Support for full backup/restore to sdcard

src/org/thoughtcrime/securesms/preferences/widgets/ProgressPreference.java

@@ -0,0 +1,61 @@
+package org.thoughtcrime.securesms.preferences.widgets;
+
+
+import android.content.Context;
+import android.support.v7.preference.Preference;
+import android.support.v7.preference.PreferenceViewHolder;
+import android.util.AttributeSet;
+import android.view.View;
+import android.widget.TextView;
+
+import org.thoughtcrime.securesms.R;
+
+public class ProgressPreference extends Preference {
+
+  private View        container;
+  private TextView    progressText;
+
+  public ProgressPreference(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
+    super(context, attrs, defStyleAttr, defStyleRes);
+    initialize();
+  }
+
+  public ProgressPreference(Context context, AttributeSet attrs, int defStyleAttr) {
+    super(context, attrs, defStyleAttr);
+    initialize();
+  }
+
+  public ProgressPreference(Context context, AttributeSet attrs) {
+    super(context, attrs);
+    initialize();
+  }
+
+  public ProgressPreference(Context context) {
+    super(context);
+    initialize();
+  }
+
+  private void initialize() {
+    setWidgetLayoutResource(R.layout.preference_widget_progress);
+  }
+
+  @Override
+  public void onBindViewHolder(PreferenceViewHolder view) {
+    super.onBindViewHolder(view);
+
+    this.container    = view.findViewById(R.id.container);
+    this.progressText = (TextView) view.findViewById(R.id.progress_text);
+
+    this.container.setVisibility(View.GONE);
+  }
+
+  public void setProgress(int count) {
+    container.setVisibility(View.VISIBLE);
+    progressText.setText(getContext().getString(R.string.ProgressPreference_d_messages_so_far, count));
+  }
+
+  public void setProgressVisible(boolean visible) {
+    container.setVisibility(visible ? View.VISIBLE : View.GONE);
+  }
+
+}