Iterate HashMap getKey getValue Java Example

StringBuilder, res/raw folder, try catch finaly throws, BufferedReader, InputStream, openRawResource, getResources Android example

MainActivity.java

public class MainActivity extends Activity {
TextView txtV;
	Context cntx;
	
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        txtV = (TextView)findViewById(R.id.idLabel);
        cntx = this;
        try {
			StringBuilder strBuilder = myFunction(cntx);
			txtV.setText(strBuilder);
		} catch (IOException e) {
			e.printStackTrace();
		}

        
    }
    
    
    private StringBuilder myFunction(Context context) throws IOException {
        final Resources resources =  context.getResources();
        InputStream inputStream = resources.openRawResource(R.raw.my_file);
        BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
        StringBuilder strBuild = new StringBuilder();
        try {
            String line;
            while ((line = reader.readLine()) != null) {
            	strBuild.append(line);
            }
        } finally {
            reader.close();
        }
       return strBuild; 
       
    }
}

How to change the image dynamically in ImageView and button setOnClickListener Android sample.


Main.java

ipackage cz.okhelp.my_game;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;


public class Main extends Activity {
private ImageView hImageViewSemafor;
private Button hButton;
	
	@Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        hImageViewSemafor = (ImageView)findViewById(R.id.idImageViewSemafor);
        hButton = (Button) findViewById(R.id.idBtnChangeImage);
        hButton.setOnClickListener(mButtonChangeImageListener);
 
 
       
       
    }
	
    View.OnClickListener mButtonChangeImageListener = new OnClickListener() {
        public void onClick(View v) {
                // setImageResource will change image in ImageView
        	hImageViewSemafor.setImageResource(R.drawable.semafor_green);
            
        }
    };

}

main.xml
Put into res/drawable this pictures:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="//schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
<TextView  
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:text="@string/hello"
    />
    
       <ImageView
            android:src="@drawable/semafor_red"
            android:id="@+id/idImageViewSemafor"
            android:background="#66FFFFFF"
            android:adjustViewBounds="true"
            android:maxWidth="47dip"
            android:maxHeight="91dip"
            android:padding="10dip"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />    
    
</LinearLayout>

First cteate big icon 512x512 px formtat .PGN in graphics editor as Photoshop, Gimp, Piant.NET and save image.
If you create new project via Eclipse and choice your 512x512 image for ic_launcher.
Eclipse will make all icons from this image for new application very well.

If project is in workspace and only not visible in project explorer using this:

Click on some project in project explorer
Menu:
File
Import project
Existing Projects into Workspace

Android development example source code

// import
import android.speech.tts.TextToSpeech;
import android.speech.tts.TextToSpeech.OnInitListener;
// you have to add implementation
public class Main extends Activity implements TextToSpeech.OnInitListener {
        private int _langTTSavailable = -1; // set up in onInit method
        // declaration
	private TextToSpeech mTts;


	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
// assigned handle - initialisation
			mTts = new TextToSpeech(this,
			        (OnInitListener) this  // TextToSpeech.OnInitListener
			        );
}

   // Implements TextToSpeech.OnInitListener.
    public void onInit(int status) {
        if (status == TextToSpeech.SUCCESS) {
            // Set preferred language to US english.
             _langTTSavailable = mTts.setLanguage(Locale.US); // Locale.FRANCE etc.
            if (_langTTSavailable == TextToSpeech.LANG_MISSING_DATA ||
            	_langTTSavailable == TextToSpeech.LANG_NOT_SUPPORTED) {
             } else if ( _langTTSavailable >= 0) {
			 mTts.speak("Good morning",
            TextToSpeech.QUEUE_FLUSH,  // Drop all pending entries in the playback queue.
            null);
            }
        } else {
            // Initialization failed.
        }
    }

    @Override
    public void onDestroy() {
        // TTS shutdown!
        if (mTts != null) {
            mTts.stop();
            mTts.shutdown();
        }

        super.onDestroy();
    }

}

Get supported language:

private TextToSpeech mTts;
// public void onInit(int status){
int result;
String s;
result = mTts.setLanguage(	Locale.	CANADA	);	if (result == TextToSpeech.LANG_MISSING_DATA ||result == TextToSpeech.LANG_NOT_SUPPORTED) {s +=	 "	CANADA	 not supported<br>"	;}else{s+="	CANADA	 supported<br>";}
result = mTts.setLanguage(	Locale.	CANADA_FRENCH	);	if (result == TextToSpeech.LANG_MISSING_DATA ||result == TextToSpeech.LANG_NOT_SUPPORTED) {s +=	 "	CANADA_FRENCH	 not supported<br>"	;}else{s+="	CANADA_FRENCH	 supported<br>";}
result = mTts.setLanguage(	Locale.	CHINA	);	if (result == TextToSpeech.LANG_MISSING_DATA ||result == TextToSpeech.LANG_NOT_SUPPORTED) {s +=	 "	CHINA	 not supported<br>"	;}else{s+="	CHINA	 supported<br>";}
result = mTts.setLanguage(	Locale.	CHINESE	);	if (result == TextToSpeech.LANG_MISSING_DATA ||result == TextToSpeech.LANG_NOT_SUPPORTED) {s +=	 "	CHINESE	 not supported<br>"	;}else{s+="	CHINESE	 supported<br>";}
result = mTts.setLanguage(	Locale.	ENGLISH	);	if (result == TextToSpeech.LANG_MISSING_DATA ||result == TextToSpeech.LANG_NOT_SUPPORTED) {s +=	 "	ENGLISH	 not supported<br>"	;}else{s+="	ENGLISH	 supported<br>";}
result = mTts.setLanguage(	Locale.	FRANCE	);	if (result == TextToSpeech.LANG_MISSING_DATA ||result == TextToSpeech.LANG_NOT_SUPPORTED) {s +=	 "	FRANCE	 not supported<br>"	;}else{s+="	FRANCE	 supported<br>";}
result = mTts.setLanguage(	Locale.	FRENCH	);	if (result == TextToSpeech.LANG_MISSING_DATA ||result == TextToSpeech.LANG_NOT_SUPPORTED) {s +=	 "	FRENCH	 not supported<br>"	;}else{s+="	FRENCH	 supported<br>";}
result = mTts.setLanguage(	Locale.	GERMAN	);	if (result == TextToSpeech.LANG_MISSING_DATA ||result == TextToSpeech.LANG_NOT_SUPPORTED) {s +=	 "	GERMAN	 not supported<br>"	;}else{s+="	GERMAN	 supported<br>";}
result = mTts.setLanguage(	Locale.	GERMANY	);	if (result == TextToSpeech.LANG_MISSING_DATA ||result == TextToSpeech.LANG_NOT_SUPPORTED) {s +=	 "	GERMANY	 not supported<br>"	;}else{s+="	GERMANY	 supported<br>";}
result = mTts.setLanguage(	Locale.	ITALIAN	);	if (result == TextToSpeech.LANG_MISSING_DATA ||result == TextToSpeech.LANG_NOT_SUPPORTED) {s +=	 "	ITALIAN	 not supported<br>"	;}else{s+="	ITALIAN	 supported<br>";}
result = mTts.setLanguage(	Locale.	ITALY	);	if (result == TextToSpeech.LANG_MISSING_DATA ||result == TextToSpeech.LANG_NOT_SUPPORTED) {s +=	 "	ITALY	 not supported<br>"	;}else{s+="	ITALY	 supported<br>";}
result = mTts.setLanguage(	Locale.	JAPAN	);	if (result == TextToSpeech.LANG_MISSING_DATA ||result == TextToSpeech.LANG_NOT_SUPPORTED) {s +=	 "	JAPAN	 not supported<br>"	;}else{s+="	JAPAN	 supported<br>";}
result = mTts.setLanguage(	Locale.	JAPANESE	);	if (result == TextToSpeech.LANG_MISSING_DATA ||result == TextToSpeech.LANG_NOT_SUPPORTED) {s +=	 "	JAPANESE	 not supported<br>"	;}else{s+="	JAPANESE	 supported<br>";}
result = mTts.setLanguage(	Locale.	KOREA	);	if (result == TextToSpeech.LANG_MISSING_DATA ||result == TextToSpeech.LANG_NOT_SUPPORTED) {s +=	 "	KOREA	 not supported<br>"	;}else{s+="	KOREA	 supported<br>";}
result = mTts.setLanguage(	Locale.	KOREAN	);	if (result == TextToSpeech.LANG_MISSING_DATA ||result == TextToSpeech.LANG_NOT_SUPPORTED) {s +=	 "	KOREAN	 not supported<br>"	;}else{s+="	KOREAN	 supported<br>";}
result = mTts.setLanguage(	Locale.	PRC	);	if (result == TextToSpeech.LANG_MISSING_DATA ||result == TextToSpeech.LANG_NOT_SUPPORTED) {s +=	 "	PRC	 not supported<br>"	;}else{s+="	PRC	 supported<br>";}
result = mTts.setLanguage(	Locale.	ROOT	);	if (result == TextToSpeech.LANG_MISSING_DATA ||result == TextToSpeech.LANG_NOT_SUPPORTED) {s +=	 "	ROOT	 not supported<br>"	;}else{s+="	ROOT	 supported<br>";}
result = mTts.setLanguage(	Locale.	SIMPLIFIED_CHINESE	);	if (result == TextToSpeech.LANG_MISSING_DATA ||result == TextToSpeech.LANG_NOT_SUPPORTED) {s +=	 "	SIMPLIFIED_CHINESE	 not supported<br>"	;}else{s+="	SIMPLIFIED_CHINESE	 supported<br>";}
result = mTts.setLanguage(	Locale.	TAIWAN	);	if (result == TextToSpeech.LANG_MISSING_DATA ||result == TextToSpeech.LANG_NOT_SUPPORTED) {s +=	 "	TAIWAN	 not supported<br>"	;}else{s+="	TAIWAN	 supported<br>";}
result = mTts.setLanguage(	Locale.	TRADITIONAL_CHINESE	);	if (result == TextToSpeech.LANG_MISSING_DATA ||result == TextToSpeech.LANG_NOT_SUPPORTED) {s +=	 "	TRADITIONAL_CHINESE	 not supported<br>"	;}else{s+="	TRADITIONAL_CHINESE	 supported<br>";}
result = mTts.setLanguage(	Locale.	UK	);	if (result == TextToSpeech.LANG_MISSING_DATA ||result == TextToSpeech.LANG_NOT_SUPPORTED) {s +=	 "	UK	 not supported<br>"	;}else{s+="	UK	 supported<br>";}
result = mTts.setLanguage(	Locale.	US	);	if (result == TextToSpeech.LANG_MISSING_DATA ||result == TextToSpeech.LANG_NOT_SUPPORTED) {s +=	 "	US	 not supported<br>"	;}else{s+="	US	 supported<br>";}