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onSaveInstanceState() onRestoreInstanceState() basic Android example


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public class MyClass extends Activity {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
       }
	 String sMyText = "some text";
	 int nMyInt = 10;

 @Override
 protected void onSaveInstanceState(Bundle outState) {
     // Save away the original text, so we still have it if the activity
     // needs to be killed while paused.
     outState.putString("my_text", sMyText);
     outState.putInt("my_int", nMyInt);
     Toast.makeText(this, "onSaveInstanceState()", Toast.LENGTH_LONG).show();
Log.i("onSaveInstanceState", "onSaveInstanceState()");
}
 String sNewMyText = "";
 int nNewMyInt = 0;
 
 @Override
 protected void onRestoreInstanceState(Bundle savedInstanceState) {
     super.onRestoreInstanceState(savedInstanceState);
     // restore saved values
     sNewMyText = savedInstanceState.getString("my_text");
     nNewMyInt = savedInstanceState.getInt("my_int");
     Toast.makeText(this, "onRestoreInstanceState()", Toast.LENGTH_LONG).show();
     Log.i("onRestoreInstanceState", "onRestoreInstanceState()");
     
 }
}

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Problem in parsing the package Android 2.1 | problem-in-parsing-the-package-android-2-1


Eclipse.
If install on device signed with proguard *.apk package and try to reinstall it by only signed package get error in parsing the package.
Uninstall the first application with bigger size from device and try install signed package which has a smaller size. Delete from download list previous downloaded *.apk.
This problem occurs when that your downloaded apk file size is less than the
size of the original apk.
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How set rounded corners and own styles ActivityMy.java

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\res\drawable\back_button_answer.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="//schemas.android.com/apk/res/android" android:shape="rectangle" >
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List LinkedList Collections add sort find search Item, get searched item to string in Java example.

MainClass.java

import java.util.Collections;
import java.util.LinkedList;
import java.util.List;

public class MainClass {
	public static void main(String[] arg) {
		String[] arrayOfString = {"nothing", "Hello", "people"
				, "bye-bye", "hello", "world!", "End" };
		   
                   List<String> arrayList = new LinkedList<String>();
                  
                   for(String s: arrayOfString)
		     arrayList.add(s);

		    Collections.sort(arrayList);
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		      System.out.println(str);
		    
		    Object objMin = Collections.min(arrayList);
		    System.out.println("Min is: " + objMin);
		    
		    Object objMax = Collections.max(arrayList);
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		  }
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/*
End
Hello
bye-bye
hello
nothing
people
world!
Min is: End
Max is: world!
Index of people is: 5
Index 5 is: people
*/
214

LinkedMap HashMap Java | linkedmap-hashmap-java



Map<Float,String> linkedHashMap = new LinkedHashMap<Float, String>();

 linkedHashMap.put(14.f, "text");
 linkedHashMap.put(13.f, "text");
 linkedHashMap.put(10.f, "text");
 linkedHashMap.put(11.f, "text");
 linkedHashMap.put(2.f, "text");
 linkedHashMap.put(3.f, "text");
 linkedHashMap.put(1.f, "text");
 linkedHashMap.put(7.f, "text");
 linkedHashMap.put(23.f, "text");

	for (Entry<Float,String> entry : linkedHashMap.entrySet()) {
		System.out.println(entry.getKey());
	}
14.0
13.0
10.0
11.0
2.0
3.0
1.0
7.0
23.0

Map<Float,String> hashMap = new HashMap<Float, String>();

 hashMap.put(14.f, "text");
 hashMap.put(13.f, "text");
 hashMap.put(10.f, "text");
 hashMap.put(11.f, "text");
 hashMap.put(2.f, "text");
 hashMap.put(3.f, "text");
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 hashMap.put(7.f, "text");
 hashMap.put(23.f, "text");

 
 
	for (Entry<Float,String> entry : hashMap.entrySet()) {
		System.out.println(entry.getKey());
	}
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1.0
14.0
3.0
13.0
2.0
7.0
11.0
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Solution:

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Editace: 2011-10-08 15:38:52
Počet článků v kategorii: 397
Url:onsaveinstancestate-onrestoreinstancestate-basic-android-example

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