldClass.getDeclaredClasses.filter(c => c.getSimpleName == "PreferenceLayout").head
    fieldResId = c.getDeclaredField("resId")
    fieldResId.setAccessible(true)
    fieldWidgetResId = c.getDeclaredField("widgetResId")
    fieldWidgetResId.setAccessible(true)
    preferenceViewHolderConstructor.setAccessible(true)
  }
}

class PreferenceGroupAdapter(group: PreferenceGroup) extends Old(group) {
  import PreferenceGroupAdapter._

  protected lazy val preferenceLayouts = preferenceLayoutsField.get(this).asInstanceOf[List[AnyRef]]

  override def onCreateViewHolder(parent: ViewGroup, viewType: Int) = if (Build.VERSION.SDK_INT < 21) {
    val context = parent.getContext
    val inflater = LayoutInflater.from(context)
    val pl = preferenceLayouts.get(viewType)
    val view = inflater.inflate(fieldResId.get(pl).asInstanceOf[Int], parent, false)
    if (view.getBackground == null) {
      val array = context.obtainStyledAttributes(null, R.styleable.BackgroundStyle)
      var background = array.getDrawable(R.styleable.BackgroundStyle_android_selectableItemBackground)
      if (background == null)
        background = ContextCompat.getDrawable(context, android.R.drawable.list_selector_background)
      array.recycle
      val (s, t, e, b) = (ViewCompat.getPaddingStart(view), view.getPaddingTop,
        ViewCompat.getPaddingEnd(view), view.getPaddingBottom)
      view.setBackground(background)
      ViewCompat.setPaddingRelative(view, s, t, e, b)
    }
    val widgetFrame = view.findViewById(android.R.id.widget_frame).asInstanceOf[ViewGroup]
    if (widgetFrame != null) {
      val widgetResId = fieldWidgetResId.get(pl).asInstanceOf[Int]
      if (widgetResId != 0) inflater.inflate(widgetResId, widgetFrame) else widgetFrame.setVisibility(View.GONE)
    }
    preferenceViewHolderConstructor.newInstance(view)
  } else super.onCreateViewHolder(parent, viewType)
} 

//设置package包名称以及导入依赖的类
package com.github.shadowsocks

import android.app.Activity
import android.content.Intent
import android.content.pm.ShortcutManager
import android.os.{Build, Bundle}
import com.github.shadowsocks.utils.{State, Utils}


class QuickToggleShortcut extends Activity with ServiceBoundContext {
  override def onCreate(savedInstanceState: Bundle) {
    super.onCreate(savedInstanceState)
    getIntent.getAction match {
      case Intent.ACTION_CREATE_SHORTCUT =>
        setResult(Activity.RESULT_OK, new Intent()
          .putExtra(Intent.EXTRA_SHORTCUT_INTENT, new Intent(this, classOf[QuickToggleShortcut]))
          .putExtra(Intent.EXTRA_SHORTCUT_NAME, getString(R.string.quick_toggle))
          .putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE,
            Intent.ShortcutIconResource.fromContext(this, R.mipmap.ic_launcher)))
        finish()
      case _ =>
        attachService()
        if (Build.VERSION.SDK_INT >= 25) getSystemService(classOf[ShortcutManager]).reportShortcutUsed("toggle")
    }
  }

  override def onDestroy() {
    detachService()
    super.onDestroy()
  }

  override def onServiceConnected() {
    bgService.getState match {
      case State.STOPPED => Utils.startSsService(this)
      case State.CONNECTED => Utils.stopSsService(this)
      case _ => // ignore
    }
    finish()
  }
} 

//设置package包名称以及导入依赖的类
package com.android.perrier1034.post_it_note.ui

import android.graphics.drawable.ColorDrawable
import android.os.{Build, Bundle}
import android.support.v7.app.AppCompatActivity
import android.support.v7.widget.Toolbar
import android.view.{View, ViewGroup, WindowManager}
import com.android.perrier1034.post_it_note.{Constants, R}

abstract class BaseActivity extends AppCompatActivity {

  lazy val mToolbar = findViewById(R.id.toolbar).asInstanceOf[Toolbar]
  lazy val mStatusBar = findViewById(R.id.status_bar)

  protected def contentsResId: Int
  protected def init()

  override final def onCreate(savedInstanceState: Bundle) {
    super.onCreate(savedInstanceState)
    setContentView(R.layout.activity_base)
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
      getWindow.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS)
      getWindow.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS)
    }
    val container = findViewById(R.id.container).asInstanceOf[ViewGroup]
    initToolbar(container)
    View.inflate(this, contentsResId, container)
    init()
    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP)
      getWindow.setBackgroundDrawable(new ColorDrawable(Constants.STATUS_BAR_COLOR_BASE))
  }

  def initToolbar(container: ViewGroup) = {
    setSupportActionBar(mToolbar)
    mToolbar.setBackgroundColor(Constants.TOOL_BAR_COLOR_BASE)
  }

  def getToolbar: Toolbar = mToolbar

  def setStatusBarColorByPosition(_pos: Int) {
    val pos: Int = if (_pos >= 0) _pos else 14
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
      getWindow.setStatusBarColor(Constants.PAGER_COLOR_MAPPING(pos)(3))
    }
    else if (Build.VERSION.SDK_INT == Build.VERSION_CODES.KITKAT) {
      mStatusBar.setBackgroundColor(Constants.PAGER_COLOR_MAPPING(pos)(0))
    }
  }

  
  def setActionModeStatusBarColorLOLLIPOP() {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP)
      getWindow.setStatusBarColor(Constants.STATUS_BAR_COLOR_ACTION_MODE)
  }

}