Android 之 BaseActivity1

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1.取得手机屏幕大小DisplayMetrics

        // 取得手机屏幕大小        DisplayMetrics displayMetrics = new DisplayMetrics();        getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);        mScreenDensity = displayMetrics.density;        mScreenHeight = displayMetrics.heightPixels;        mScreenWidth = displayMetrics.widthPixels;

2.自定义工具类StatusBarCompat

package com.huading.myvolley.widget;import android.annotation.TargetApi;import android.app.Activity;import android.content.Context;import android.os.Build;import android.support.v4.content.ContextCompat;import android.view.View;import android.view.ViewGroup;import com.huading.myvolley.R;/** * Translucent Bars Utils * * @author LHZ * @date 16/8/8. */public class StatusBarCompat {    private static final int INVALID_VAL = -1;    //Get alpha color    static int calculateStatusBarColor(int color, int alpha) {        float a = 1 - alpha / 255f;        int red = color >> 16 & 0xff;        int green = color >> 8 & 0xff;        int blue = color & 0xff;        red = (int) (red * a + 0.5);        green = (int) (green * a + 0.5);        blue = (int) (blue * a + 0.5);        return 0xff << 24 | red << 16 | green << 8 | blue;    }    @TargetApi(Build.VERSION_CODES.LOLLIPOP)    public static View compat(Activity activity, int statusColor) {        int color = ContextCompat.getColor(activity, R.color.colorPrimaryDark);        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {            if (statusColor != INVALID_VAL) {                color = statusColor;            }            activity.getWindow().setStatusBarColor(color);            return null;        }        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT                && Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {            ViewGroup contentView = (ViewGroup) activity.findViewById(android.R.id.content);            if (statusColor != INVALID_VAL) {                color = statusColor;            }            View statusBarView = contentView.getChildAt(0);            if (statusBarView != null && statusBarView.getMeasuredHeight() == getStatusBarHeight(activity)) {                statusBarView.setBackgroundColor(color);                return statusBarView;            }            statusBarView = new View(activity);            ViewGroup.LayoutParams lp = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,                    getStatusBarHeight(activity));            statusBarView.setBackgroundColor(color);            contentView.addView(statusBarView, lp);            return statusBarView;        }        return null;    }    public static void compat(Activity activity) {        compat(activity, INVALID_VAL);    }    // 获取状态栏高度    public static int getStatusBarHeight(Context context) {        int result = 0;        int resourceId = context.getResources().getIdentifier("status_bar_height", "dimen", "android");        if (resourceId > 0) {            result = context.getResources().getDimensionPixelSize(resourceId);        }        return result;    }}

3.全透明状态栏

    // 全透明状态栏    protected void transparent19and20() {        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {            //透明状态栏            getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);            //透明底部导航栏            getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);        }    }

4.兼容4.4

新建values-v19

<resources>    <style name="AppTheme" parent="AppTheme.Base">        <item name="android:windowTranslucentStatus">true</item>    </style></resources>

5.颜色值

<?xml version="1.0" encoding="utf-8"?><resources>    <color name="colorPrimary">#FF03A9F4</color>    <color name="colorPrimaryDark">#FF0288D1</color>    <color name="colorAccent">#FF4081</color>    <color name="transparent">#00000000</color> <!--透明 -->    <color name="white">#FFFFFF</color> <!--白色 -->    <color name="black">#000000</color> <!--黑色 -->    <color name="background">#F2F2F2</color> <!--背景色 -->    <color name="navigationColor">#F8F8F8</color> <!--状态导航栏背景色-->    <color name="dividerColor">#EEEEEE</color>    <!--二级分割线-->    <color name="divider">#DDDDDD</color>    <!--分割线-->    <color name="titleColor">#999999</color>    <!--导航文字-->    <color name="textColor">#333333</color>    <!--文字颜色-->    <color name="text">#666666</color>    <!--次文字-->    <color name="blueColor">#00AAFF</color>    <!--标准蓝-->    <color name="orangeColor">#FFAB19</color>    <!--标准橙-->    <color name="orange">#FB7E00</color>    <!--标准深橙-->    <color name="greenColor">#5ED125</color>    <!--标准绿-->    <color name="redColor">#FF4343</color>    <!--标准红-->    <color name="pinkColor">#DE1E7C</color>    <!--标准粉红--></resources>

6.标题栏

<?xml version="1.0" encoding="utf-8"?><!--  ~ Copyright (c) 2015 [1076559197@qq.com | tchen0707@gmail.com]  ~  ~ 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.  --><merge xmlns:android="http://schemas.android.com/apk/res/android"       xmlns:app="http://schemas.android.com/apk/res-auto"       android:layout_width="match_parent"       android:layout_height="wrap_content">    <android.support.v7.widget.Toolbar        android:id="@+id/common_toolbar"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:background="?attr/colorPrimary"        android:minHeight="?attr/actionBarSize"        app:popupTheme="@style/ThemeOverlay.AppCompat.Dark"        app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"/></merge>

7.加载进度条

工具类LoadingDialog

package com.huading.myvolley.widget;import android.app.Dialog;import android.content.Context;import android.view.Gravity;import android.view.animation.Animation;import android.widget.TextView;import com.huading.myvolley.R;public class LoadingDialog extends Dialog {    private static LoadingDialog loadingDialog = null;    public Animation animation;    public LoadingDialog(Context context) {        super(context);    }    public LoadingDialog(Context context, int theme) {        super(context, theme);    }    public static LoadingDialog createDialog(Context context) {        loadingDialog = new LoadingDialog(context, R.style.CustomProgressDialog);        loadingDialog.setContentView(R.layout.loading_dialog);        loadingDialog.getWindow().getAttributes().gravity = Gravity.CENTER;        return loadingDialog;    }    /**     * [Summary] setMessage 提示内容     *     * @param strMessage     * @return     */    public LoadingDialog setMessage(String strMessage) {        TextView tvMsg = (TextView) loadingDialog.findViewById(R.id.progressBar_text);        if (tvMsg != null) {            tvMsg.setText(strMessage);        }        return loadingDialog;    }}

进度条主题样式R.style.CustomProgressDialog

<resources>    <style name="AppTheme" parent="AppTheme.Base"></style>    <!-- Base application theme. -->    <style name="AppTheme.Base" parent="Theme.AppCompat.Light">        <!-- Customize your theme here. -->        <item name="colorPrimary">@color/colorPrimary</item> <!--标题栏-->        <item name="colorPrimaryDark">@color/colorPrimaryDark</item><!--状态栏-->        <item name="colorAccent">@color/colorAccent</item>        <!--隐藏ActionBar-->        <item name="windowActionBar">false</item>        <item name="windowNoTitle">true</item>    </style>    <!--进度条样式-->    <style name="CustomProgressDialog" parent="@android:style/Theme.Dialog">        <item name="android:windowFrame">@null</item>        <item name="android:windowIsFloating">true</item>        <item name="android:windowContentOverlay">@null</item>        <item name="android:windowIsTranslucent">false</item>        <item name="android:windowAnimationStyle">@android:style/Animation.Dialog</item>        <item name="android:windowSoftInputMode">stateUnspecified|adjustPan</item>        <item name="android:windowBackground">@android:color/transparent</item>        <item name="android:windowNoTitle">true</item>        <item name="android:backgroundDimEnabled">false</item>    </style>    </resources>

进度条布局R.layout.loading_dialog

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="120dp"    android:layout_height="120dp"    xmlns:app="http://schemas.android.com/apk/res-auto"    android:alpha="0.8"    android:background="@android:color/transparent"    android:gravity="center"    android:orientation="vertical">    <com.huading.baselhz.widget.load.CircleLoadingView        android:id="@+id/progressBar"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        app:progress_color="@color/pinkColor" />    <TextView        android:id="@+id/progressBar_text"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_marginTop="5dp"        android:textColor="@color/pinkColor"        android:text="正在加载..." /></LinearLayout>

BaseProgressController

/** * Created by LHZ on 2016/4/29. */public abstract class BaseProgressController {    private View mTarget;    private List<Animator> mAnimators;    public void setTarget(View target) {        this.mTarget = target;    }    public View getTarget() {        return mTarget;    }    public int getWidth() {        return mTarget.getWidth();    }    public int getHeight() {        return mTarget.getHeight();    }    public void postInvalidate() {        mTarget.postInvalidate();    }    /**     * draw     *     * @param canvas canvas     * @param paint  paint     */    public abstract void draw(Canvas canvas, Paint paint);    public abstract List<Animator> createAnimation();    public void initAnimation() {        mAnimators = createAnimation();    }    public void setAnimationStatus(AnimStatus animStatus) {        if (mAnimators == null) {            return;        }        int count = mAnimators.size();        for (int i = 0; i < count; i++) {            Animator animator = mAnimators.get(i);            boolean isRunning = animator.isRunning();            switch (animStatus) {                case START:                    if (!isRunning) {                        animator.start();                    }                    break;                case END:                    if (isRunning) {                        animator.end();                    }                    break;                case CANCEL:                    if (isRunning) {                        animator.cancel();                    }                    break;            }        }    }    public enum AnimStatus {        START, END, CANCEL    }}

CircleProgress

/** *Created by LHZ on 2016/4/29. */public class CircleProgress extends BaseProgressController {    public static final float SCALE=1.0f;    public static final int ALPHA=255;    float[] scaleFloats=new float[]{SCALE,            SCALE,            SCALE,            SCALE,            SCALE,            SCALE,            SCALE,            SCALE};    int[] alphas=new int[]{ALPHA,            ALPHA,            ALPHA,            ALPHA,            ALPHA,            ALPHA,            ALPHA,            ALPHA};    @Override    public void draw(Canvas canvas, Paint paint) {        float radius=getWidth()/10;        for (int i = 0; i < 8; i++) {            canvas.save();            Point point=circleAt(getWidth(),getHeight(),getWidth()/2-radius,i*(Math.PI/4));            canvas.translate(point.x,point.y);            canvas.scale(scaleFloats[i],scaleFloats[i]);            paint.setAlpha(alphas[i]);            canvas.drawCircle(0,0,radius,paint);            canvas.restore();        }    }    /**     * 圆O的圆心为(a,b),半径为R,点A与到X轴的为角α.     *则点A的坐标为(a+R*cosα,b+R*sinα)     * @param width     * @param height     * @param radius     * @param angle     * @return     */    Point circleAt(int width,int height,float radius,double angle){        float x= (float) (width/2+radius*(Math.cos(angle)));        float y= (float) (height/2+radius*(Math.sin(angle)));        return new Point(x,y);    }    @Override    public List<Animator> createAnimation() {        List<Animator> animators=new ArrayList<>();        int[] delays= {0, 120, 240, 360, 480, 600, 720, 780, 840};        for (int i = 0; i < 8; i++) {            final int index=i;            ValueAnimator scaleAnim=ValueAnimator.ofFloat(1,0.4f,1);            scaleAnim.setDuration(1000);            scaleAnim.setRepeatCount(-1);            scaleAnim.setStartDelay(delays[i]);            scaleAnim.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {                @Override                public void onAnimationUpdate(ValueAnimator animation) {                    scaleFloats[index] = (float) animation.getAnimatedValue();                    postInvalidate();                }            });            scaleAnim.start();            ValueAnimator alphaAnim=ValueAnimator.ofInt(255, 77, 255);            alphaAnim.setDuration(1000);            alphaAnim.setRepeatCount(-1);            alphaAnim.setStartDelay(delays[i]);            alphaAnim.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {                @Override                public void onAnimationUpdate(ValueAnimator animation) {                    alphas[index] = (int) animation.getAnimatedValue();                    postInvalidate();                }            });            alphaAnim.start();            animators.add(scaleAnim);            animators.add(alphaAnim);        }        return animators;    }    final class Point{        public float x;        public float y;        public Point(float x, float y){            this.x=x;            this.y=y;        }    }}

新建attrs

    <!--进度条样式-->    <declare-styleable name="CircleLoadingView">        <attr name="progress_color" format="color" />    </declare-styleable>

8.activity管理栈

package com.huading.myvolley.utils;import android.app.Activity;import java.util.Stack;/** * Created by LHZ on 2017/3/1. * Activity管理栈 */public class AppManager {    private static Stack<Activity> activityStack;    public volatile static AppManager instance = new AppManager();    private AppManager() {        activityStack = new Stack<>();    }    /**     * 添加Activity到堆栈     */    public void addActivity(Activity activity) {        activityStack.add(activity);    }    /**     * 获取当前Activity（堆栈中最后一个压入的）     */    public Activity currentActivity() {        try {            Activity activity = activityStack.lastElement();            return activity;        } catch (Exception e) {            return null;        }    }    /**     * 返回到指定类名的activity     *     * @param cls     */    public void returnToActivity(Class<?> cls) {        while (activityStack.size() != 0)            if (activityStack.peek().getClass() == cls) {                break;            } else {                finishActivity(activityStack.peek());            }    }    /**     * 结束当前Activity（堆栈中最后一个压入的）     */    public void finishActivity() {        Activity activity = activityStack.lastElement();        finishActivity(activity);    }    /**     * 结束指定的Activity     */    public void finishActivity(Activity activity) {        if (activity != null) {            activityStack.remove(activity);            activity.finish();        }    }    /**     * 移除指定的Activity     */    public void removeActivity(Activity activity) {        if (activity != null) {            activityStack.remove(activity);        }    }    /**     * 结束指定类名的Activity     */    public void finishActivity(Class<?> cls) {        try {            for (Activity activity : activityStack) {                if (activity.getClass().equals(cls)) {                    finishActivity(activity);                }            }        } catch (Exception e) {            e.printStackTrace();        }    }    /**     * 结束所有Activity     */    public void finishAllActivity() {        for (int i = 0, size = activityStack.size(); i < size; i++) {            if (null != activityStack.get(i)) {                activityStack.get(i).finish();            }        }        activityStack.clear();    }    /**     * 是否已经打开指定的activity     *     * @param cls     * @return     */    public boolean isOpenActivity(Class<?> cls) {        if (activityStack != null) {            for (int i = 0, size = activityStack.size(); i < size; i++) {                if (cls == activityStack.peek().getClass()) {                    return true;                }            }        }        return false;    }}

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