NativeScript/utils/utils.android.ts at patch-1 · rclai/NativeScript · GitHub

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import common = require("./utils-common");

import trace = require("trace");

global.moduleMerge(common, exports);

export module layout {

var density = -1;

var metrics: android.util.DisplayMetrics;

// cache the MeasureSpec constants here, to prevent extensive marshaling calls to and from Java

// TODO: While this boosts the performance it is error-prone in case Google changes these constants

var MODE_SHIFT = 30;

var MODE_MASK = 0x3 << MODE_SHIFT;

var sdkVersion = -1;

var useOldMeasureSpec = false;

export function makeMeasureSpec(size: number, mode: number): number {

if (sdkVersion === -1) {

// check whether the old layout is needed

sdkVersion = ad.getApplicationContext().getApplicationInfo().targetSdkVersion;

useOldMeasureSpec = sdkVersion <= android.os.Build.VERSION_CODES.JELLY_BEAN_MR1;

}

if (useOldMeasureSpec) {

return size + mode;

}

return (size & ~MODE_MASK) | (mode & MODE_MASK);

}

export function getDisplayMetrics(): android.util.DisplayMetrics {

if (!metrics) {

metrics = ad.getApplicationContext().getResources().getDisplayMetrics();

}

return metrics;

}

export function getDisplayDensity(): number {

if (density === -1) {

density = getDisplayMetrics().density;

}

return density;

}

export function toDevicePixels(value: number): number {

return value * getDisplayDensity();

}

export function toDeviceIndependentPixels(value: number): number {

return value / getDisplayDensity();

}

// We are using "ad" here to avoid namespace collision with the global android object

export module ad {

export function getApplication() { return <android.app.Application>(<any>com.tns).NativeScriptApplication.getInstance(); }

export function getApplicationContext() { return <android.content.Context>getApplication().getApplicationContext(); }

var inputMethodManager: android.view.inputmethod.InputMethodManager;

export function getInputMethodManager() {

if (!inputMethodManager) {

inputMethodManager = <android.view.inputmethod.InputMethodManager>getApplicationContext().getSystemService(android.content.Context.INPUT_METHOD_SERVICE);

}

return inputMethodManager;

}

export function showSoftInput(nativeView: android.view.View) : void {

var imm = getInputMethodManager();

if (imm && nativeView instanceof android.view.View) {

imm.showSoftInput(nativeView, android.view.inputmethod.InputMethodManager.SHOW_IMPLICIT);

}

export function dismissSoftInput(nativeView: android.view.View): void {

var imm = getInputMethodManager();

if (imm && nativeView instanceof android.view.View) {

imm.hideSoftInputFromWindow(nativeView.getWindowToken(), 0);

}

export module collections {

export function stringArrayToStringSet(str: string[]): java.util.HashSet<string> {

var hashSet = new java.util.HashSet<string>();

if ("undefined" !== typeof str) {

for (var element in str) {

hashSet.add('' + str[element]);

}

return hashSet;

}

export function stringSetToStringArray(stringSet: any): string[] {

var arr = [];

if ("undefined" !== typeof stringSet) {

var it = stringSet.iterator();

while (it.hasNext()) {

var element = '' + it.next();

arr.push(element);

}

return arr;

}

export module resources {

var attr;

var attrCache = new Map<string, number>();

export function getDrawableId(name) {

return getId(":drawable/" + name);

}

export function getStringId(name) {

return getId(":string/" + name);

}

export function getId(name: string): number {

var resources = getApplicationContext().getResources();

var packageName = getApplicationContext().getPackageName();

var uri = packageName + name;

return resources.getIdentifier(uri, null, null);

}

export function getPalleteColor(name: string, context: android.content.Context): number {

if (attrCache.has(name)) {

return attrCache.get(name);

}

var result = 0;

try {

if (!attr) {

attr = java.lang.Class.forName("android.support.v7.appcompat.R$attr")

}

let colorID = 0;

let field = attr.getField(name);

if (field) {

colorID = field.getInt(null);

}

if (colorID) {

let typedValue = new android.util.TypedValue();

context.getTheme().resolveAttribute(colorID, typedValue, true);

result = typedValue.data;

}

catch (ex) {

trace.write("Cannot get pallete color: " + name, trace.categories.Error, trace.messageType.error);

}

attrCache.set(name, result);

return result;

}

export function GC() {

gc();

}

export function openUrl(location: string): boolean {

var context = ad.getApplicationContext();

try {

var intent = new android.content.Intent(android.content.Intent.ACTION_VIEW, android.net.Uri.parse(location.trim()));

intent.addFlags(android.content.Intent.FLAG_ACTIVITY_NEW_TASK);

context.startActivity(intent);

} catch (e) {

// We Don't do anything with an error. We just output it

console.error("Error in OpenURL", e);

return false;

}

return true;

}

NativeScript/utils/utils.android.ts at patch-1 · rclai/NativeScript · GitHub

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