Example usage for android.widget RelativeLayout CENTER_VERTICAL

List of usage examples for android.widget RelativeLayout CENTER_VERTICAL

Introduction

In this page you can find the example usage for android.widget RelativeLayout CENTER_VERTICAL.

Prototype

int CENTER_VERTICAL

To view the source code for android.widget RelativeLayout CENTER_VERTICAL.

Click Source Link

Document

Rule that centers the child vertically with respect to the bounds of its RelativeLayout parent.

Usage

From source file:Main.java

public static RelativeLayout.LayoutParams getViewPositionParams(String alignment, int offsetX, int offsetY,
        int w, int h, int below) {

    // create a layout params
    RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(w, h);

    // alignment vertical rule
    if (alignment.contains("top")) {
        params.addRule(RelativeLayout.ALIGN_PARENT_TOP);
    } else if (alignment.contains("bottom")) {
        params.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM);
    } else {/* w ww. java2 s.  c o  m*/
        params.addRule(RelativeLayout.CENTER_VERTICAL);
    }

    // alignment horizontal rule
    if (alignment.contains("left")) {
        params.addRule(RelativeLayout.ALIGN_PARENT_LEFT);
    } else if (alignment.contains("right")) {
        params.addRule(RelativeLayout.ALIGN_PARENT_RIGHT);
    } else {
        params.addRule(RelativeLayout.CENTER_HORIZONTAL);
    }

    // set below
    if (below > 0) {
        params.addRule(RelativeLayout.BELOW, below);
    }

    return params;
}

From source file:Main.java

public static void applyAttributes(JSONObject jsonObject, RelativeLayout.LayoutParams layoutParams)
        throws JSONException {

    applyRelativeLayoutRuleIfExists(jsonObject, layoutParams, TO_LEFT_OF, RelativeLayout.LEFT_OF);
    applyRelativeLayoutRuleIfExists(jsonObject, layoutParams, TO_RIGHT_OF, RelativeLayout.RIGHT_OF);
    applyRelativeLayoutRuleIfExists(jsonObject, layoutParams, BELOW, RelativeLayout.BELOW);
    applyRelativeLayoutRuleIfExists(jsonObject, layoutParams, ABOVE, RelativeLayout.ABOVE);
    applyRelativeLayoutRuleIfExists(jsonObject, layoutParams, ALIGN_LEFT, RelativeLayout.ALIGN_LEFT);
    applyRelativeLayoutRuleIfExists(jsonObject, layoutParams, ALIGN_RIGHT, RelativeLayout.ALIGN_RIGHT);
    applyRelativeLayoutRuleIfExists(jsonObject, layoutParams, ALIGN_TOP, RelativeLayout.ALIGN_TOP);

    applyRelativeLayoutBooleanIfExists(jsonObject, layoutParams, ALIGN_PARENT_TOP,
            RelativeLayout.ALIGN_PARENT_TOP);
    applyRelativeLayoutBooleanIfExists(jsonObject, layoutParams, ALIGN_PARENT_BOTTOM,
            RelativeLayout.ALIGN_PARENT_BOTTOM);
    applyRelativeLayoutBooleanIfExists(jsonObject, layoutParams, ALIGN_PARENT_RIGHT,
            RelativeLayout.ALIGN_PARENT_RIGHT);
    applyRelativeLayoutBooleanIfExists(jsonObject, layoutParams, ALIGN_PARENT_LEFT,
            RelativeLayout.ALIGN_PARENT_LEFT);
    applyRelativeLayoutBooleanIfExists(jsonObject, layoutParams, ALIGN_BASELINE, RelativeLayout.ALIGN_BASELINE);
    applyRelativeLayoutBooleanIfExists(jsonObject, layoutParams, ALIGN_PARENT_TOP,
            RelativeLayout.ALIGN_PARENT_TOP);
    applyRelativeLayoutBooleanIfExists(jsonObject, layoutParams, CENTER_HORIZONTAL,
            RelativeLayout.CENTER_HORIZONTAL);
    applyRelativeLayoutBooleanIfExists(jsonObject, layoutParams, CENTER_IN_PARENT,
            RelativeLayout.CENTER_IN_PARENT);
    applyRelativeLayoutBooleanIfExists(jsonObject, layoutParams, CENTER_VERTICAL,
            RelativeLayout.CENTER_VERTICAL);
}

From source file:com.learnncode.tabsample.BaseActivity.java

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_base);

    mTabHost = (FragmentTabHost) findViewById(android.R.id.tabhost);
    mTabHost.setup(this, getSupportFragmentManager(), android.R.id.tabcontent);
    mTabHost.addTab(mTabHost.newTabSpec("tab1").setIndicator(getResources().getString(R.string.tab_one)),
            TabOneFrgment.class, null);
    mTabHost.addTab(mTabHost.newTabSpec("tab2").setIndicator(getResources().getString(R.string.tab_two)),
            TabTwoFrgment.class, null);

    mTabHost.setCurrentTabByTag("tag2");

    for (int i = 0; i < mTabHost.getTabWidget().getChildCount(); i++) {

        TextView textView = (TextView) mTabHost.getTabWidget().getChildAt(i).findViewById(android.R.id.title);
        if (textView.getLayoutParams() instanceof RelativeLayout.LayoutParams) {

            RelativeLayout.LayoutParams params = (android.widget.RelativeLayout.LayoutParams) textView
                    .getLayoutParams();//w w w  .j  av a 2s.  c  o  m
            params.addRule(RelativeLayout.CENTER_HORIZONTAL);
            params.addRule(RelativeLayout.CENTER_VERTICAL);
            params.height = RelativeLayout.LayoutParams.MATCH_PARENT;
            params.width = RelativeLayout.LayoutParams.WRAP_CONTENT;
            mTabHost.getTabWidget().getChildAt(i).findViewById(android.R.id.title).setLayoutParams(params);

        } else if (textView.getLayoutParams() instanceof LinearLayout.LayoutParams) {
            LinearLayout.LayoutParams params = (android.widget.LinearLayout.LayoutParams) textView
                    .getLayoutParams();
            params.gravity = Gravity.CENTER;
            mTabHost.getTabWidget().getChildAt(i).findViewById(android.R.id.title).setLayoutParams(params);
        }
    }

    mTabHost.setOnTabChangedListener(new OnTabChangeListener() {

        @Override
        public void onTabChanged(String tabId) {

            android.support.v4.app.FragmentManager fragmentManager = getSupportFragmentManager();
            TabOneFrgment tabOneFrgment = (TabOneFrgment) fragmentManager.findFragmentByTag("tab1");
            TabTwoFrgment tabTwoFrgment = (TabTwoFrgment) fragmentManager.findFragmentByTag("tab2");
            android.support.v4.app.FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();

            if (tabId.equalsIgnoreCase("tab1")) {
                if (tabOneFrgment != null) {
                    if (tabTwoFrgment != null) {
                        fragmentTransaction.hide(tabTwoFrgment);
                    }
                    fragmentTransaction.show(tabOneFrgment);
                }
            } else {
                if (tabTwoFrgment != null) {
                    if (tabOneFrgment != null) {
                        fragmentTransaction.hide(tabOneFrgment);
                    }
                    fragmentTransaction.show(tabTwoFrgment);
                }
            }
            fragmentTransaction.commit();
        }
    });
}

From source file:es.uma.lcc.lockpic.SelectorActivity.java

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    Button btnForward, btnBack, btnFaces;
    RelativeLayout layout = new RelativeLayout(this);
    layout.setBackgroundResource(R.drawable.background_gradient);

    mPath = getIntent().getStringExtra("path");

    SelectorActivityBundle bundle = (SelectorActivityBundle) getLastCustomNonConfigurationInstance();
    if (bundle != null) {
        mDrawView = new DrawView(this, mPath, false);
        mDrawView.setRectangles(bundle.getRectangles());
        mDrawView.setViewMode(bundle.getViewMode());
        mDrawView.setAspectRate(bundle.getAspectRate());
    } else {/*  w w  w.  j  ava2s  .com*/
        mDrawView = new DrawView(this, mPath, true);
    }
    mDrawView.setId(1);

    RelativeLayout.LayoutParams lpDrawView = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT,
            LayoutParams.WRAP_CONTENT);
    lpDrawView.addRule(RelativeLayout.CENTER_VERTICAL);
    mDrawView.setLayoutParams(lpDrawView);
    layout.addView(mDrawView, lpDrawView);

    btnForward = new Button(this);
    btnForward.setText(R.string.selectorForwardButton);
    btnForward.setId(2);
    btnForward.setOnClickListener(new forwardButtonListener());
    RelativeLayout.LayoutParams lpButton = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT,
            LayoutParams.WRAP_CONTENT);
    lpButton.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM);
    lpButton.addRule(RelativeLayout.ALIGN_PARENT_RIGHT);
    layout.addView(btnForward, lpButton);

    btnBack = new Button(this);
    btnBack.setText(R.string.selectorBackButton);
    btnBack.setId(3);
    btnBack.setOnClickListener(new backButtonListener());
    lpButton = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
    lpButton.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM);
    lpButton.addRule(RelativeLayout.ALIGN_PARENT_LEFT);
    layout.addView(btnBack, lpButton);

    btnFaces = new Button(this);
    btnFaces.setText(R.string.facesButton);
    btnFaces.setId(4);
    btnFaces.setOnClickListener(new FacesButtonListener());
    if (!isViewSelectingRegions())
        btnFaces.setVisibility(View.INVISIBLE);
    lpButton = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
    lpButton.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM);
    lpButton.addRule(RelativeLayout.CENTER_HORIZONTAL);
    layout.addView(btnFaces, lpButton);

    setContentView(layout);
}

From source file:org.telegram.ui.ChangePhoneHelpActivity.java

@Override
public View createView(Context context) {
    actionBar.setBackButtonImage(R.drawable.ic_ab_back);
    actionBar.setAllowOverlayTitle(true);

    TLRPC.User user = UserConfig.getCurrentUser();
    String value;/*from  ww w  .j av a2  s. c  o m*/
    if (user != null && user.phone != null && user.phone.length() != 0) {
        value = PhoneFormat.getInstance().format("+" + user.phone);
    } else {
        value = LocaleController.getString("NumberUnknown", R.string.NumberUnknown);
    }

    actionBar.setTitle(value);
    actionBar.setActionBarMenuOnItemClick(new ActionBar.ActionBarMenuOnItemClick() {
        @Override
        public void onItemClick(int id) {
            if (id == -1) {
                finishFragment();
            }
        }
    });

    fragmentView = new RelativeLayout(context);
    fragmentView.setOnTouchListener(new View.OnTouchListener() {
        @Override
        public boolean onTouch(View v, MotionEvent event) {
            return true;
        }
    });

    RelativeLayout relativeLayout = (RelativeLayout) fragmentView;

    ScrollView scrollView = new ScrollView(context);
    relativeLayout.addView(scrollView);
    RelativeLayout.LayoutParams layoutParams3 = (RelativeLayout.LayoutParams) scrollView.getLayoutParams();
    layoutParams3.width = LayoutHelper.MATCH_PARENT;
    layoutParams3.height = LayoutHelper.WRAP_CONTENT;
    layoutParams3.addRule(RelativeLayout.CENTER_VERTICAL, RelativeLayout.TRUE);
    scrollView.setLayoutParams(layoutParams3);

    LinearLayout linearLayout = new LinearLayout(context);
    linearLayout.setOrientation(LinearLayout.VERTICAL);
    linearLayout.setPadding(0, AndroidUtilities.dp(20), 0, AndroidUtilities.dp(20));
    scrollView.addView(linearLayout);
    ScrollView.LayoutParams layoutParams = (ScrollView.LayoutParams) linearLayout.getLayoutParams();
    layoutParams.width = ScrollView.LayoutParams.MATCH_PARENT;
    layoutParams.height = ScrollView.LayoutParams.WRAP_CONTENT;
    linearLayout.setLayoutParams(layoutParams);

    ImageView imageView = new ImageView(context);
    imageView.setImageResource(R.drawable.phone_change);
    linearLayout.addView(imageView);
    LinearLayout.LayoutParams layoutParams2 = (LinearLayout.LayoutParams) imageView.getLayoutParams();
    layoutParams2.width = LayoutHelper.WRAP_CONTENT;
    layoutParams2.height = LayoutHelper.WRAP_CONTENT;
    layoutParams2.gravity = Gravity.CENTER_HORIZONTAL;
    imageView.setLayoutParams(layoutParams2);

    TextView textView = new TextView(context);
    textView.setTextSize(TypedValue.COMPLEX_UNIT_DIP, 16);
    textView.setGravity(Gravity.CENTER_HORIZONTAL);
    //textView.setTextColor(0xff212121);

    try {
        textView.setText(AndroidUtilities
                .replaceTags(LocaleController.getString("PhoneNumberHelp", R.string.PhoneNumberHelp)));
    } catch (Exception e) {
        FileLog.e("tmessages", e);
        textView.setText(LocaleController.getString("PhoneNumberHelp", R.string.PhoneNumberHelp));
    }
    linearLayout.addView(textView);
    layoutParams2 = (LinearLayout.LayoutParams) textView.getLayoutParams();
    layoutParams2.width = LayoutHelper.WRAP_CONTENT;
    layoutParams2.height = LayoutHelper.WRAP_CONTENT;
    layoutParams2.gravity = Gravity.CENTER_HORIZONTAL;
    layoutParams2.leftMargin = AndroidUtilities.dp(20);
    layoutParams2.rightMargin = AndroidUtilities.dp(20);
    layoutParams2.topMargin = AndroidUtilities.dp(56);
    textView.setLayoutParams(layoutParams2);

    textView = new TextView(context);
    textView.setTextSize(TypedValue.COMPLEX_UNIT_DIP, 18);
    textView.setGravity(Gravity.CENTER_HORIZONTAL);
    textView.setTextColor(ContextCompat.getColor(context, R.color.colorAccent) /*0xff4d83b3*/);
    textView.setText(LocaleController.getString("PhoneNumberChange", R.string.PhoneNumberChange));
    textView.setTypeface(AndroidUtilities.getTypeface("fonts/rmedium.ttf"));
    textView.setPadding(AndroidUtilities.dp(16), AndroidUtilities.dp(12), AndroidUtilities.dp(16),
            AndroidUtilities.dp(12));
    textView.setBackground(context.getDrawable(R.drawable.list_selector));
    linearLayout.addView(textView);
    layoutParams2 = (LinearLayout.LayoutParams) textView.getLayoutParams();
    layoutParams2.width = LayoutHelper.WRAP_CONTENT;
    layoutParams2.height = LayoutHelper.WRAP_CONTENT;
    layoutParams2.gravity = Gravity.CENTER_HORIZONTAL;
    layoutParams2.leftMargin = AndroidUtilities.dp(20);
    layoutParams2.rightMargin = AndroidUtilities.dp(20);
    layoutParams2.topMargin = AndroidUtilities.dp(46);
    textView.setLayoutParams(layoutParams2);

    textView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            if (getParentActivity() == null) {
                return;
            }
            AlertDialog.Builder builder = new AlertDialog.Builder(getParentActivity());
            builder.setTitle(LocaleController.getString("AppName", R.string.AppName));
            builder.setMessage(LocaleController.getString("PhoneNumberAlert", R.string.PhoneNumberAlert));
            builder.setPositiveButton(LocaleController.getString("OK", R.string.OK),
                    new DialogInterface.OnClickListener() {
                        @Override
                        public void onClick(DialogInterface dialogInterface, int i) {
                            presentFragment(new ChangePhoneActivity(), true);
                        }
                    });
            builder.setNegativeButton(LocaleController.getString("Cancel", R.string.Cancel), null);
            showDialog(builder.create());
        }
    });

    return fragmentView;
}

From source file:touchgallery.UrlTouchImageView.java

@SuppressWarnings("deprecation")
protected void init() {
    mImageView = new TouchImageView(mContext);
    LayoutParams params = new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT);
    mImageView.setLayoutParams(params);/*w ww  .  ja  va2 s .  c  om*/
    this.addView(mImageView);
    mImageView.setVisibility(GONE);

    mProgressBar = new ProgressBar(mContext, null, android.R.attr.progressBarStyleHorizontal);
    params = new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT);
    params.addRule(RelativeLayout.CENTER_VERTICAL);
    params.setMargins(30, 0, 30, 0);
    mProgressBar.setLayoutParams(params);
    mProgressBar.setIndeterminate(false);
    mProgressBar.setMax(100);
    this.addView(mProgressBar);
}

From source file:dev.nick.tiles.tile.TileView.java

protected RelativeLayout.LayoutParams generateCenterParams(int w, int h) {
    RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(w, h);
    params.addRule(RelativeLayout.CENTER_HORIZONTAL);
    params.addRule(RelativeLayout.CENTER_VERTICAL);
    return params;
}

From source file:csms19.inapp.msg.customgallery.BucketHomeFragmentActivity.java

@SuppressLint("ResourceAsColor")
@Override//ww w  .  j a v a  2s .com
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    setContentView(R.layout.activity_home_customgallery);
    String name = getIntent().getStringExtra("username");
    mediasellistnr = this;
    chooserheadertext = (TextView) findViewById(R.id.chooserheadertext);
    chooserhbackbtnlay = (RelativeLayout) findViewById(R.id.chooserhbackbtnlay);
    if (name != null)
        chooserheadertext.setText(name);

    mTabHost = (FragmentTabHost) findViewById(android.R.id.tabhost);

    chooserhbackbtnlay.setOnClickListener(clickListener);

    mTabHost.setup(this, getSupportFragmentManager(), R.id.realTabcontent);

    if (MediaChooserConstants.showVideo) {
        mTabHost.addTab(mTabHost.newTabSpec("tab2").setIndicator("Videos" + "      "),
                BucketVideoFragment.class, null);
    }
    // ///////Images set right tab so write below
    if (MediaChooserConstants.showImage) {
        mTabHost.addTab(mTabHost.newTabSpec("tab1").setIndicator("Images" + "      "),
                BucketImageFragment.class, null);
    }

    // mTabHost.getTabWidget().setBackgroundColor(
    // getResources().getColor(R.color.tabs_color));

    for (int i = 0; i < mTabHost.getTabWidget().getChildCount(); i++) {

        View childView = mTabHost.getTabWidget().getChildAt(i);
        TextView textView = (TextView) childView.findViewById(android.R.id.title);

        if (textView.getLayoutParams() instanceof RelativeLayout.LayoutParams) {

            RelativeLayout.LayoutParams params = (android.widget.RelativeLayout.LayoutParams) textView
                    .getLayoutParams();
            params.addRule(RelativeLayout.CENTER_HORIZONTAL);
            params.addRule(RelativeLayout.CENTER_VERTICAL);
            params.height = RelativeLayout.LayoutParams.MATCH_PARENT;
            params.width = RelativeLayout.LayoutParams.WRAP_CONTENT;
            textView.setLayoutParams(params);

        } else if (textView.getLayoutParams() instanceof LinearLayout.LayoutParams) {
            LinearLayout.LayoutParams params = (android.widget.LinearLayout.LayoutParams) textView
                    .getLayoutParams();
            params.gravity = Gravity.CENTER;
            textView.setLayoutParams(params);
        }
        textView.setTextColor(getResources().getColor(R.color.black));
        textView.setTextSize(convertDipToPixels(10));
    }

    ((TextView) (mTabHost.getTabWidget().getChildAt(1).findViewById(android.R.id.title)))
            .setTextColor(Color.BLACK);
    ((TextView) (mTabHost.getTabWidget().getChildAt(0).findViewById(android.R.id.title)))
            .setTextColor(Color.BLACK);

    mTabHost.setOnTabChangedListener(new OnTabChangeListener() {

        @Override
        public void onTabChanged(String tabId) {

            android.support.v4.app.FragmentManager fragmentManager = getSupportFragmentManager();
            BucketImageFragment imageFragment = (BucketImageFragment) fragmentManager.findFragmentByTag("tab1");
            BucketVideoFragment videoFragment = (BucketVideoFragment) fragmentManager.findFragmentByTag("tab2");
            android.support.v4.app.FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();

            if (tabId.equalsIgnoreCase("tab1")) {

                if (imageFragment == null) {
                    BucketImageFragment newImageFragment = new BucketImageFragment();
                    fragmentTransaction.add(R.id.realTabcontent, newImageFragment, "tab1");

                } else {

                    if (videoFragment != null) {
                        fragmentTransaction.hide(videoFragment);
                    }

                    fragmentTransaction.show(imageFragment);

                }
                ((TextView) (mTabHost.getTabWidget().getChildAt(0).findViewById(android.R.id.title)))
                        .setTextColor(Color.BLACK);
                ((TextView) (mTabHost.getTabWidget().getChildAt(1).findViewById(android.R.id.title)))
                        .setTextColor(Color.BLACK);

            } else {

                if (videoFragment == null) {

                    final BucketVideoFragment newVideoFragment = new BucketVideoFragment();
                    fragmentTransaction.add(R.id.realTabcontent, newVideoFragment, "tab2");

                } else {

                    if (imageFragment != null) {
                        fragmentTransaction.hide(imageFragment);
                    }

                    fragmentTransaction.show(videoFragment);
                }

                ((TextView) (mTabHost.getTabWidget().getChildAt(0).findViewById(android.R.id.title)))
                        .setTextColor(Color.BLACK);
                ((TextView) (mTabHost.getTabWidget().getChildAt(1).findViewById(android.R.id.title)))
                        .setTextColor(Color.BLACK);

            }

            fragmentTransaction.commit();
        }
    });

}

From source file:com.nicolls.ablum.activity.BucketHomeFragmentActivity.java

@SuppressLint("ResourceAsColor")
@Override//from   w ww. ja  v  a2  s.  c om
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    setContentView(R.layout.activity_home_media_chooser);
    mediaType = getIntent().getStringExtra("mediaType");
    List<String> pathList = getIntent().getStringArrayListExtra("pathList");

    headerBarTitle = (TextView) findViewById(R.id.titleTextViewFromMediaChooserHeaderBar);
    headerBarCamera = (ImageView) findViewById(R.id.cameraImageViewFromMediaChooserHeaderBar);
    headerBarBack = (ImageView) findViewById(R.id.backArrowImageViewFromMediaChooserHeaderView);
    headerBarDone = (TextView) findViewById(R.id.doneTextViewViewFromMediaChooserHeaderView);
    mTabHost = (FragmentTabHost) findViewById(android.R.id.tabhost);

    headerBarBack.setOnClickListener(clickListener);
    headerBarCamera.setOnClickListener(clickListener);
    headerBarDone.setOnClickListener(clickListener);

    headerBarDone.setVisibility(View.INVISIBLE);

    mTabHost.setup(this, getSupportFragmentManager(), R.id.realTabcontent);
    mTabHost.addTab(
            mTabHost.newTabSpec("tab1").setIndicator(getResources().getString(R.string.images_tab) + "      "),
            BucketImageFragment.class, null);
    mTabHost.addTab(
            mTabHost.newTabSpec("tab2").setIndicator(getResources().getString(R.string.videos_tab) + "      "),
            BucketVideoFragment.class, null);

    mTabHost.getTabWidget().setBackgroundColor(getResources().getColor(R.color.tabs_color));

    for (int i = 0; i < mTabHost.getTabWidget().getChildCount(); i++) {

        View childView = mTabHost.getTabWidget().getChildAt(i);
        TextView textView = (TextView) childView.findViewById(android.R.id.title);

        if (textView.getLayoutParams() instanceof RelativeLayout.LayoutParams) {

            RelativeLayout.LayoutParams params = (RelativeLayout.LayoutParams) textView.getLayoutParams();
            params.addRule(RelativeLayout.CENTER_HORIZONTAL);
            params.addRule(RelativeLayout.CENTER_VERTICAL);
            params.height = RelativeLayout.LayoutParams.MATCH_PARENT;
            params.width = RelativeLayout.LayoutParams.WRAP_CONTENT;
            textView.setLayoutParams(params);

        } else if (textView.getLayoutParams() instanceof LinearLayout.LayoutParams) {
            LinearLayout.LayoutParams params = (LinearLayout.LayoutParams) textView.getLayoutParams();
            params.gravity = Gravity.CENTER;
            textView.setLayoutParams(params);
        }
        textView.setTextColor(getResources().getColor(R.color.tabs_title_color));
        textView.setTextSize(convertDipToPixels(10));
    }

    ((TextView) (mTabHost.getTabWidget().getChildAt(1).findViewById(android.R.id.title)))
            .setTextColor(getResources().getColor(R.color.headerbar_selected_tab_color));
    ((TextView) (mTabHost.getTabWidget().getChildAt(0).findViewById(android.R.id.title)))
            .setTextColor(Color.WHITE);

    mTabHost.setOnTabChangedListener(new OnTabChangeListener() {

        @Override
        public void onTabChanged(String tabId) {
            //            Toast.makeText(getApplicationContext(),tabId,Toast.LENGTH_LONG).show();
            android.support.v4.app.FragmentManager fragmentManager = getSupportFragmentManager();
            BucketImageFragment imageFragment = (BucketImageFragment) fragmentManager.findFragmentByTag("tab1");
            BucketVideoFragment videoFragment = (BucketVideoFragment) fragmentManager.findFragmentByTag("tab2");
            android.support.v4.app.FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();

            if (tabId.equalsIgnoreCase("tab1")) {

                headerBarTitle.setText(getResources().getString(R.string.image));
                headerBarCamera.setBackgroundResource(R.drawable.selector_camera_button);
                headerBarCamera.setTag(getResources().getString(R.string.image));

                if (imageFragment == null) {
                    BucketImageFragment newImageFragment = new BucketImageFragment();
                    fragmentTransaction.add(R.id.realTabcontent, newImageFragment, "tab1");

                } else {

                    if (videoFragment != null) {
                        fragmentTransaction.hide(videoFragment);
                    }

                    fragmentTransaction.show(imageFragment);

                }
                ((TextView) (mTabHost.getTabWidget().getChildAt(0).findViewById(android.R.id.title)))
                        .setTextColor(getResources().getColor(R.color.headerbar_selected_tab_color));
                ((TextView) (mTabHost.getTabWidget().getChildAt(1).findViewById(android.R.id.title)))
                        .setTextColor(Color.WHITE);

            } else {
                headerBarTitle.setText(getResources().getString(R.string.video));
                headerBarCamera.setBackgroundResource(R.drawable.selector_video_button);
                headerBarCamera.setTag(getResources().getString(R.string.video));

                if (videoFragment == null) {

                    final BucketVideoFragment newVideoFragment = new BucketVideoFragment();
                    fragmentTransaction.add(R.id.realTabcontent, newVideoFragment, "tab2");

                } else {

                    if (imageFragment != null) {
                        fragmentTransaction.hide(imageFragment);
                    }

                    fragmentTransaction.show(videoFragment);
                }

                ((TextView) (mTabHost.getTabWidget().getChildAt(0).findViewById(android.R.id.title)))
                        .setTextColor(Color.WHITE);
                ((TextView) (mTabHost.getTabWidget().getChildAt(1).findViewById(android.R.id.title)))
                        .setTextColor(getResources().getColor(R.color.headerbar_selected_tab_color));

            }

            fragmentTransaction.commit();
        }
    });

    RelativeLayout.LayoutParams params = (RelativeLayout.LayoutParams) headerBarCamera.getLayoutParams();
    params.height = convertDipToPixels(40);
    params.width = convertDipToPixels(40);
    headerBarCamera.setLayoutParams(params);
    headerBarCamera.setScaleType(ScaleType.CENTER_INSIDE);
    headerBarCamera.setPadding(convertDipToPixels(15), convertDipToPixels(15), convertDipToPixels(15),
            convertDipToPixels(15));

    if (TextUtils.equals(mediaType, MediaChooserConstants.TYPE_PHOTO)) {//?
        mTabHost.setCurrentTab(0);
        headerBarTitle.setText(getResources().getString(R.string.image));
        headerBarCamera.setTag(getResources().getString(R.string.image));
        headerBarCamera.setBackgroundResource(R.drawable.selector_camera_button);
    } else {
        mTabHost.setCurrentTab(1);
        headerBarTitle.setText(getResources().getString(R.string.video));
        headerBarCamera.setTag(getResources().getString(R.string.video));
        headerBarCamera.setBackgroundResource(R.drawable.selector_video_button);
    }
}

From source file:r2b.apps.view.base.BaseAbsListFragment.java

@Override
protected void initViews() {
    absListView = (AbsListView) getView().findViewById(android.R.id.list);

    emptyView = getEmptyView();//from www.ja  v a 2  s . com
    errorView = getErrorView();
    loadingView = getLoadingView();

    RelativeLayout.LayoutParams lp = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
    lp.addRule(RelativeLayout.CENTER_HORIZONTAL);
    lp.addRule(RelativeLayout.CENTER_VERTICAL);
    RelativeLayout rl = new RelativeLayout(getActivity());
    rl.setLayoutParams(lp);

    if (emptyView != null) {
        rl.addView(emptyView);
    }
    if (errorView != null) {
        rl.addView(errorView);
    }
    if (loadingView != null) {
        rl.addView(loadingView);
    }

    ViewGroup parent = (ViewGroup) absListView.getParent();
    parent.addView(rl);
    absListView.setEmptyView(rl);

    showEmptyView();
}