AndroidUtils（二）Activity管理类

来源：互联网发布：mac上将pdf转换成txt 编辑：程序博客网时间：2024/06/05 17:31
看注解；
package com.example.bandofbrotherszts.androidphoneinfo;import android.app.Activity;import android.content.ComponentName;import android.content.Context;import android.content.Intent;import android.content.pm.PackageManager;import android.content.pm.ResolveInfo;import android.os.Build;import android.os.Bundle;import android.support.annotation.AnimRes;import android.support.annotation.NonNull;import android.support.v4.util.ArrayMap;import java.lang.reflect.Field;import java.util.HashMap;import java.util.List;import java.util.Map;import java.util.Stack;/** * 应用程序Activity管理类 */public class ActivityManager {    private static Stack activityStack;    private static ActivityManager instance = null;    private static Context context ;    private ActivityManager() {    }    /**     * 单例     */    public static ActivityManager getAppManager(Context mcontext) {        if (instance == null) {            instance = new ActivityManager();        }        context = mcontext.getApplicationContext();        return instance;    }    /**     * 添加Activity到堆栈     */    public void addActivity(Activity activity) {        if (activityStack == null) {            activityStack = new Stack<>();        }        activityStack.add(activity);    }    /**     * 获取当前Activity(堆栈种最后一个压入的)     */    public Activity currentActivity() {        Activity activity = activityStack.lastElement();        return activity;    }    /**     * 结束当前Activity     */    public void finishActivity() {        Activity activity = activityStack.lastElement();        if (activity != null) {            activityStack.remove(activity);            activity.finish();            activity = null;        }    }    /**     * 结束指定的Activity     */    public void finishActivity(Activity activity) {        if (activity != null) {            activityStack.remove(activity);            activity.finish();            activity = null;        }    }    /**     * 结束指定类名的Activity     */    public void finishActivity(Class cls) {        for (Activity activity : activityStack) {            if (activity.getClass().equals(cls)) {                finishActivity(activity);            }        }    }     /**     * 结束指定位置的Activity     */    public void finishPositionActivity(int index) {       Activity activity = activityStack.get(index);        finishActivity(activity);        }    /**     * 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();    }    /**     * 判断是否存在Activity     *     * @param packageName 包名     * @param className   activity全路径类名     * @return {@code true}: 是
{@code false}: 否     */    public  boolean isActivityExists(@NonNull final String packageName,                                           @NonNull final String className) {        Intent intent = new Intent();        intent.setClassName(packageName, className);        return !(context.getPackageManager().resolveActivity(intent, 0) == null ||                intent.resolveActivity(context.getPackageManager()) == null ||                context.getPackageManager().queryIntentActivities(intent, 0).size() == 0);    }    /**     * 启动Activity     *     * @param cls activity类     */    public  void startActivity(@NonNull final Class cls) {        startActivity(context, null, context.getPackageName(), cls.getName(), null);    }    /**     * 启动Activity     *     * @param cls     activity类     * @param options 跳转动画     */    public  void startActivity(@NonNull final Class cls,                                     @NonNull final Bundle options) {        startActivity(context, null, context.getPackageName(), cls.getName(), options);    }    /**     * 启动Activity     *     * @param activity activity     * @param cls      activity类     */    public  void startActivity(@NonNull final Activity activity,                                     @NonNull final Class cls) {        startActivity(activity, null, activity.getPackageName(), cls.getName(), null);    }    /**     * 启动Activity     *     * @param activity activity     * @param cls      activity类     * @param options  跳转动画     */    public  void startActivity(@NonNull final Activity activity,                                     @NonNull final Class cls,                                     @NonNull final Bundle options) {        startActivity(activity, null, activity.getPackageName(), cls.getName(), options);    }    /**     * 启动Activity     *     * @param activity  activity     * @param cls       activity类     * @param enterAnim 入场动画     * @param exitAnim  出场动画     */    public  void startActivity(@NonNull final Activity activity,                                     @NonNull final Class cls,                                     @AnimRes final int enterAnim,                                     @AnimRes final int exitAnim) {        startActivity(activity, null, activity.getPackageName(), cls.getName(), null);        activity.overridePendingTransition(enterAnim, exitAnim);    }    /**     * 启动Activity     *     * @param extras extras     * @param cls    activity类     */    public  void startActivity(@NonNull final Bundle extras,                                     @NonNull final Class cls) {              startActivity(context, extras, context.getPackageName(), cls.getName(), null);    }    /**     * 启动Activity     *     * @param extras  extras     * @param cls     activity类     * @param options 跳转动画     */    public  void startActivity(@NonNull final Bundle extras,                                     @NonNull final Class cls,                                     @NonNull final Bundle options) {        startActivity(context, extras, context.getPackageName(), cls.getName(), options);    }    /**     * 启动Activity     *     * @param extras   extras     * @param activity activity     * @param cls      activity类     */    public  void startActivity(@NonNull final Bundle extras,                                     @NonNull final Activity activity,                                     @NonNull final Class cls) {        startActivity(activity, extras, activity.getPackageName(), cls.getName(), null);    }    /**     * 启动Activity     *     * @param extras   extras     * @param activity activity     * @param cls      activity类     * @param options  跳转动画     */    public  void startActivity(@NonNull final Bundle extras,                                     @NonNull final Activity activity,                                     @NonNull final Class cls,                                     @NonNull final Bundle options) {        startActivity(activity, extras, activity.getPackageName(), cls.getName(), options);    }    /**     * 启动Activity     *     * @param extras    extras     * @param activity  activity     * @param cls       activity类     * @param enterAnim 入场动画     * @param exitAnim  出场动画     */    public  void startActivity(@NonNull final Bundle extras,                                     @NonNull final Activity activity,                                     @NonNull final Class cls,                                     @AnimRes final int enterAnim,                                     @AnimRes final int exitAnim) {        startActivity(activity, extras, activity.getPackageName(), cls.getName(), null);        activity.overridePendingTransition(enterAnim, exitAnim);    }    /**     * 启动Activity     *     * @param pkg 包名     * @param cls 全类名     */    public  void startActivity(@NonNull final String pkg,                                     @NonNull final String cls) {        startActivity(context, null, pkg, cls, null);    }    /**     * 启动Activity     *     * @param pkg     包名     * @param cls     全类名     * @param options 动画     */    public  void startActivity(@NonNull final String pkg,                                     @NonNull final String cls,                                     @NonNull final Bundle options) {        startActivity(context, null, pkg, cls, options);    }    /**     * 启动Activity     *     * @param activity activity     * @param pkg      包名     * @param cls      全类名     */    public  void startActivity(@NonNull final Activity activity,                                     @NonNull final String pkg,                                     @NonNull final String cls) {        startActivity(activity, null, pkg, cls, null);    }    /**     * 启动Activity     *     * @param activity activity     * @param pkg      包名     * @param cls      全类名     * @param options  动画     */    public  void startActivity(@NonNull final Activity activity,                                     @NonNull final String pkg,                                     @NonNull final String cls,                                     @NonNull final Bundle options) {        startActivity(activity, null, pkg, cls, options);    }    /**     * 启动Activity     *     * @param activity  activity     * @param pkg       包名     * @param cls       全类名     * @param enterAnim 入场动画     * @param exitAnim  出场动画     */    public  void startActivity(@NonNull final Activity activity,                                     @NonNull final String pkg,                                     @NonNull final String cls,                                     @AnimRes final int enterAnim,                                     @AnimRes final int exitAnim) {        startActivity(activity, null, pkg, cls, null);        activity.overridePendingTransition(enterAnim, exitAnim);    }    /**     * 启动Activity     *     * @param extras extras     * @param pkg    包名     * @param cls    全类名     */    public  void startActivity(@NonNull final Bundle extras,                                     @NonNull final String pkg,                                     @NonNull final String cls) {        startActivity(context, extras, pkg, cls, null);    }    /**     * 启动Activity     *     * @param extras  extras     * @param pkg     包名     * @param cls     全类名     * @param options 动画     */    public  void startActivity(@NonNull final Bundle extras,                                     @NonNull final String pkg,                                     @NonNull final String cls,                                     @NonNull final Bundle options) {        startActivity(context, extras, pkg, cls, options);    }    /**     * 启动Activity     *     * @param activity activity     * @param extras   extras     * @param pkg      包名     * @param cls      全类名     */    public  void startActivity(@NonNull final Bundle extras,                                     @NonNull final Activity activity,                                     @NonNull final String pkg,                                     @NonNull final String cls) {        startActivity(activity, extras, pkg, cls, null);    }    /**     * 启动Activity     *     * @param extras   extras     * @param activity activity     * @param pkg      包名     * @param cls      全类名     * @param options  动画     */    public  void startActivity(@NonNull final Bundle extras,                                     @NonNull final Activity activity,                                     @NonNull final String pkg,                                     @NonNull final String cls,                                     @NonNull final Bundle options) {        startActivity(activity, extras, pkg, cls, options);    }    /**     * 启动Activity     *     * @param extras    extras     * @param pkg       包名     * @param cls       全类名     * @param enterAnim 入场动画     * @param exitAnim  出场动画     */    public  void startActivity(@NonNull final Bundle extras,                                     @NonNull final Activity activity,                                     @NonNull final String pkg,                                     @NonNull final String cls,                                     @AnimRes final int enterAnim,                                     @AnimRes final int exitAnim) {        startActivity(activity, extras, pkg, cls, null);        activity.overridePendingTransition(enterAnim, exitAnim);    }    private  void startActivity(final Context context,                                      final Bundle extras,                                      final String pkg,                                      final String cls,                                      final Bundle options) {        Intent intent = new Intent(Intent.ACTION_VIEW);        if (extras != null) intent.putExtras(extras);        intent.setComponent(new ComponentName(pkg, cls));        if (!(context instanceof Activity)) {            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);        }        if (options != null && Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {            context.startActivity(intent, options);        } else {            context.startActivity(intent);        }    }    /**     * 退出应用程序     */    public void appExit(Context context) {        try {            finishAllActivity();//            ActivityManager manager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);//            manager.killBackgroundProcesses(context.getPackageName());            System.exit(0);            android.os.Process.killProcess(android.os.Process.myPid());        }catch (Exception e){            e.printStackTrace();        }    }    /**     * 获取栈顶Activity     *     * @return 栈顶Activity     */    public  Activity getTopActivity() {        try {            Class activityThreadClass = Class.forName("android.app.ActivityThread");            Object activityThread = activityThreadClass.getMethod("currentActivityThread").invoke(null);            Field activitiesField = activityThreadClass.getDeclaredField("mActivities");            activitiesField.setAccessible(true);            Map activities;            if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {                activities = (HashMap) activitiesField.get(activityThread);            } else {                activities = (ArrayMap) activitiesField.get(activityThread);            }            for (Object activityRecord : activities.values()) {                Class activityRecordClass = activityRecord.getClass();                Field pausedField = activityRecordClass.getDeclaredField("paused");                pausedField.setAccessible(true);                if (!pausedField.getBoolean(activityRecord)) {                    Field activityField = activityRecordClass.getDeclaredField("activity");                    activityField.setAccessible(true);                    return (Activity) activityField.get(activityRecord);                }            }        } catch (Exception e) {            e.printStackTrace();        }        return null;    }    /**     * 获取launcher activity     *     * @param packageName 包名     * @param context 上下文     * @return launcher activity     */    public  String getLauncherActivity( Context context, String packageName) {        Intent intent = new Intent(Intent.ACTION_MAIN, null);        intent.addCategory(Intent.CATEGORY_LAUNCHER);        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);        PackageManager pm = context.getPackageManager();        List info = pm.queryIntentActivities(intent, 0);        for (ResolveInfo aInfo : info) {            if (aInfo.activityInfo.packageName.equals(packageName)) {                return aInfo.activityInfo.name;            }        }        return "no " + packageName;    }}
点击下载源码
阅读全文
1 0