android.support.constraint.ConstraintLayout Java Examples

/**
 * 将View的top margin 向下偏移一个状态栏的高度
 */
public static void initMarginTopDiffBar(View view) {
    ViewGroup.LayoutParams params = view.getLayoutParams();
    if (params instanceof LinearLayout.LayoutParams) {
        LinearLayout.LayoutParams linearParams = (LinearLayout.LayoutParams) params;
        linearParams.topMargin += ScreenUtils.getStatusHeight(view.getContext());
    } else if (params instanceof FrameLayout.LayoutParams) {
        FrameLayout.LayoutParams frameParams = (FrameLayout.LayoutParams) params;
        frameParams.topMargin += ScreenUtils.getStatusHeight(view.getContext());
    } else if (params instanceof RelativeLayout.LayoutParams) {
        RelativeLayout.LayoutParams relativeParams = (RelativeLayout.LayoutParams) params;
        relativeParams.topMargin += ScreenUtils.getStatusHeight(view.getContext());
    } else if (params instanceof ConstraintLayout.LayoutParams) {
        ConstraintLayout.LayoutParams constraintParams = (ConstraintLayout.LayoutParams) params;
        constraintParams.topMargin += ScreenUtils.getStatusHeight(view.getContext());
    }
    view.setLayoutParams(params);
}
 

private ValueAnimator animatePointer(long orbitDuration) {
    ValueAnimator anim = ValueAnimator.ofInt(0, 359);

    anim.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
        @Override
        public void onAnimationUpdate(ValueAnimator valueAnimator) {
            int val = (Integer) valueAnimator.getAnimatedValue();
            ConstraintLayout.LayoutParams layoutParams = (ConstraintLayout.LayoutParams) imgPointer.getLayoutParams();
            layoutParams.circleAngle = val;
            imgPointer.setLayoutParams(layoutParams);
        }
    });
    anim.setDuration(orbitDuration);
    anim.setInterpolator(new LinearInterpolator());
    anim.setRepeatMode(ValueAnimator.RESTART);
    anim.setRepeatCount(ValueAnimator.INFINITE);

    return anim;
}
 

protected void inflateComponents(){
    inflate(getContext(), R.layout.row_news_item, this);
    articleTitleTextView = findViewById(R.id.articleTitle);
    ageTextView = findViewById(R.id.age);
    articleImageView = findViewById(R.id.articleImage);
    sourceNameTextView = findViewById(R.id.sourceName);
    setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent browserIntent = new Intent(getContext(), WebViewActivity.class);
            browserIntent.putExtra("url", newsItem.articleURL);
            browserIntent.putExtra("title", "News");
            getContext().startActivity(browserIntent);
        }
    });
    ConstraintLayout.LayoutParams params = new ConstraintLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
    params.orientation = LayoutParams.VERTICAL;
    setLayoutParams(params);
    TypedValue outValue = new TypedValue();
    getContext().getTheme().resolveAttribute(android.R.attr.selectableItemBackground, outValue, true);
    setBackgroundResource(outValue.resourceId);
    setFocusable(true);
    setClickable(true);
}
 

public final void show(boolean inReversedOrder) {
    ConstraintLayout parent = getConstraintLayoutParent(this);
    if (notNull(parent)) {
        Transition transition = prepareStaggeredTransition(true, inReversedOrder);
        TransitionManager.beginDelayedTransition(parent, transition);
        setVisibility(View.VISIBLE);
    }
}
 

@Override
public void onMapReady(@NonNull NaverMap naverMap) {
    this.<CompassView>findViewById(R.id.compass).setMap(naverMap);
    this.<ZoomControlView>findViewById(R.id.zoom).setMap(naverMap);
    this.<IndoorLevelPickerView>findViewById(R.id.indoor_level_picker).setMap(naverMap);

    ScaleBarView scaleBar = findViewById(R.id.scale_bar);
    scaleBar.setMap(naverMap);

    ConstraintLayout container = findViewById(R.id.container);
    int scaleBarMargin = getResources().getDimensionPixelSize(R.dimen.fab_margin);

    findViewById(R.id.fab).setOnClickListener(v -> {
        boolean right = !scaleBar.isRightToLeftEnabled();

        UiSettings uiSettings = naverMap.getUiSettings();

        ConstraintSet constraintSet = new ConstraintSet();
        constraintSet.clone(container);

        if (right) {
            uiSettings.setLogoGravity(Gravity.START | Gravity.BOTTOM);
            constraintSet.connect(R.id.scale_bar, ConstraintSet.END, R.id.fab, ConstraintSet.START);
            constraintSet.setMargin(R.id.scale_bar, ConstraintSet.END, scaleBarMargin);
            constraintSet.clear(R.id.scale_bar, ConstraintSet.START);
        } else {
            uiSettings.setLogoGravity(Gravity.START | Gravity.TOP);
            constraintSet.connect(R.id.scale_bar, ConstraintSet.START, ConstraintSet.PARENT_ID,
                ConstraintSet.START);
            constraintSet.setMargin(R.id.scale_bar, ConstraintSet.START, scaleBarMargin);
            constraintSet.clear(R.id.scale_bar, ConstraintSet.END);
        }

        constraintSet.applyTo(container);

        scaleBar.setRightToLeftEnabled(right);
    });
}
 

private static ConstraintLayout.LayoutParams startColorParams(View selectedView) {
    final int colorSize = selectedView.getContext().getResources()
        .getDimensionPixelOffset(R.dimen.product_color_size);

    final ConstraintLayout.LayoutParams layoutParams =
        new ConstraintLayout.LayoutParams(colorSize, colorSize);

    setStartState(selectedView, layoutParams);
    return layoutParams;
}
 

private static ConstraintLayout.LayoutParams endParams(View v, View targetView) {
    final ConstraintLayout.LayoutParams layoutParams =
        (ConstraintLayout.LayoutParams) v.getLayoutParams();

    final int marginLeft = v.getContext().getResources()
        .getDimensionPixelOffset(R.dimen.spacing_medium);

    layoutParams.setMargins(marginLeft, 0, 0, 0);
    layoutParams.topToTop = targetView.getId();
    layoutParams.startToEnd = targetView.getId();
    layoutParams.bottomToBottom = targetView.getId();

    return layoutParams;
}
 

@OnClick(R.id.second)
public void revealSecond(FloatingActionButton dot) {
  if (finished) {
    finished = false;
    lastDot = dot;
    ViewGroup.LayoutParams params = top.getLayoutParams();
    int height = params.height;
    params.height = ConstraintLayout.LayoutParams.MATCH_PARENT;
    top.setLayoutParams(params);
    topPanel.setBackgroundColor(dot.getBackgroundTintList().getDefaultColor());
    top.post(() -> {
      Animator animator = createRevealAnimator(lastDot, 0);
      int dotColor = dot.getBackgroundTintList().getDefaultColor();
      if (dotColor == color) {
        backgroundReveal().start();
      }
      AnimatorSet animatorSet = morphParent(duration(R.integer.reveal_duration));
      animatorSet.play(animator);
      addScaleAnimation(0, duration(R.integer.short_delay), animatorSet);
      animatorSet.addListener(new AnimatorListenerAdapter() {
        @Override
        public void onAnimationEnd(Animator animation) {
          super.onAnimationEnd(animation);
          ValueAnimator heightAnimation = ValueAnimator.ofInt(top.getHeight(), height);
          heightAnimation.addUpdateListener(valueAnimator -> {
            int val = (Integer) valueAnimator.getAnimatedValue();
            ViewGroup.LayoutParams layoutParams = top.getLayoutParams();
            layoutParams.height = val;
            top.setLayoutParams(layoutParams);
          });
          heightAnimation.setDuration(duration(R.integer.reveal_duration) / 2);
          finish(heightAnimation);
          heightAnimation.start();
          runCloseAnimation();
        }
      });
      animatorSet.start();
    });
  }
}
 

@OnClick(R.id.root)
public void unfold() {
  if (!lock) {
    caption.setVerticalText(false);
    caption.requestLayout();
    Rotate transition = new Rotate();
    transition.setStartAngle(-90f);
    transition.setEndAngle(0f);
    transition.addTarget(caption);
    TransitionSet set = new TransitionSet();
    set.setDuration(getResources().getInteger(R.integer.duration));
    ChangeBounds changeBounds = new ChangeBounds();
    set.addTransition(changeBounds);
    set.addTransition(transition);
    TextSizeTransition sizeTransition = new TextSizeTransition();
    sizeTransition.addTarget(caption);
    set.addTransition(sizeTransition);
    set.setOrdering(TransitionSet.ORDERING_TOGETHER);
    caption.post(() -> {
      TransitionManager.beginDelayedTransition(parent, set);
      caption.setTextSize(TypedValue.COMPLEX_UNIT_PX, getResources().getDimension(R.dimen.unfolded_size));
      caption.setTextColor(ContextCompat.getColor(getContext(), R.color.color_label));
      caption.setTranslationX(0);
      ConstraintLayout.LayoutParams params = getParams();
      params.rightToRight = ConstraintLayout.LayoutParams.PARENT_ID;
      params.leftToLeft = ConstraintLayout.LayoutParams.PARENT_ID;
      params.verticalBias = 0.78f;
      caption.setLayoutParams(params);
    });
    callback.show(this);
    lock = true;
  }
}
 

private void foldStuff() {
  caption.setTextSize(TypedValue.COMPLEX_UNIT_PX, caption.getTextSize() / 2f);
  caption.setTextColor(Color.WHITE);
  ConstraintLayout.LayoutParams params = getParams();
  params.rightToRight = ConstraintLayout.LayoutParams.UNSET;
  params.verticalBias = 0.5f;
  caption.setLayoutParams(params);
}
 

private static ConstraintLayout.LayoutParams startTextParams(View selectedView) {
    final ConstraintLayout.LayoutParams layoutParams =
        new ConstraintLayout.LayoutParams(
            ViewGroup.LayoutParams.WRAP_CONTENT,
            ViewGroup.LayoutParams.WRAP_CONTENT);

    setStartState(selectedView, layoutParams);
    return layoutParams;
}
 

public final void hide(boolean inReversedOrder) {
    ConstraintLayout parent = getConstraintLayoutParent(this);
    if (notNull(parent)) {
        Transition transition = prepareStaggeredTransition(false, inReversedOrder);
        TransitionManager.beginDelayedTransition(parent, transition);
        setVisibility(View.GONE);
    }
}
 

public static boolean notNull(ConstraintLayout parent) {
    if (parent == null) {
        warning("Trying to run show() on a StaggeredAnimationGroup without (proper) parent.");
        return false;
    }
    return true;
}
 

@Test
public void getConstraintLayoutParent_returnsParent_ifParent_isConstraintLayout() {
    //given
    StaggeredAnimationGroup spiedGroup = prepareSpiedGroup();
    ViewParent parent = new ConstraintLayout(RuntimeEnvironment.application);
    when(spiedGroup.getParent()).thenReturn(parent);

    //when
    ConstraintLayout result = Utils.getConstraintLayoutParent(spiedGroup);

    //then
    assertThat(result).isEqualTo(parent);
}
 

@Test
public void getConstraintLayoutParent_returnsNull_ifParent_isNotConstraintLayout() {
    //given
    StaggeredAnimationGroup spiedGroup = prepareSpiedGroup();
    ViewParent parent = new FrameLayout(RuntimeEnvironment.application);
    when(spiedGroup.getParent()).thenReturn(parent);

    //when
    ConstraintLayout result = Utils.getConstraintLayoutParent(spiedGroup);

    //then
    assertThat(result).isNull();
}
 

@Test
public void getConstraintLayoutParent_returnsNull_ifParent_isNull() {
    //given
    StaggeredAnimationGroup spiedGroup = prepareSpiedGroup();
    when(spiedGroup.getParent()).thenReturn(null);

    //when
    ConstraintLayout result = Utils.getConstraintLayoutParent(spiedGroup);

    //then
    assertThat(result).isNull();
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.layout_transition_1);
    mSceneOne.clone(this, R.layout.layout_transition_1);
    mSceneTwo.clone(this, R.layout.layout_transition_2);

    mConstraintLayout = (ConstraintLayout) findViewById(R.id.constraintLayout);
    findViewById(R.id.button_next).setOnClickListener(this);
    findViewById(R.id.button_cancel).setOnClickListener(this);
}
 

@Test
public void mainActivityLayoutShouldHaveConstraintLayoutAsRoot() throws Exception {
    //
    LayoutInflater layoutInflater = appContext.getSystemService(LayoutInflater.class);
    View inflate = layoutInflater.inflate(R.layout.activity_main, null, false);
    assertThat(inflate, instanceOf(ConstraintLayout.class));
}
 

@Override
    public void onBinding(@NonNull ActivityMainBinding binding) {
//        ToolbarHelper.initPaddingTopDiffBar(binding.navMenu.extrasNav);
        ConstraintLayout layout = binding.navMenu.extrasNav.getHeaderView(0).findViewById(R.id.navAccHolder);
        layout.post(() -> {
            int topHeight = ScreenUtils.getStatusHeight(MainActivity.this) + ScreenUtils.dipTopx(MainActivity.this, 100);
            ViewGroup.LayoutParams params1 = layout.getLayoutParams();
            params1.height = topHeight;
            layout.setLayoutParams(params1);

            NavigationView.LayoutParams params2 = (NavigationView.LayoutParams) binding.navMenu.navDown.getLayoutParams();
            params2.topMargin = topHeight;
            binding.navMenu.navDown.setLayoutParams(params2);
        });
        ToolbarHelper.initFullBar(binding.includeBar.toolbar, this);
        initDrawer(binding.drawer, binding.includeBar.toolbar);
        binding.navigation.setOnNavigationItemSelectedListener(mOnNavigationItemSelectedListener);
        binding.navMenu.drawerViewPager.setAdapter(mDrawerPagerAdapter);
        binding.navMenu.drawerTabLayout.setupWithViewPager(binding.navMenu.drawerViewPager);
//        binding.fab.setOnClickListener(v -> {
//            if (App.Login.isOK()) {
//                launchTodo();
//            } else {
//                LoginActivity.launch(MainActivity.this);
//            }
//        });
    }
 

@Override
public void destroyItem(@NonNull ViewGroup container, int position, @NonNull Object object) {
    if (squarePage)
        container.removeView((ConstraintLayout)object);
    else
        container.removeView((LinearLayout)object);
}
 

/**
 * 沉浸式状态栏
 */
private void adjustStatusBar() {
    boolean immerse = Utils.immerseStatusBar(this);
    View statusBarView = findViewById(R.id.home_status_view);
    if (immerse) {
        ConstraintLayout.LayoutParams lp = (ConstraintLayout.LayoutParams) statusBarView.getLayoutParams();
        lp.height = Utils.getStatusBarHeight(this);
        statusBarView.setLayoutParams(lp);
    } else {
        statusBarView.setVisibility(View.GONE);
    }
}
 

private void init() {

        inflate(getContext(), R.layout.view_playback, this);

        setBackgroundColor(Color.BLACK);

        mAnalytics = Fa.get();

        TextureView mVideoTextureView = findViewById(R.id.video);
        mVideoTextureView.setSurfaceTextureListener(this);

        findViewById(R.id.close_button).setOnClickListener(this);
        findViewById(R.id.layout_share).setOnClickListener(this);
        findViewById(R.id.layout_save).setOnClickListener(this);

        // set margin of bottom icons to be appropriate size for screen
        View saveLayout = findViewById(R.id.layout_save);
        ConstraintLayout.LayoutParams layoutParams = (ConstraintLayout.LayoutParams) saveLayout
                .getLayoutParams();
        layoutParams.bottomMargin = getHeightOfNavigationBar();
        saveLayout.setLayoutParams(layoutParams);

        View shareLayout = findViewById(R.id.layout_share);
        layoutParams = (ConstraintLayout.LayoutParams) shareLayout.getLayoutParams();
        layoutParams.bottomMargin = getHeightOfNavigationBar();
        shareLayout.setLayoutParams(layoutParams);

        mAudioAttributes = new AudioAttributes.Builder()
                .setUsage(AudioAttributes.USAGE_MEDIA)
                .setContentType(AudioAttributes.CONTENT_TYPE_MOVIE)
                .build();

    }
 

AlbumItemsViewHolder(View itemView) {
    super(itemView);
    this.ivAlbumCover = (ImageView) itemView.findViewById(R.id.iv_album_cover);
    this.tvAlbumName = (TextView) itemView.findViewById(R.id.tv_album_name);
    this.tvAlbumPhotosCount = (TextView) itemView.findViewById(R.id.tv_album_photos_count);
    this.ivSelected = (ImageView) itemView.findViewById(R.id.iv_selected);
    this.mRoot = (ConstraintLayout) itemView.findViewById(R.id.m_root_view);
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    //setContentView(R.layout.activity_main);
    //ConstraintLayout layout = findViewById(R.id.layout);
    
    ConstraintLayout layout = new ConstraintLayout(this);
    DatePicker datePicker = new DatePicker(this);
    layout.addView(datePicker);
    setContentView(layout);
}
 

/**
 * Adjust the banner text layout {@link ConstraintLayout} vertical bias.
 *
 * @param percentBias to be set to the text layout
 */
private void adjustBannerTextVerticalBias(float percentBias) {
  int orientation = getContext().getResources().getConfiguration().orientation;
  if (orientation == Configuration.ORIENTATION_PORTRAIT) {
    ConstraintLayout.LayoutParams params = (ConstraintLayout.LayoutParams) instructionLayoutText.getLayoutParams();
    params.verticalBias = percentBias;
    instructionLayoutText.setLayoutParams(params);
  }
}
 

private void adjustBannerVerticalBias(float percentBias) {
  int orientation = itemView.getResources().getConfiguration().orientation;
  if (orientation == Configuration.ORIENTATION_PORTRAIT) {
    ConstraintLayout.LayoutParams params = (ConstraintLayout.LayoutParams) instructionLayoutText.getLayoutParams();
    params.verticalBias = percentBias;
    instructionLayoutText.setLayoutParams(params);
  }
}
 

private void updateUiNavigationFinished() {
  navigationView.retrieveNavigationMapboxMap().retrieveMap().removeMarker(paella);
  navigationView.setVisibility(View.GONE);
  message.setText("Launch Navigation");
  message.setLayoutParams(new ConstraintLayout.LayoutParams(ConstraintLayout.LayoutParams.MATCH_PARENT,
    ConstraintLayout.LayoutParams.MATCH_PARENT));
  launchNavigationFab.show();
}
 

private void showPasswordLayout() {
    final LinearLayout rescueCodeLayout = findViewById(R.id.rescueCodeLayout);
    final ConstraintLayout passwordInputLayout = findViewById(R.id.txtLoginPasswordLayout);

    rescueCodeLayout.setVisibility(View.GONE);
    passwordInputLayout.setVisibility(View.VISIBLE);
}
 

private void showRescueCodeLayout() {
    final LinearLayout rescueCodeLayout = findViewById(R.id.rescueCodeLayout);
    final ConstraintLayout passwordInputLayout = findViewById(R.id.txtLoginPasswordLayout);

    rescueCodeLayout.setVisibility(View.VISIBLE);
    passwordInputLayout.setVisibility(View.GONE);

}
 

/**
 * 沉浸式状态栏
 */
private void adjustStatusBar() {
    boolean immerse = Utils.immerseStatusBar(this);
    View statusBarView = findViewById(R.id.home_status_view);
    if (immerse) {
        ConstraintLayout.LayoutParams lp = (ConstraintLayout.LayoutParams) statusBarView.getLayoutParams();
        lp.height = Utils.getStatusBarHeight(this);
        statusBarView.setLayoutParams(lp);
    } else {
        statusBarView.setVisibility(View.GONE);
    }
}