Java tutorial
/* * This is the source code of Telegram for Android v. 3.x.x. * It is licensed under GNU GPL v. 2 or later. * You should have received a copy of the license in this archive (see LICENSE). * * Copyright Nikolai Kudashov, 2013-2016. */ package org.telegram.ui.Cells; import android.content.Context; import android.graphics.Canvas; import android.graphics.Paint; import android.support.v4.content.ContextCompat; import android.text.TextUtils; import android.util.TypedValue; import android.view.Gravity; import android.widget.FrameLayout; import android.widget.ImageView; import android.widget.TextView; import org.telegram.messenger.AndroidUtilities; import org.telegram.messenger.LocaleController; import org.telegram.messenger.R; import org.telegram.ui.Components.ForegroundFrameLayout; import org.telegram.ui.Components.ForegroundTextView; import org.telegram.ui.Components.LayoutHelper; public class TextSettingsCell extends ForegroundFrameLayout { private TextView textView; private TextView valueTextView; private ImageView valueImageView; private static Paint paint; private boolean needDivider; public TextSettingsCell(Context context) { super(context); setElevation(AndroidUtilities.dp(2)); setBackgroundColor(ContextCompat.getColor(context, R.color.card_background)); if (paint == null) { paint = new Paint(); paint.setColor(ContextCompat.getColor(context, R.color.divider) /*0xffd9d9d9*/); paint.setStrokeWidth(1); } textView = new TextView(context); textView.setTextColor(ContextCompat.getColor(context, R.color.primary_text)/*0xff212121*/); textView.setTextSize(TypedValue.COMPLEX_UNIT_DIP, 16); textView.setLines(1); textView.setMaxLines(1); textView.setSingleLine(true); textView.setEllipsize(TextUtils.TruncateAt.END); textView.setGravity((LocaleController.isRTL ? Gravity.RIGHT : Gravity.LEFT) | Gravity.CENTER_VERTICAL); addView(textView, LayoutHelper.createFrame(LayoutHelper.MATCH_PARENT, LayoutHelper.MATCH_PARENT, (LocaleController.isRTL ? Gravity.RIGHT : Gravity.LEFT) | Gravity.TOP, 17, 0, 17, 0)); valueTextView = new TextView(context); valueTextView.setTextColor(ContextCompat.getColor(context, R.color.colorAccent)); valueTextView.setTextSize(TypedValue.COMPLEX_UNIT_DIP, 16); valueTextView.setLines(1); valueTextView.setMaxLines(1); valueTextView.setSingleLine(true); valueTextView.setEllipsize(TextUtils.TruncateAt.END); valueTextView.setGravity((LocaleController.isRTL ? Gravity.LEFT : Gravity.RIGHT) | Gravity.CENTER_VERTICAL); addView(valueTextView, LayoutHelper.createFrame(LayoutHelper.WRAP_CONTENT, LayoutHelper.MATCH_PARENT, (LocaleController.isRTL ? Gravity.LEFT : Gravity.RIGHT) | Gravity.TOP, 17, 0, 17, 0)); valueImageView = new ImageView(context); valueImageView.setScaleType(ImageView.ScaleType.CENTER); valueImageView.setVisibility(INVISIBLE); addView(valueImageView, LayoutHelper.createFrame(LayoutHelper.WRAP_CONTENT, LayoutHelper.WRAP_CONTENT, (LocaleController.isRTL ? Gravity.LEFT : Gravity.RIGHT) | Gravity.CENTER_VERTICAL, 17, 0, 17, 0)); } @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { setMeasuredDimension(MeasureSpec.getSize(widthMeasureSpec), AndroidUtilities.dp(48) + (needDivider ? 1 : 0)); int availableWidth = getMeasuredWidth() - getPaddingLeft() - getPaddingRight() - AndroidUtilities.dp(34); int width = availableWidth / 2; if (valueImageView.getVisibility() == VISIBLE) { valueImageView.measure(MeasureSpec.makeMeasureSpec(width, MeasureSpec.AT_MOST), MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.EXACTLY)); } if (valueTextView.getVisibility() == VISIBLE) { valueTextView.measure(MeasureSpec.makeMeasureSpec(width, MeasureSpec.AT_MOST), MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.EXACTLY)); width = availableWidth - valueTextView.getMeasuredWidth() - AndroidUtilities.dp(8); } else { width = availableWidth; } textView.measure(MeasureSpec.makeMeasureSpec(width, MeasureSpec.EXACTLY), MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.EXACTLY)); } public void setTextColor(int color) { textView.setTextColor(color); } public void setTextValueColor(int color) { valueTextView.setTextColor(color); } public void setText(String text, boolean divider) { textView.setText(text); valueTextView.setVisibility(INVISIBLE); valueImageView.setVisibility(INVISIBLE); needDivider = divider; setWillNotDraw(!divider); } public void setValue(String value) { valueImageView.setVisibility(INVISIBLE); if (value != null) { valueTextView.setText(value); valueTextView.setVisibility(VISIBLE); } else { valueTextView.setVisibility(INVISIBLE); } } public void setTextAndValue(String text, String value, boolean divider) { textView.setText(text); valueImageView.setVisibility(INVISIBLE); if (value != null) { valueTextView.setText(value); valueTextView.setVisibility(VISIBLE); } else { valueTextView.setVisibility(INVISIBLE); } needDivider = divider; setWillNotDraw(!divider); requestLayout(); } public void setTextAndIcon(String text, int resId, boolean divider) { textView.setText(text); valueTextView.setVisibility(INVISIBLE); if (resId != 0) { valueImageView.setVisibility(VISIBLE); valueImageView.setImageResource(resId); } else { valueImageView.setVisibility(INVISIBLE); } needDivider = divider; setWillNotDraw(!divider); } @Override protected void onDraw(Canvas canvas) { if (needDivider) { canvas.drawLine(getPaddingLeft(), getHeight() - 1, getWidth() - getPaddingRight(), getHeight() - 1, paint); } } public static void resetDivider() { paint = null; } }