dominicthomas

ffmpeg -i inputfile.wav -ab 320k outputfile.mp3

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// only works if app has a launcher activity
Intent launchIntent = getPackageManager().getLaunchIntentForPackage("com.example.yourapp");
startActivity(launchIntent);

// works if we know the name of the main activity, even if not a launcher
Intent intent = new Intent(Intent.ACTION_MAIN);
intent.setClassName("com.example.yourapp", "com.example.yourapp.MainActivity");
startActivity(intent);

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public class MaxHeightLinearLayout extends LinearLayout {

    private int maxHeightDp;

    public MaxHeightLinearLayout(Context context) {
        super(context);
    }

    public MaxHeightLinearLayout(Context context, AttributeSet attrs) {
        super(context, attrs);

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public class JSONUtils {

    /**
     * Open a json file from raw and construct as class using Gson.
     *
     * @param resources
     * @param resId
     * @param classType
     * @param <T>
     * @return

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        fun matchChildViewOfAccountTile(accountName: String, targetViewId: Int, itemMatcher: Matcher<View>): Matcher<View> =
            object : BoundedMatcher<View, RecyclerView>(RecyclerView::class.java) {
                override fun describeTo(description: Description) {
                    description.appendText("Has view id $targetViewId and matches $itemMatcher for item with name $accountName")
                }

                public override fun matchesSafely(recyclerView: RecyclerView): Boolean {
                    val itemCount = recyclerView.adapter.itemCount
                    for (i in 0 until itemCount) {
                        val holder = recyclerView.findViewHolderForAdapterPosition(i)

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public int getDisplayContentHeight() {
    final WindowManager windowManager = getWindowManager();
    final Point size = new Point();
    int screenHeight = 0, actionBarHeight = 0;
    if (getActionBar() != null) {
        actionBarHeight = getActionBar().getHeight();
    }
    int contentTop = ((ViewGroup) findViewById(android.R.id.content)).getTop();
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
        windowManager.getDefaultDisplay().getSize(size);

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adb shell setprop gsm.sim.operator.iso-country gb

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<ripple xmlns:android="http://schemas.android.com/apk/res/android"
        android:color="@color/colorPrimary">
    <item>
        <layer-list>
            <item>
                <shape android:shape="rectangle">
                    <gradient
                            android:angle="90"
                            android:centerColor="#00ffffff"
                            android:endColor="#00ffffff"

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Here is a high level overview for what you need to do to get most of an Android environment setup and maintained.

Prerequisites (for Homebrew at a minimum, lots of other tools need these too):

• XCode is installed (via the App Store)
• XCode command line tools are installed (xcode-select --install will prompt up a dialog)
• Java

Install Homebrew:

ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)"

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final BottomNavigationView bottomNavigationView = findViewById(R.id.bottom_navigation_view);
bottomNavigationView.inflateMenu(R.menu.bottom_navigation_main);
bottomNavigationView.setItemBackgroundResource(R.color.colorPrimary);
bottomNavigationView.setItemTextColor(ContextCompat.getColorStateList(bottomNavigationView.getContext(), R.color.bottom_navigation_color_selector));
bottomNavigationView.setItemIconTintList(ContextCompat.getColorStateList(bottomNavigationView.getContext(), R.color.bottom_navigation_color_selector));
bottomNavigationView.setOnNavigationItemSelectedListener(...);