android.support.v4.hardware.display.DisplayManagerCompat.java Source code

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Here is the source code for android.support.v4.hardware.display.DisplayManagerCompat.java

Source

package android.support.v4.hardware.display;

import android.content.Context;
import android.os.Build.VERSION;
import android.view.Display;
import android.view.WindowManager;
import java.util.WeakHashMap;

public abstract class DisplayManagerCompat {
    public static final String DISPLAY_CATEGORY_PRESENTATION = "android.hardware.display.category.PRESENTATION";
    private static final WeakHashMap<Context, DisplayManagerCompat> sInstances;

    private static class JellybeanMr1Impl extends DisplayManagerCompat {
        private final Object mDisplayManagerObj;

        public JellybeanMr1Impl(Context context) {
            this.mDisplayManagerObj = DisplayManagerJellybeanMr1.getDisplayManager(context);
        }

        public Display getDisplay(int i) {
            return DisplayManagerJellybeanMr1.getDisplay(this.mDisplayManagerObj, i);
        }

        public Display[] getDisplays() {
            return DisplayManagerJellybeanMr1.getDisplays(this.mDisplayManagerObj);
        }

        public Display[] getDisplays(String str) {
            return DisplayManagerJellybeanMr1.getDisplays(this.mDisplayManagerObj, str);
        }
    }

    private static class LegacyImpl extends DisplayManagerCompat {
        private final WindowManager mWindowManager;

        public LegacyImpl(Context context) {
            this.mWindowManager = (WindowManager) context.getSystemService("window");
        }

        public Display getDisplay(int i) {
            Display defaultDisplay = this.mWindowManager.getDefaultDisplay();
            return defaultDisplay.getDisplayId() == i ? defaultDisplay : null;
        }

        public Display[] getDisplays() {
            return new Display[] { this.mWindowManager.getDefaultDisplay() };
        }

        public Display[] getDisplays(String str) {
            return str == null ? getDisplays() : new Display[0];
        }
    }

    public abstract Display getDisplay(int i);

    public abstract Display[] getDisplays();

    public abstract Display[] getDisplays(String str);

    static {
        sInstances = new WeakHashMap();
    }

    DisplayManagerCompat() {
    }

    public static DisplayManagerCompat getInstance(Context context) {
        DisplayManagerCompat displayManagerCompat;
        synchronized (sInstances) {
            displayManagerCompat = (DisplayManagerCompat) sInstances.get(context);
            if (displayManagerCompat == null) {
                if (VERSION.SDK_INT >= 17) {
                    displayManagerCompat = new JellybeanMr1Impl(context);
                } else {
                    displayManagerCompat = new LegacyImpl(context);
                }
                sInstances.put(context, displayManagerCompat);
            }
        }
        return displayManagerCompat;
    }
}