Android tabhost + RadioGroup + PopupWindow

I made some changes based on the Code on the Internet, and kept records for learning.

As follows:

Package com. andyidea. tabdemo; import android. app. tabActivity; import android. content. intent; import android. OS. bundle; import android. util. displayMetrics; import android. view. display; import android. view. layoutInflater; import android. view. view; import android. view. view. onClickListener; import android. view. window; import android. widget. compoundButton; import android. widget. linearLayout; import android Oid. widget. popupWindow; import android. widget. radioButton; import android. widget. compoundButton. onCheckedChangeListener; import android. widget. tabHost; import android. widget. toast; public class MainTabActivity extends TabActivity implements OnCheckedChangeListener, OnClickListener {private TabHost mTabHost; private Intent mAIntent; private Intent mBIntent; private Intent mCIntent; private Intent MDIntent; private Intent mEIntent; private PopupWindow mPopupWindow; private region mR1; private RadioButton mR2; private region mR3; private region mR4; private LinearLayout region; private LinearLayout mLinearLayout4; private LinearLayout mLinearLayout5;/*** baseline screen density */public double STANDARD_DENSITY = 160;/** Called when the activity is first created. * // @ Override public void onCreate (Bundle savedInstanceState) {super. onCreate (savedInstanceState); requestWindowFeature (Window. FEATURE_NO_TITLE); setContentView (R. layout. maintabs); this. mAIntent = new Intent (this, AActivity. class); this. mBIntent = new Intent (this, BActivity. class); this. mCIntent = new Intent (this, CActivity. class); this. mDInte Nt = new Intent (this, DActivity. class); this. mEIntent = new Intent (this, EActivity. class); mR1 = (RadioButton) findViewById (R. id. radio_button0); mR1.setOnCheckedChangeListener (this); mR2 = (RadioButton) findViewById (R. id. radio_button1); mR2.setOnCheckedChangeListener (this); mR3 = (RadioButton) findViewById (R. id. radio_button2); mR3.setOnCheckedChangeListener (this); mR4 = (RadioButton) findVi EwById (R. id. radio_button3); mR4.setOnCheckedChangeListener (this); setupIntent (); initPopupMenu ();} private void initPopupMenu () {View mPopupMenu = LayoutInflater. from (this ). inflate (R. layout. popupmenu, null); mPopupWindow = new PopupWindow (rows, (int) (getDensityRatio () * 90), (int) (getDensityRatio () * 180); mLinearLayout1 = (LinearLayout) mPopupMenu. findViewById (R. id. zhanghao); mLinearL Ayout2 = (LinearLayout) mPopupMenu. findViewById (R. id. firav); mLinearLayout3 = (LinearLayout) mPopupMenu. findViewById (R. id. yijian); mLinearLayout4 = (LinearLayout) mPopupMenu. findViewById (R. id. abort); mLinearLayout5 = (LinearLayout) mPopupMenu. findViewById (R. id. update); mLinearLayout1.setOnClickListener (this); mLinearLayout2.setOnClickListener (this); mLinearLayout3.setOnClickListener (this); mLinear Layout4.setOnClickListener (this); mLinearLayout5.setOnClickListener (this);} private void dissmissPopupWindows () {if (mPopupWindow! = Null & mPopupWindow. isShowing () {mPopupWindow. dismiss () ;}} private double getDensityRatio () {DisplayMetrics displayMetrics = new DisplayMetrics (); Display display = getWindowManager (). getdefadisplay display (); display. getMetrics (displayMetrics); double w = displayMetrics. widthPixels; double h = displayMetrics. heightPixels; int CURRENT_DENSITY = displayMetrics. densityDpi; double DENSITY_RATIO = C URRENT_DENSITY/STANDARD_DENSITY; return DENSITY_RATIO ;}@ Override public void onCheckedChanged (CompoundButton buttonView, boolean isChecked) {if (isChecked) {System. out. println ("isChecked"); dissmissPopupWindows (); switch (buttonView. getId () {case R. id. radio_button0: this. mTabHost. setCurrentTabByTag ("A_TAB"); break; case R. id. radio_button1: this. mTabHost. setCurrentTabByTag ("B _TAB"); break; Case R. id. radio_button2: this. mTabHost. setCurrentTabByTag ("C_TAB"); break; case R. id. radio_button3: mPopupWindow. showAsDropDown (mR4, 0, 0); break ;}} private void setupIntent () {this. mTabHost = getTabHost (); TabHost localTabHost = this. mTabHost; localTabHost. addTab (buildTabSpec ("A_TAB", R. string. main_news, R. drawable. icon_0000n, this. mAIntent); localTabHost. addTab (buildTabSpec ("B _TAB", R. string. Main_down, R. drawable. icon_2_n, this. mBIntent); localTabHost. addTab (buildTabSpec ("C_TAB", R. string. main_message, R. drawable. icon_3_n, this. mCIntent); localTabHost. addTab (buildTabSpec ("D_TAB", R. string. more, R. drawable. icon_4_n, this. mDIntent);} private TabHost. tabSpec buildTabSpec (String tag, int resLabel, int resIcon, final Intent content) {return this. mTabHost. newTabSpec (tag ). setIndicato R (getString (resLabel), getResources (). getDrawable (resIcon )). setContent (content) ;}@ Override public void onClick (View v) {dissmissPopupWindows (); switch (v. getId () {case R. id. zhanghao: Toast. makeText (MainTabActivity. this, "Account Management", Toast. LENGTH_SHORT ). show (); break; case R. id. firav: Toast. makeText (MainTabActivity. this, "favorites", Toast. LENGTH_SHORT ). show (); break; case R. id. yijian: Toast. makeText (MainTabActivity. this, "feedback", Toast. LENGTH_SHORT ). show (); break; case R. id. abort: Toast. makeText (MainTabActivity. this, "About Us", Toast. LENGTH_SHORT ). show (); break; case R. id. update: Toast. makeText (MainTabActivity. this, "version Update", Toast. LENGTH_SHORT ). show (); break ;}} package com. andyidea. tabdemo; import android. app. tabActivity; import android. content. intent; import android. OS. bundle; import android. u Til. displayMetrics; import android. view. display; import android. view. layoutInflater; import android. view. view; import android. view. view. onClickListener; import android. view. window; import android. widget. compoundButton; import android. widget. linearLayout; import android. widget. popupWindow; import android. widget. radioButton; import android. widget. compoundButton. onCheckedChangeListener; import android. widget. ta BHost; import android. widget. toast; public class MainTabActivity extends TabActivity listener, OnClickListener {private TabHost mTabHost; private Intent mAIntent; private Intent mBIntent; private Intent mCIntent; private Intent mDIntent; private Intent mEIntent; private PopupWindow listener; private RadioButton mR1; private RadioButton mR2; private RadioButton mR3; private RadioBut Ton mR4; private LinearLayout region; private LinearLayout mLinearLayout2; private LinearLayout mLinearLayout3; private LinearLayout region;/*** benchmark screen density */public double STANDARD_DENSITY = 160; /** Called when the activity is first created. * // @ Overridepublic void onCreate (Bundle savedInstanceState) {super. onCreate (savedInstanceState); requestWindowFeatur E (Window. FEATURE_NO_TITLE); setContentView (R. layout. maintabs); this. mAIntent = new Intent (this, AActivity. class); this. mBIntent = new Intent (this, BActivity. class); this. mCIntent = new Intent (this, CActivity. class); this. mDIntent = new Intent (this, DActivity. class); this. mEIntent = new Intent (this, EActivity. class); mR1 = (RadioButton) findViewById (R. id. radio_button0); mR1.setOnCheckedChangeListener (thi S); mR2 = (RadioButton) findViewById (R. id. radio_button1); mR2.setOnCheckedChangeListener (this); mR3 = (RadioButton) findViewById (R. id. radio_button2); mR3.setOnCheckedChangeListener (this); mR4 = (RadioButton) findViewById (R. id. radio_button3); mR4.setOnCheckedChangeListener (this); setupIntent (); initPopupMenu ();} private void initPopupMenu () {View mPopupMenu = LayoutInflater. from (this ). inflate (R. layout. p Opupmenu, null); mPopupWindow = new PopupWindow (rows, (int) (getDensityRatio () * 90), (int) (getDensityRatio () * 180); mLinearLayout1 = (LinearLayout) mPopupMenu. findViewById (R. id. zhanghao); mLinearLayout2 = (LinearLayout) mPopupMenu. findViewById (R. id. firav); mLinearLayout3 = (LinearLayout) mPopupMenu. findViewById (R. id. yijian); mLinearLayout4 = (LinearLayout) mPopupMenu. findViewById (R. id. abort); mL InearLayout5 = (LinearLayout) mPopupMenu. findViewById (R. id. update); listener (this); mLinearLayout2.setOnClickListener (this); mLinearLayout3.setOnClickListener (this); listener (this);} private void dissmissPopupWindows () {if! = Null & mPopupWindow. isShowing () {mPopupWindow. dismiss () ;}} private double getDensityRatio () {DisplayMetrics displayMetrics = new DisplayMetrics (); Display display = getWindowManager (). getdefadisplay display (); display. getMetrics (displayMetrics); double w = displayMetrics. widthPixels; double h = displayMetrics. heightPixels; int CURRENT_DENSITY = displayMetrics. densityDpi; double DENSITY_RATIO = CURRENT_DENSITY/STANDARD_DENSITY; return success ;}@ Overridepublic void onCheckedChanged (CompoundButton buttonView, boolean isChecked) {if (isChecked) {System. out. println ("isChecked"); dissmissPopupWindows (); switch (buttonView. getId () {case R. id. radio_button0: this. mTabHost. setCurrentTabByTag ("A_TAB"); break; case R. id. radio_button1: this. mTabHost. setCurrentTabByTag ("B _TAB"); break; case R. id. radio_button2: this. mTabHost. setCurrentTabByTag ("C_TAB"); break; case R. id. radio_button3: mPopupWindow. showAsDropDown (mR4, 0, 0); break ;}} private void setupIntent () {this. mTabHost = getTabHost (); TabHost localTabHost = this. mTabHost; localTabHost. addTab (buildTabSpec ("A_TAB", R. string. main_news, R. drawable. icon_0000n, this. mAIntent); localTabHost. addTab (buildTabSpec ("B _TAB", R. string. main_down, R. drawable. icon_2_n, this. mBIntent); localTabHost. addTab (buildTabSpec ("C_TAB", R. string. main_message, R. drawable. icon_3_n, this. mCIntent); localTabHost. addTab (buildTabSpec ("D_TAB", R. string. more, R. drawable. icon_4_n, this. mDIntent);} private TabHost. tabSpec buildTabSpec (String tag, int resLabel, int resIcon, final Intent content) {return this. mTabHost. newTabSpec (tag ). setIndicator (getString (resLabel), getResources (). getDrawable (resIcon )). setContent (content) ;}@ Overridepublic void onClick (View v) {dissmissPopupWindows (); switch (v. getId () {case R. id. zhanghao: Toast. makeText (MainTabActivity. this, "Account Management", Toast. LENGTH_SHORT ). show (); break; case R. id. firav: Toast. makeText (MainTabActivity. this, "favorites", Toast. LENGTH_SHORT ). show (); break; case R. id. yijian: Toast. makeText (MainTabActivity. this, "feedback", Toast. LENGTH_SHORT ). show (); break; case R. id. abort: Toast. makeText (MainTabActivity. this, "About Us", Toast. LENGTH_SHORT ). show (); break; case R. id. update: Toast. makeText (MainTabActivity. this, "version Update", Toast. LENGTH_SHORT ). show (); break ;}}}