1 files changed, 93 insertions, 0 deletions

diff --git a/library/src/main/kotlin/ca/allanwang/kau/utils/ContextUtils.kt b/library/src/main/kotlin/ca/allanwang/kau/utils/ContextUtils.kt
new file mode 100644
index 0000000..d27a609
--- /dev/null
+++ b/library/src/main/kotlin/ca/allanwang/kau/utils/ContextUtils.kt
@@ -0,0 +1,93 @@
+package ca.allanwang.kau.utils
+
+import android.app.Activity
+import android.content.Context
+import android.content.Intent
+import android.graphics.drawable.Drawable
+import android.net.ConnectivityManager
+import android.os.Handler
+import android.support.annotation.*
+import android.support.v4.content.ContextCompat
+import android.util.TypedValue
+import android.widget.Toast
+import ca.allanwang.kau.R
+import com.afollestad.materialdialogs.MaterialDialog
+import com.pitchedapps.frost.utils.ChangelogAdapter
+import com.pitchedapps.frost.utils.parse
+import java.util.*
+
+/**
+ * Created by Allan Wang on 2017-06-03.
+ */
+fun Activity.restart(extras: ((Intent) -> Unit)? = null) {
+    val i = Intent(this, this::class.java)
+    i.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION)
+    extras?.invoke(i)
+    startActivity(i)
+    overridePendingTransition(0, 0) //No transitions
+    finish()
+    overridePendingTransition(0, 0)
+}
+
+//Toast helpers
+fun Context.toast(@StringRes id: Int, duration: Int = Toast.LENGTH_LONG) = toast(this.string(id), duration)
+
+fun Context.toast(text: String, duration: Int = Toast.LENGTH_LONG) {
+    Toast.makeText(this, text, duration).show()
+}
+
+//Resource retrievers
+fun Context.string(@StringRes id: Int): String = getString(id)
+
+fun Context.string(@StringRes id: Int, fallback: String?): String? = if (id > 0) string(id) else fallback
+fun Context.string(holder: StringHolder?): String? = holder?.getString(this)
+fun Context.color(@ColorRes id: Int): Int = ContextCompat.getColor(this, id)
+fun Context.integer(@IntegerRes id: Int): Int = resources.getInteger(id)
+fun Context.dimen(@DimenRes id: Int): Float = resources.getDimension(id)
+fun Context.drawable(@DrawableRes id: Int): Drawable = ContextCompat.getDrawable(this, id)
+
+//Attr retrievers
+fun Context.resolveColor(@AttrRes attr: Int, fallback: Int = 0): Int {
+    val a = theme.obtainStyledAttributes(intArrayOf(attr))
+    try {
+        return a.getColor(0, fallback)
+    } finally {
+        a.recycle()
+    }
+}
+
+fun Context.resolveBoolean(@AttrRes attr: Int, fallback: Boolean = false): Boolean {
+    val a = theme.obtainStyledAttributes(intArrayOf(attr))
+    try {
+        return a.getBoolean(0, fallback)
+    } finally {
+        a.recycle()
+    }
+}
+
+fun Context.resolveString(@AttrRes attr: Int, fallback: String = ""): String {
+    val v = TypedValue()
+    return if (theme.resolveAttribute(attr, v, true)) v.string.toString() else fallback
+}
+
+fun Context.showChangelog(@XmlRes xmlRes: Int) {
+    val mHandler = Handler()
+    Thread(Runnable {
+        val items = parse(this, xmlRes)
+        mHandler.post(object : TimerTask() {
+            override fun run() {
+                MaterialDialog.Builder(this@showChangelog)
+                        .title(R.string.kau_changelog)
+                        .positiveText(R.string.kau_great)
+                        .adapter(ChangelogAdapter(items), null)
+                        .show()
+            }
+        })
+    }).start()
+}
+
+val isNetworkAvailable = fun Context.(): Boolean {
+    val connectivityManager = getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
+    val activeNetworkInfo = connectivityManager.activeNetworkInfo
+    return activeNetworkInfo != null && activeNetworkInfo.isConnectedOrConnecting
+}
\ No newline at end of file