Updated PIN strings.

app/src/main/java/org/thoughtcrime/securesms/util/views/LearnMoreTextView.java

@@ -0,0 +1,95 @@
+package org.thoughtcrime.securesms.util.views;
+
+import android.content.Context;
+import android.graphics.Color;
+import android.text.Spannable;
+import android.text.SpannableString;
+import android.text.SpannableStringBuilder;
+import android.text.Spanned;
+import android.text.TextPaint;
+import android.text.method.LinkMovementMethod;
+import android.text.style.ClickableSpan;
+import android.util.AttributeSet;
+import android.view.View;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.appcompat.widget.AppCompatTextView;
+
+import org.thoughtcrime.securesms.R;
+import org.thoughtcrime.securesms.util.ThemeUtil;
+
+public class LearnMoreTextView extends AppCompatTextView {
+
+  private OnClickListener linkListener;
+  private Spannable       link;
+  private boolean         visible;
+  private CharSequence    baseText;
+
+  public LearnMoreTextView(Context context) {
+    super(context);
+    init();
+  }
+
+  public LearnMoreTextView(Context context, AttributeSet attrs) {
+    super(context, attrs);
+    init();
+  }
+
+  private void init() {
+    setMovementMethod(LinkMovementMethod.getInstance());
+
+    ClickableSpan clickable = new ClickableSpan() {
+      @Override
+      public void updateDrawState(@NonNull TextPaint ds) {
+        super.updateDrawState(ds);
+        ds.setUnderlineText(false);
+        ds.setColor(ThemeUtil.getThemedColor(getContext(), R.attr.colorAccent));
+      }
+
+      @Override
+      public void onClick(@NonNull View widget) {
+        if (linkListener != null) {
+          linkListener.onClick(widget);
+        }
+      }
+    };
+
+    link = new SpannableString(getContext().getString(R.string.LearnMoreTextView_learn_more));
+    link.setSpan(clickable, 0, link.length(), Spanned.SPAN_INCLUSIVE_EXCLUSIVE);
+
+    visible = true;
+  }
+
+  @Override
+  public void setText(CharSequence text, BufferType type) {
+    baseText = text;
+    setTextInternal(baseText, type);
+  }
+
+  @Override
+  public void setTextColor(int color) {
+    super.setTextColor(color);
+  }
+
+  public void setOnLinkClickListener(@Nullable OnClickListener listener) {
+    this.linkListener = listener;
+  }
+
+  public void setLearnMoreVisible(boolean visible) {
+    this.visible = visible;
+    setTextInternal(baseText, visible ? BufferType.SPANNABLE : BufferType.NORMAL);
+  }
+
+  private void setTextInternal(CharSequence text, BufferType type) {
+    if (visible) {
+      SpannableStringBuilder builder = new SpannableStringBuilder();
+      builder.append(text).append(' ').append(link);
+
+      super.setText(builder, BufferType.SPANNABLE);
+    } else {
+      super.setText(text, type);
+    }
+  }
+}
+