Android4.4 SystemUI分析之DessertCase

在SystemUI中有一個Activity可以顯示所有的Logo

這個Activity涉及到的圖標存放在SystemUI/res/drawable-nodpi目錄下

在這裡我自己寫了個小的測試程序，把相關的文件拿出來

DessertCase.java、DessertCaseDream.java、DessertCaseView.java，只要是在DessertCaseView這個View中動態改變圖標的位置

只要在測試程序中啟動DessertCase.java就可以了

Intent intent = new Intent(getApplicationContext(),
					DessertCase.class);
			startActivity(intent);

/*
 * Copyright (C) 2013 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.dzt.testapp.dessert;

import android.app.Activity;
import android.content.ComponentName;
import android.content.pm.PackageManager;
import android.util.Slog;

public class DessertCase extends Activity {
	DessertCaseView mView;

	@Override
	public void onStart() {
		super.onStart();

		PackageManager pm = getPackageManager();
		final ComponentName cn = new ComponentName(this, DessertCaseDream.class);
		if (pm.getComponentEnabledSetting(cn) != PackageManager.COMPONENT_ENABLED_STATE_ENABLED) {
			Slog.v("DessertCase", "ACHIEVEMENT UNLOCKED");
			pm.setComponentEnabledSetting(cn,
					PackageManager.COMPONENT_ENABLED_STATE_ENABLED,
					PackageManager.DONT_KILL_APP);
		}

		mView = new DessertCaseView(this);

		DessertCaseView.RescalingContainer container = new DessertCaseView.RescalingContainer(
				this);

		container.setView(mView);

		setContentView(container);
	}

	@Override
	public void onResume() {
		super.onResume();
		mView.postDelayed(new Runnable() {
			public void run() {
				mView.start();
			}
		}, 1000);
	}

	@Override
	public void onPause() {
		super.onPause();
		mView.stop();
	}
}

/*
 * Copyright (C) 2013 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.dzt.testapp.dessert;

import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.animation.AnimatorSet;
import android.animation.ObjectAnimator;
import android.content.Context;
import android.content.res.Resources;
import android.graphics.*;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.os.Handler;
import android.util.AttributeSet;
import android.util.Log;
import android.util.SparseArray;
import android.view.View;
import android.view.animation.AccelerateInterpolator;
import android.view.animation.AnticipateOvershootInterpolator;
import android.view.animation.DecelerateInterpolator;
import android.widget.FrameLayout;
import android.widget.ImageView;

import java.util.HashSet;
import java.util.Set;



import com.dzt.testapp.R;

public class DessertCaseView extends FrameLayout {
    private static final String TAG = DessertCaseView.class.getSimpleName();

    private static final boolean DEBUG = false;

    static final int START_DELAY = 5000;
    static final int DELAY = 2000;
    static final int DURATION = 500;

    private static final int TAG_POS = 0x2000001;
    private static final int TAG_SPAN = 0x2000002;

    private static final int[] PASTRIES = {
            R.drawable.dessert_kitkat,      // used with permission
            R.drawable.dessert_android,     // thx irina
    };

    private static final int[] RARE_PASTRIES = {
            R.drawable.dessert_cupcake,     // 2009
            R.drawable.dessert_donut,       // 2009
            R.drawable.dessert_eclair,      // 2009
            R.drawable.dessert_froyo,       // 2010
            R.drawable.dessert_gingerbread, // 2010
            R.drawable.dessert_honeycomb,   // 2011
            R.drawable.dessert_ics,         // 2011
            R.drawable.dessert_jellybean,   // 2012
    };

    private static final int[] XRARE_PASTRIES = {
            R.drawable.dessert_petitfour,   // the original and still delicious

            R.drawable.dessert_donutburger, // remember kids, this was long before cronuts

            R.drawable.dessert_flan,        //     sholes final approach
                                            //     landing gear punted to flan
                                            //     runway foam glistens
                                            //         -- mcleron

            R.drawable.dessert_keylimepie,  // from an alternative timeline
    };
    private static final int[] XXRARE_PASTRIES = {
            R.drawable.dessert_zombiegingerbread, // thx hackbod
            R.drawable.dessert_dandroid,    // thx morrildl
            R.drawable.dessert_jandycane,   // thx nes
    };

    private static final int NUM_PASTRIES = PASTRIES.length + RARE_PASTRIES.length
            + XRARE_PASTRIES.length + XXRARE_PASTRIES.length;

    private SparseArray mDrawables = new SparseArray(NUM_PASTRIES);

    private static final float[] MASK = {
            0f,  0f,  0f,  0f, 255f,
            0f,  0f,  0f,  0f, 255f,
            0f,  0f,  0f,  0f, 255f,
            1f,  0f,  0f,  0f, 0f
    };

    private static final float[] ALPHA_MASK = {
            0f,  0f,  0f,  0f, 255f,
            0f,  0f,  0f,  0f, 255f,
            0f,  0f,  0f,  0f, 255f,
            0f,  0f,  0f,  1f, 0f
    };

    private static final float[] WHITE_MASK = {
            0f,  0f,  0f,  0f, 255f,
            0f,  0f,  0f,  0f, 255f,
            0f,  0f,  0f,  0f, 255f,
            -1f,  0f,  0f,  0f, 255f
    };

    public static final float SCALE = 0.25f; // natural display size will be SCALE*mCellSize

    private static final float PROB_2X = 0.33f;
    private static final float PROB_3X = 0.1f;
    private static final float PROB_4X = 0.01f;

    private boolean mStarted;

    private int mCellSize;
    private int mWidth, mHeight;
    private int mRows, mColumns;
    private View[] mCells;

    private final Set mFreeList = new HashSet();

    private final Handler mHandler = new Handler();

    private final Runnable mJuggle = new Runnable() {
        @Override
        public void run() {
            final int N = getChildCount();

            final int K = 1; //irand(1,3);
            for (int i=0; i T pick(T[] a) {
        return a[(int)(Math.random()*a.length)];
    }

     T pick(SparseArray sa) {
        return sa.valueAt((int)(Math.random()*sa.size()));
    }

    float[] hsv = new float[] { 0, 1f, .85f };
    int random_color() {
//        return 0xFF000000 | (int) (Math.random() * (float) 0xFFFFFF); // totally random
        final int COLORS = 12;
        hsv[0] = irand(0,COLORS) * (360f/COLORS);
        return Color.HSVToColor(hsv);
    }

    @Override
    protected synchronized void onSizeChanged (int w, int h, int oldw, int oldh) {
        super.onSizeChanged(w, h, oldw, oldh);
        if (mWidth == w && mHeight == h) return;

        final boolean wasStarted = mStarted;
        if (wasStarted) {
            stop();
        }

        mWidth = w;
        mHeight = h;

        mCells = null;
        removeAllViewsInLayout();
        mFreeList.clear();

        mRows = mHeight / mCellSize;
        mColumns = mWidth / mCellSize;

        mCells = new View[mRows * mColumns];

        if (DEBUG) Log.v(TAG, String.format("New dimensions: %dx%d", mColumns, mRows));

        setScaleX(SCALE);
        setScaleY(SCALE);
        setTranslationX(0.5f * (mWidth - mCellSize * mColumns) * SCALE);
        setTranslationY(0.5f * (mHeight - mCellSize * mRows) * SCALE);

        for (int j=0; j 0) {
                final float s = (Integer) v.getTag(TAG_SPAN);
                v.setScaleX(0.5f * s);
                v.setScaleY(0.5f * s);
                v.setAlpha(0f);
                v.animate().withLayer().scaleX(s).scaleY(s).alpha(1f).setDuration(animationLen);
            }
        }
    }

    public void place(View v, boolean animate) {
        place(v, new Point(irand(0, mColumns), irand(0, mRows)), animate);
    }

    // we don't have .withLayer() on general Animators
    private final Animator.AnimatorListener makeHardwareLayerListener(final View v) {
        return new AnimatorListenerAdapter() {
            @Override
            public void onAnimationStart(Animator animator) {
                /// M: [ALPS01271500] Check if this view is currently attached to a window.
                if (!v.isAttachedToWindow()) return;

                v.setLayerType(View.LAYER_TYPE_HARDWARE, null);
                v.buildLayer();
            }
            @Override
            public void onAnimationEnd(Animator animator) {
                /// M: [ALPS01271500] Check if this view is currently attached to a window.
                if (!v.isAttachedToWindow()) return;

                v.setLayerType(View.LAYER_TYPE_NONE, null);
            }
        };
    }

    private final HashSet tmpSet = new HashSet();
    public synchronized void place(View v, Point pt, boolean animate) {
        final int i = pt.x;
        final int j = pt.y;
        final float rnd = frand();
        if (v.getTag(TAG_POS) != null) {
            for (final Point oc : getOccupied(v)) {
                mFreeList.add(oc);
                mCells[oc.y*mColumns + oc.x] = null;
            }
        }
        int scale = 1;
        if (rnd < PROB_4X) {
            if (!(i >= mColumns-3 || j >= mRows-3)) {
                scale = 4;
            }
        } else if (rnd < PROB_3X) {
            if (!(i >= mColumns-2 || j >= mRows-2)) {
                scale = 3;
            }
        } else if (rnd < PROB_2X) {
            if (!(i == mColumns-1 || j == mRows-1)) {
                scale = 2;
            }
        }

        v.setTag(TAG_POS, pt);
        v.setTag(TAG_SPAN, scale);

        tmpSet.clear();

        final Point[] occupied = getOccupied(v);
        for (final Point oc : occupied) {
            final View squatter = mCells[oc.y*mColumns + oc.x];
            if (squatter != null) {
                tmpSet.add(squatter);
            }
        }

        for (final View squatter : tmpSet) {
            for (final Point sq : getOccupied(squatter)) {
                mFreeList.add(sq);
                mCells[sq.y*mColumns + sq.x] = null;
            }
            if (squatter != v) {
                squatter.setTag(TAG_POS, null);
                if (animate) {
                    squatter.animate().withLayer()
                            .scaleX(0.5f).scaleY(0.5f).alpha(0)
                            .setDuration(DURATION)
                            .setInterpolator(new AccelerateInterpolator())
                            .setListener(new Animator.AnimatorListener() {
                                public void onAnimationStart(Animator animator) { }
                                public void onAnimationEnd(Animator animator) {
                                    removeView(squatter);
                                }
                                public void onAnimationCancel(Animator animator) { }
                                public void onAnimationRepeat(Animator animator) { }
                            })
                            .start();
                } else {
                    removeView(squatter);
                }
            }
        }

        for (final Point oc : occupied) {
            mCells[oc.y*mColumns + oc.x] = v;
            mFreeList.remove(oc);
        }

        final float rot = (float)irand(0, 4) * 90f;

        if (animate) {
            v.bringToFront();

            AnimatorSet set1 = new AnimatorSet();
            set1.playTogether(
                    ObjectAnimator.ofFloat(v, View.SCALE_X, (float) scale),
                    ObjectAnimator.ofFloat(v, View.SCALE_Y, (float) scale)
            );
            set1.setInterpolator(new AnticipateOvershootInterpolator());
            set1.setDuration(DURATION);

            AnimatorSet set2 = new AnimatorSet();
            set2.playTogether(
                    ObjectAnimator.ofFloat(v, View.ROTATION, rot),
                    ObjectAnimator.ofFloat(v, View.X, i* mCellSize + (scale-1) * mCellSize /2),
                    ObjectAnimator.ofFloat(v, View.Y, j* mCellSize + (scale-1) * mCellSize /2)
            );
            set2.setInterpolator(new DecelerateInterpolator());
            set2.setDuration(DURATION);

            set1.addListener(makeHardwareLayerListener(v));

            set1.start();
            set2.start();
        } else {
            v.setX(i * mCellSize + (scale-1) * mCellSize /2);
            v.setY(j * mCellSize + (scale-1) * mCellSize /2);
            v.setScaleX((float) scale);
            v.setScaleY((float) scale);
            v.setRotation(rot);
        }
    }

    private Point[] getOccupied(View v) {
        final int scale = (Integer) v.getTag(TAG_SPAN);
        final Point pt = (Point)v.getTag(TAG_POS);
        if (pt == null || scale == 0) return new Point[0];

        final Point[] result = new Point[scale * scale];
        int p=0;
        for (int i=0; i在Activity onResume時會創建線程調用
 
 
public void start() {
        if (!mStarted) {
            mStarted = true;
            fillFreeList(DURATION * 4);
        }
        mHandler.postDelayed(mJuggle, START_DELAY);
    }
同時也會創建一個線程循環調用動畫播放
 
 
private final Runnable mJuggle = new Runnable() {
        @Override
        public void run() {
            final int N = getChildCount();

            final int K = 1; //irand(1,3);
            for (int i=0; i