SD card SDcard get external storage directory Android

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Environment.getExternalStorageDirectory()+ File.separator


Boolean canWrite =	Environment.getExternalStorageDirectory().canWrite() ;
if(canWrite){
File f = new File(Environment.getExternalStorageDirectory()
                        + File.separator + "my_image.jpg")
f.createNewFile();
}else{

}

AndroidManifest.xml

    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />

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Další témata ....(Topics)

125

Get SensorManager PowerManager WindowManager Display Android example | get-sensormanager-powermanager-windowmanager-display-android-example


    private SensorManager mSensorManager;
    private PowerManager mPowerManager;
    private WindowManager mWindowManager;
    private Display mDisplay;

// onCreate
   @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

       // Get an instance of the SensorManager
        mSensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);

        // Get an instance of the PowerManager
        mPowerManager = (PowerManager) getSystemService(POWER_SERVICE);

        // Get an instance of the WindowManager
        mWindowManager = (WindowManager) getSystemService(WINDOW_SERVICE);
        mDisplay = mWindowManager.getDefaultDisplay();

        setContentView(R.layout.main); // main.xml or your xml file name

}

308

ADT Bundle 22.6.2 have memory leak. | adt-bundle-22-6-2-have-memory-leak

If I trying
android-sdk_r22.6.2-windows.zip
adt-bundle-windows-x86_64-20140321.zip
and open xml layout graphic editor and xml layout file
memory continues to grow to crashes Eclipse

https://developer.android.com/sdk/index.html

I have to install old version adt-bundle-windows-x86-20131030.zip
what working fine.
I had to delete .metadata folder in workspace if I want open old version ADT

279

Start Open New Activity Android Code | start-open-new-activity-android-code


      Intent i = new Intent(this, MyNextClass.class);
      startActivity(i);

292

toLowerCase Locale toUperCase Locale Java Android | tolowercase-locale-toupercase-locale-java-android


String s = "AbcČ";
String s2 = s.toLowerCase(new Locale("cs_CZ")); // Czech Republic
String s3 = s.toLowerCase(new Locale("de_DE")); // Germany

//
en_US
en_GB
ar_EG
be_BY
bg_BG
ca_ES
cs_CZ
da_DK
de_DE

246

Set Custom Font to View Android Example | set-custom-font-to-view-android-example

You have to put your font fonts/samplefont.ttf into assets/fonts folder in your project!


// set own custom font from assets
TextView txt = (TextView) findViewById(R.id.custom_font);
Typeface mFace = Typeface.createFromAsset(getContext().getAssets(),
                                             "fonts/samplefont.ttf");
    txt.setTypeface(mFace);

Editace: 2013-12-09 10:08:22
Počet článků v kategorii: 397
Url:sd-card-get-external-storage-directory-android

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