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Force Screen On - dont use WakeLock - use getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) - Android sample

FLAG_KEEP_SCREEN_ON saving energy. Protects the battery if a user closing applications using the Return button on device. The device will returned to user screen mode settings.

@Override
    protected void onCreate(Bundle icicle) {
        super.onCreate(icicle);
        //..........
        getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
    }

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How to install mount SD card for Eclipse Android Emulator | how-install-sd-card-on-android-eclipse-emulator


If you want download some *.apk file from internet and try on your emulator you get error than you have to install SD card. You have to closing Android emulator.
Mount Android emulator SD card instruction

  1. In Eclipse go in menu Window - Android SDK and Avg Manager

  2. Select Virtual devices

  3. Select AVD Name where you need install SD card

  4. Click on Edit button

  5. In open dialog go to SD card - Size: and write 500

  6. Press button Edit AVD

  7. Run AVD emulator


Image how install SD card on Android emulator in Eclipse.