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Free Source Code and Program Tips
Eclipse developed Android, Hello Spinner (Study 10)
Dec 10th
HelloSpinner.java Source 1 package com.example.test; import android.app.Activity; import android.os.Bundle; import android.widget.ArrayAdapter; import android.widget.Spinner; public class HelloSpinner extends Activity (@ Overridepublic void onCreate (Bundle savedInstanceState) ( super.onCreate (savedInstanceState); setContentView (R.layout.main); Spinner s = (Spinner) findViewById (R.id.spinner); ArrayAdapter adapter = ArrayAdapter.createFromResource (this, R.array.planets, android.R. layout.simple_spinner_item); adapter.setDropDownViewResource (android.R.layout.simple_spinner_dropdown_item); s.setAdapter (adapter);)) layout-> main.xml 1 <? xml version = "1.0"
Eclipse developed Android, Hello FormStuff (study 9)
Dec 9th
1 HelloFormStuff. Java code is as follows 1 package com.example.test; import android.app.Activity; import android.os.Bundle; import android.view.KeyEvent; import android.view.View; import android.widget.CheckBox; import android.widget.EditText; import android.widget.ImageButton; import android.widget.RadioButton; import android.widget.Toast; import android.widget.ToggleButton; public class HelloFormStuff extends Activity (/ ** Called when the activity is first created. * / @ Override public void onCreate (Bundle savedInstanceState) (super.onCreate (savedInstanceState);
Eclipse developed Android, Hello, TimePicker (study 8)
Dec 8th
Hello, TimePicker A TimePicker is a Widget that allows the User to Select the time by hour, minute and AM or PM. Start a new project / Activity called HelloTimePicker. Modify HelloTimePicker.java code is as follows: 1 package com.example.test; import java.util.Calendar; import android.app.Activity; import android.app.Dialog; import android.app.TimePickerDialog; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.TextView;
Eclipse developed Android, Hello, WebView (study 6)
Dec 6th
Hello, WebView A WebView allows you to Create your own Web Browser Activity. In this Tutorial, we'll Create a simple Activity that can View Web pages. Learning Address: http://androidappdocs.appspot.com/guide/tutorials/views/hello-webview.html HelloWebView.java Code 1 package com.example.test; import android.app.Activity; import android.os.Bundle; import android.webkit.WebView; public class HelloWebView extends Activity (WebView webview; / ** Called when the activity is first
Eclipse developed Android, Hello, MapView (study 5)
Dec 5th
Hello, MapView Learning Address: http://androidappdocs.appspot.com/guide/tutorials/views/hello-mapview.html HelloItemizedOverlay.java Code 1 package com.example.test; import java.util.ArrayList; import android.graphics.drawable.Drawable; import com.google.android.maps.ItemizedOverlay; import com.google.android.maps.OverlayItem; public class HelloItemizedOverlay extends ItemizedOverlay (private ArrayList <OverlayItem> mOverlays = new ArrayList <OverlayItem> (); public HelloItemizedOverlay (Drawable defaultMarker) (super (boundCenterBottom (defaultMarker ));// TODO Auto-generated constructor stub) @ Overridepublic int size () (return mOverlays. size ();) public void
Eclipse developed Android, TableLayout (study 4)
Dec 3rd
Hello, TableLayout A TableLayout is a ViewGroup that will Lay child View elements into rows and columns. Start a new project / Activity called HelloTableLayout. Open the layout file. Make it like so: 1.0 & quot ; encoding = & quot ; utf – 8 & quot ;?& gt ; & lt ; TableLayout xmlns
Eclipse developed Android, RelativeLayout (study 3)
Dec 2nd
Hello, RelativeLayout A RelativeLayout is a ViewGroup that allows you to layout child elements in positions relative to the parent or siblings elements. Start a new project / Activity called HelloRelativeLayout. Open the layout file. Make it like so: 1.0 & quot ; encoding = & quot ; utf – 8 & quot ;?& gt
Eclipse developed Android, LinearLayout (study 2)
Dec 1st
A LinearLayout is a GroupView that will Lay child View elements vertically or horizontally. Start a new project / Activity called HelloLinearLayout. Open the layout file. Make it like so: 1 <? xml version = "1.0" encoding = "utf-8"?> <LinearLayout xmlns: android = "http://schemas.android.com/apk/res/android" android: orientation = "vertical" android: layout_width = "fill_parent" android: layout_height =
Android if they had to switch screen solution (reproduced)
Nov 29th
Original From: http://blog.sina.com.cn/s/blog_4ca975460100g5yj.html Android if they had to switch on the screen solution The time in the development of the game, some games are only horizontal screen play, so when placed in the erection of mobile phone, to keep the game screen is still horizontal screen. To achieve this requirement is very simple to configure
Android custom ContentProvider
Nov 28th
Custom ContentProvider —- The content provider is used to deal with data sources, while the content parser (ContentResolver) responsible for operating the specific content provider. The data source can be a file or database. More content resolver can simultaneously access the content provider because it is thread – safe. A URI can identify a resource,
