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Merge pull request #142 from TouchInstinct/extensions 

Metric extensions
This commit is contained in:
Aksenov Vladimir 2020-07-09 16:25:48 +05:00 committed by GitHub
parent 7e99274780 4b6fc34979
commit dd3f76ab4d
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 71 additions and 20 deletions
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56
utils/src/main/java/ru/touchin/roboswag/components/utils/MetricExtensions.kt Normal file
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@ -0,0 +1,56 @@
package ru.touchin.roboswag.components.utils
import android.app.Application
import android.content.Context
import android.content.res.Resources
import android.util.DisplayMetrics
private const val MAX_METRICS_TRIES_COUNT = 5
/**
* Returns right metrics with non-zero height/width.
* It is common bug when metrics are calling at [Application.onCreate] method and it returns metrics with zero height/width.
*
* @param context [Context] of metrics;
* @return [DisplayMetrics].
*/
fun Context.getDisplayMetrics(): DisplayMetrics {
var result = resources.displayMetrics
// it is needed to avoid bug with invalid metrics when user restore application from other application
var metricsTryNumber = 0
while (metricsTryNumber < MAX_METRICS_TRIES_COUNT && (result.heightPixels <= 0 || result.widthPixels <= 0)) {
try {
Thread.sleep(500)
} catch (ignored: InterruptedException) {
return result
}
result = resources.displayMetrics
metricsTryNumber++
}
return result
}
/**
* Simply converts Dp to pixels.
*
* @return Size in pixels.
*/
val Int.px: Int
get() = (this * Resources.getSystem().displayMetrics.density).toInt()
/**
* Simply converts Dp to pixels.
*
* @return Size in pixels.
*/
val Float.px: Float
get() = this * Resources.getSystem().displayMetrics.density
/**
* Simply converts pixels to Dp.
*
* @return Size in dp.
*/
val Int.dp: Int
get() = (this / Resources.getSystem().displayMetrics.density).toInt()

35
utils/src/main/java/ru/touchin/roboswag/components/utils/UiUtils.kt
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@ -25,7 +25,6 @@ import android.content.Context
import android.content.Intent
import android.os.Build
import android.util.DisplayMetrics
import android.util.TypedValue
import android.view.KeyCharacterMap
import android.view.KeyEvent
import android.view.LayoutInflater
@ -85,22 +84,11 @@ object UiUtils {
* @param context [Context] of metrics;
* @return [DisplayMetrics].
*/
fun getDisplayMetrics(context: Context): DisplayMetrics {
var result = context.resources.displayMetrics
// it is needed to avoid bug with invalid metrics when user restore application from other application
var metricsTryNumber = 0
while (metricsTryNumber < MAX_METRICS_TRIES_COUNT && (result.heightPixels <= 0 || result.widthPixels <= 0)) {
try {
Thread.sleep(500)
} catch (ignored: InterruptedException) {
return result
}
result = context.resources.displayMetrics
metricsTryNumber++
}
return result
}
@Deprecated(
message = "Use extension instead",
replaceWith = ReplaceWith("context.getDisplayMetrics()")
)
fun getDisplayMetrics(context: Context): DisplayMetrics = context.getDisplayMetrics()
/**
* Simply converts DP to pixels.
@ -109,10 +97,17 @@ object UiUtils {
* @param sizeInDp Size in DP;
* @return Size in pixels.
*/
fun dpToPixels(context: Context, sizeInDp: Float): Float =
TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, sizeInDp, getDisplayMetrics(context))
@Deprecated(
message = "Use extension instead",
replaceWith = ReplaceWith("sizeInDp.toPixels()")
)
fun dpToPixels(context: Context, sizeInDp: Float): Float = sizeInDp.px
fun pixelsToDp(context: Context, pixels: Int): Int = (pixels * getDisplayMetrics(context).density + 0.5f).toInt()
@Deprecated(
message = "Use extension instead",
replaceWith = ReplaceWith("pixels.toDp()")
)
fun pixelsToDp(context: Context, pixels: Int): Int = pixels.dp
}