android.widget.TextView#setCompoundDrawablesRelative ( )源码实例Demo

private void updateStatus(CharSequence text, @AttrRes int attr, Drawable icon) {
    if (mViewHolder != null) {
        CardView statusCard = (CardView) ((ViewGroup) mViewHolder.itemView).getChildAt(0);
        TextView status = statusCard.findViewById(android.R.id.text1);

        if (icon != null) {
            icon.setBounds(0, 0, icon.getIntrinsicWidth(), icon.getIntrinsicHeight());
            status.setCompoundDrawablesRelative(icon, null, null, null);
        } else {
            status.setCompoundDrawablesRelative(null, null, null, null);
        }
        status.setText(text);

        int[] attrs = {attr};
        TypedArray a = getContext().obtainStyledAttributes(attrs);
        int color = a.getColor(0, 0);
        a.recycle();

        statusCard.setCardBackgroundColor(color);
    }
}
 

@Override
public View getView(int position, View convertView, ViewGroup container) {
    if (convertView == null) {
        convertView = inflater.inflate(R.layout.list_item_intent_check, container, false);
    }

    ActivityInfo ai = mInfos.get(position);
    TextView title = (TextView) convertView;
    title.setText(ai.label);
    int iconSize = Resources.getSystem().getDimensionPixelSize(android.R.dimen.app_icon_size);
    ai.icon.setBounds(0, 0, iconSize, iconSize);
    title.setCompoundDrawablesRelative(ai.icon, null, null, null);

    if (title instanceof Checkable) {
        Checkable checker = (Checkable) title;
        checker.setChecked(appPackages.contains(ai.componentName.getPackageName()));
    }

    return convertView;
}
 

@Override
public View getView(int position, View convertView, ViewGroup container) {
    if (convertView == null) {
        convertView = inflater.inflate(R.layout.list_item_intent_check, container, false);
    }

    ActivityInfo ai = mInfos.get(position);
    TextView title = (TextView) convertView;
    title.setText(ai.label);
    int iconSize = Resources.getSystem().getDimensionPixelSize(android.R.dimen.app_icon_size);
    ai.icon.setBounds(0, 0, iconSize, iconSize);
    title.setCompoundDrawablesRelative(ai.icon, null, null, null);

    if (title instanceof Checkable) {
        Checkable checker = (Checkable) title;
        checker.setChecked(appPackages.contains(ai.componentName.getPackageName()));
    }

    return convertView;
}
 

/**
 * @see android.widget.TextView#setCompoundDrawablesRelative(Drawable, Drawable, Drawable,
 *      Drawable)
 */
public static void setCompoundDrawablesRelative(TextView textView, Drawable start, Drawable top,
        Drawable end, Drawable bottom) {
    if (Build.VERSION.SDK_INT == Build.VERSION_CODES.JELLY_BEAN_MR1) {
        // On JB MR1, due to a platform bug, setCompoundDrawablesRelative() is a no-op if the
        // view has ever been measured. As a workaround, use setCompoundDrawables() directly.
        // See: http://crbug.com/368196 and http://crbug.com/361709
        boolean isRtl = isLayoutRtl(textView);
        textView.setCompoundDrawables(isRtl ? end : start, top, isRtl ? start : end, bottom);
    } else if (Build.VERSION.SDK_INT > Build.VERSION_CODES.JELLY_BEAN_MR1) {
        textView.setCompoundDrawablesRelative(start, top, end, bottom);
    } else {
        textView.setCompoundDrawables(start, top, end, bottom);
    }
}
 

public static void loadSnapshotsIntoList(
    ViewGroup valuesList, Label label, AppAccount appAccount) {
  Context context = valuesList.getContext();
  SnapshotLabelValue snapshotLabelValue = label.getSnapshotLabelValue();

  valuesList.setVisibility(View.VISIBLE);
  // Make sure it has the correct number of views, re-using as many as possible.
  int childCount = valuesList.getChildCount();
  int snapshotsCount = snapshotLabelValue.getSnapshotsCount();
  if (childCount < snapshotsCount) {
    for (int i = 0; i < snapshotsCount - childCount; i++) {
      LayoutInflater.from(context).inflate(R.layout.snapshot_value_details, valuesList);
    }
  } else if (childCount > snapshotsCount) {
    valuesList.removeViews(0, childCount - snapshotsCount);
  }

  SensorAppearanceProvider sensorAppearanceProvider =
      AppSingleton.getInstance(context).getSensorAppearanceProvider(appAccount);

  String valueFormat = context.getResources().getString(R.string.data_with_units);
  for (int i = 0; i < snapshotsCount; i++) {
    GoosciSnapshotValue.SnapshotLabelValue.SensorSnapshot snapshot =
        snapshotLabelValue.getSnapshots(i);
    ViewGroup snapshotLayout = (ViewGroup) valuesList.getChildAt(i);

    GoosciSensorAppearance.BasicSensorAppearance appearance =
        snapshot.getSensor().getRememberedAppearance();
    TextView sensorName = (TextView) snapshotLayout.findViewById(R.id.sensor_name);
    sensorName.setCompoundDrawablesRelative(null, null, null, null);
    sensorName.setText(appearance.getName());
    String value =
        BuiltInSensorAppearance.formatValue(
            snapshot.getValue(), appearance.getPointsAfterDecimal());
    ((TextView) snapshotLayout.findViewById(R.id.sensor_value))
        .setText(String.format(valueFormat, value, appearance.getUnits()));

    loadLargeDrawable(appearance, sensorAppearanceProvider, snapshotLayout, snapshot.getValue());
  }
}
 

/**
 * @see android.widget.TextView#setCompoundDrawablesRelative(Drawable, Drawable, Drawable,
 *      Drawable)
 */
public static void setCompoundDrawablesRelative(TextView textView, Drawable start, Drawable top,
        Drawable end, Drawable bottom) {
    if (Build.VERSION.SDK_INT == Build.VERSION_CODES.JELLY_BEAN_MR1) {
        // On JB MR1, due to a platform bug, setCompoundDrawablesRelative() is a no-op if the
        // view has ever been measured. As a workaround, use setCompoundDrawables() directly.
        // See: http://crbug.com/368196 and http://crbug.com/361709
        boolean isRtl = isLayoutRtl(textView);
        textView.setCompoundDrawables(isRtl ? end : start, top, isRtl ? start : end, bottom);
    } else if (Build.VERSION.SDK_INT > Build.VERSION_CODES.JELLY_BEAN_MR1) {
        textView.setCompoundDrawablesRelative(start, top, end, bottom);
    } else {
        textView.setCompoundDrawables(start, top, end, bottom);
    }
}
 

public static void changeColorForDrawable(Context context, TextView textView, int color, PorterDuff.Mode mode) {
    if (textView == null) { return; }
    Drawable[] compoundDrawablesRelative = textView.getCompoundDrawablesRelative();
    Drawable[] newDrawablesRelative = changeColorForDrawable(context, color, mode, compoundDrawablesRelative);
    textView.setCompoundDrawablesRelative(newDrawablesRelative[0], newDrawablesRelative[1], newDrawablesRelative[2], newDrawablesRelative[3]);
}