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author | rohands <rohan0495@gmail.com> | 2015-09-20 18:57:18 +0530 |
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committer | rohands <rohan0495@gmail.com> | 2015-09-20 18:57:18 +0530 |
commit | 50f404ccddd30becf1d69129f493a2620110ed4d (patch) | |
tree | d1c71788dfeda49fe00518510863868ad4154d52 /OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/util | |
parent | 5330a91fef160b7d1bc4bae997997416ee01922c (diff) | |
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Diffstat (limited to 'OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/util')
-rw-r--r-- | OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/util/LongClick.java | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/util/LongClick.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/util/LongClick.java new file mode 100644 index 000000000..c41f77767 --- /dev/null +++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/util/LongClick.java @@ -0,0 +1,85 @@ +package org.sufficientlysecure.keychain.ui.util; + +/** + * Created by rohan on 20/9/15. + */ +import android.content.Context; +import android.graphics.Rect; +import android.text.TextUtils; +import android.view.Gravity; +import android.view.View; +import android.widget.Toast; +public class LongClick { + private static final int ESTIMATED_TOAST_HEIGHT_DIPS = 48; + public static void setup(View view) { + view.setOnLongClickListener(new View.OnLongClickListener() { + @Override + public boolean onLongClick(View view) { + return showLongClickText(view, view.getContentDescription()); + } + }); + } + + public static void setup(View view, final int textResId) { + view.setOnLongClickListener(new View.OnLongClickListener() { + @Override + public boolean onLongClick(View view) { + return showLongClickText(view, view.getContext().getString(textResId)); + } + }); + } + + public static void setup(View view, final CharSequence text) { + view.setOnLongClickListener(new View.OnLongClickListener() { + @Override + public boolean onLongClick(View view) { + return showLongClickText(view, text); + } + }); + } + + public static void remove(final View view) { + view.setOnLongClickListener(null); + } + + private static boolean showLongClickText(View view, CharSequence text) { + if (TextUtils.isEmpty(text)) { + return false; + } + + final int[] screenPos = new int[2]; // origin is device display + final Rect displayFrame = new Rect(); // includes decorations (e.g. status bar) + view.getLocationOnScreen(screenPos); + view.getWindowVisibleDisplayFrame(displayFrame); + + final Context context = view.getContext(); + final int viewWidth = view.getWidth(); + final int viewHeight = view.getHeight(); + final int viewCenterX = screenPos[0] + viewWidth / 2; + final int screenWidth = context.getResources().getDisplayMetrics().widthPixels; + final int estimatedToastHeight = (int) (ESTIMATED_TOAST_HEIGHT_DIPS + * context.getResources().getDisplayMetrics().density); + + Toast longClickText = Toast.makeText(context, text, Toast.LENGTH_SHORT); + boolean showBelow = screenPos[1] < estimatedToastHeight; + if (showBelow) { + // Show below + // Offsets are after decorations (e.g. status bar) are factored in + longClickText.setGravity(Gravity.TOP | Gravity.CENTER_HORIZONTAL, + viewCenterX - screenWidth / 2, + screenPos[1] - displayFrame.top + viewHeight); + } else { + // Show above + // Offsets are after decorations (e.g. status bar) are factored in + // NOTE: We can't use Gravity.BOTTOM because when the keyboard is up + // its height isn't factored in. + longClickText.setGravity(Gravity.TOP | Gravity.CENTER_HORIZONTAL, + viewCenterX - screenWidth / 2, + screenPos[1] - displayFrame.top - estimatedToastHeight); + } + + longClickText.show(); + return true; + } + +} |