Santosh Dhakal laaptu
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| public static boolean isConnectedToInternet(Context context) { | |
| if (isConnectingToInternet(context)) { | |
| return isNetworkAvailable(); | |
| } | |
| return false; | |
| } | |
| public static boolean isConnectingToInternet(Context context) { |
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| public void collapse(final View v) { | |
| final int initialHeight = v.getMeasuredHeight(); | |
| Animation a = new Animation() { | |
| @Override | |
| protected void applyTransformation(float interpolatedTime, | |
| Transformation t) { | |
| if (interpolatedTime == 1) { | |
| v.setVisibility(View.GONE); | |
| } else { |
laaptu
/ Activity.java
Created
January 7, 2014 08:42
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| @Override | |
| public boolean onPrepareOptionsMenu(Menu menu) { | |
| // getMenuInflater().inflate(R.menu.text_menu, menu); | |
| getMenuInflater().inflate(R.menu.actionview_menu, menu); | |
| // menu.getItem(0).setVisible(false); | |
| this.menu = menu; | |
| MenuItem shareItem = menu.findItem(R.id.action_share); | |
| ShareActionProvider actionProvider = (ShareActionProvider) MenuItemCompat |
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| public int getActionBarHeight() { | |
| int actionBarHeight = 0; | |
| TypedValue tv = new TypedValue(); | |
| if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) { | |
| if (getTheme().resolveAttribute(android.R.attr.actionBarSize, tv, | |
| true)) | |
| actionBarHeight = TypedValue.complexToDimensionPixelSize( | |
| tv.data, getResources().getDisplayMetrics()); | |
| } else { | |
| actionBarHeight = TypedValue.complexToDimensionPixelSize(tv.data, |
laaptu
/ DpToPxAndPxToDp
Last active
February 14, 2022 21:06
Android convert dp to px and vice versa
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| public static float convertPixelsToDp(float px){ | |
| DisplayMetrics metrics = Resources.getSystem().getDisplayMetrics(); | |
| float dp = px / (metrics.densityDpi / 160f); | |
| return Math.round(dp); | |
| } | |
| public static float convertDpToPixel(float dp){ | |
| DisplayMetrics metrics = Resources.getSystem().getDisplayMetrics(); | |
| float px = dp * (metrics.densityDpi / 160f); | |
| return Math.round(px); |
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| public int getStatusBarHeight(){ | |
| int result=0;\ | |
| int resourceId= getResources().getIdentifier("status_bar_height","dimen","android"); | |
| if(resourceId >0) | |
| result = getResources().getDimensionPixelSize(resourceId); | |
| return result; | |
| } |
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| WindowManager windowManager =(WindowManager)getSystemService(Context.WindowService); | |
| DisplayMetrics displayMetrics = new DisplayMetrics(); | |
| windowManager.getDefaultDisplay().getMetrics(displayMetrics); | |
| int screenWidth = displayMetrics.widthPixels; | |
| int screenHeight = displayMetrics.heightPixels; |
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| Intent intent = new Intent(Intent.ACTION_SEND); | |
| intent.setData(Uri.parse("mailto:")); | |
| intent.setType("message/rfc822"); | |
| intent.putExtra(Intent.EXTRA_EMAIL, new String[] { email }); | |
| intent.putExtra(Intent.EXTRA_SUBJECT, Constants.SHARE_MSG); | |
| intent.putExtra(Intent.EXTRA_TEXT, Constants.INVITE_MSG); | |
| intent.putExtra(Constants.EXIT_ON_SENT, true); | |
| startActivity(Intent.createChooser(intent, | |
| getString(R.string.invite_via))); |
laaptu
/ sumpercentage
Created
October 22, 2013 05:19
Properly calculating sum to percentage with rounding error to +-1%
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| float a = 221, b = 77, c = 17, d = 88, e = 22, f = 44; | |
| float total = a + b + c + d + e + f; | |
| int sum = (int) Math.round(100.0 / total * a) | |
| + (int) Math.round(100.0 / total * b) | |
| + (int) Math.round(100.0 / total * c) | |
| + (int) Math.round(100.0 / total * d) | |
| + (int) Math.round(100.0 / total * e) | |
| + (int) Math.round(100.0 / total * f); | |
| System.out.println(Math.round(100.0 / total * a)); | |
| System.out.println(Math.round(100.0 / total * b)); |
laaptu
/ WebViewNonLeakMemory
Created
October 16, 2013 14:58
Avoid memory leak of webview
http://stackoverflow.com/questions/3130654/memory-leak-in-webview
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| import java.lang.ref.WeakReference; | |
| import java.lang.reflect.Field; | |
| import android.app.Activity; | |
| import android.content.Context; | |
| import android.content.Intent; | |
| import android.net.Uri; | |
| import android.util.AttributeSet; | |
| import android.webkit.WebView; | |
| import android.webkit.WebViewClient; |