其它一些不常用的工具方法OtherHelper

来源：互联网发布：java面试宝典软件编辑：程序博客网时间：2024/06/04 18:50
OtherHelper

打开微信、直接分享到微信、随机颜色、判断应用是否在后台等
import java.util.List;import java.util.Random;import android.app.Activity;import android.app.ActivityManager;import android.app.ActivityManager.RunningAppProcessInfo;import android.app.ActivityManager.RunningTaskInfo;import android.content.ComponentName;import android.content.Context;import android.content.Intent;import android.graphics.drawable.Drawable;import android.net.Uri;import android.text.Html;import android.widget.TextView;public class OtherHelper {    private OtherHelper util;    public OtherHelper getInstance() {        if (util == null) {            util = new OtherHelper();        }        return util;    }    private OtherHelper() {        super();    }    /**     * 打开微信     *      * @param context     * @param url     * @return     */    public boolean openWeChat(Context context, String url) {        if (PhoneHelper.getInstance().isInstall("com.tencent.mm")) {            try {                Intent localIntent = new Intent("android.intent.action.VIEW");                localIntent.setData(Uri.parse(url));                localIntent.setPackage("com.tencent.mm");                context.startActivity(localIntent);                if (context instanceof Activity)                    ((Activity) context).overridePendingTransition(                            android.R.anim.slide_in_left,                            android.R.anim.slide_out_right);                return true;            } catch (Exception e) {                e.printStackTrace();                return false;            }        }        return false;    }    /**     * 直接分享到微信     *      * @param context     * @param text     * @param subject     * @param title     * @param isFriend     *            是分享到好友还是朋友圈     */    public void shareToWeChat(Context context, String text, String subject,            String title, boolean isFriend) {        Intent intent = new Intent();        String str = "";        if (isFriend) {            str = "com.tencent.mm.ui.tools.ShareImgUI";        } else {            str = "com.tencent.mm.ui.tools.ShareToTimeLineUI";        }        ComponentName comp = new ComponentName("com.tencent.mm", str);        intent.setComponent(comp);        intent.setAction("android.intent.action.SEND");        intent.setType("text/*");        intent.putExtra(Intent.EXTRA_TEXT, text);        intent.putExtra(Intent.EXTRA_SUBJECT, subject);        intent.putExtra(Intent.EXTRA_TITLE, title);        // intent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(file));        context.startActivity(intent);    }    /**     * 得到随机颜色     *      * @return     */    public String getRandomColor() {        String r, g, b;        Random random = new Random();        r = Integer.toHexString(random.nextInt(256)).toUpperCase();        g = Integer.toHexString(random.nextInt(256)).toUpperCase();        b = Integer.toHexString(random.nextInt(256)).toUpperCase();        r = r.length() == 1 ? "0" + r : r;        g = g.length() == 1 ? "0" + g : g;        b = b.length() == 1 ? "0" + b : b;        return "#" + r + g + b;    }    /**     * 在TextView中插入图片     *      * @param context     * @param tv     * @param rid     * @param size     */    public void textViewInImag(final Context context, TextView tv, int rid,            final int size) {        String imgStr = "<img src=\"" + rid + "\"/>";        Html.ImageGetter imageGetter = new Html.ImageGetter() {            public Drawable getDrawable(String arg0) {                int id = Integer.parseInt(arg0);                Drawable draw = context.getResources().getDrawable(id);                draw.setBounds(0, 0, size, size);                return draw;            }        };        tv.append(Html.fromHtml(imgStr, imageGetter, null));    }    /**     * 当前应用是否在后台运行     *      * @param context     * @return     */    public boolean isAppRunBackground(Context context) {        ActivityManager activityManager = (ActivityManager) context                .getSystemService(Context.ACTIVITY_SERVICE);        List<RunningAppProcessInfo> appProcesses = activityManager                .getRunningAppProcesses();        for (RunningAppProcessInfo appProcess : appProcesses) {            if (appProcess.processName.equals(context.getPackageName())) {                if (appProcess.importance == RunningAppProcessInfo.IMPORTANCE_BACKGROUND) {                    return true;                } else {                    return false;                }            }        }        return false;    }    /**     * 当前应用是否在后台运行 需要权限<uses-permission     * android:name="android.permission.GET_TASKS" />     *      * @param context     * @return     */    public boolean isAppRunBackGround(final Context context) {        ActivityManager am = (ActivityManager) context                .getSystemService(Context.ACTIVITY_SERVICE);        List<RunningTaskInfo> tasks = am.getRunningTasks(1);        if (!tasks.isEmpty()) {            ComponentName topActivity = tasks.get(0).topActivity;            if (!topActivity.getPackageName().equals(context.getPackageName())) {                return true;            }        }        return false;    }    /**     * 后台服务是否在运行     *      * @param context     * @param cl     * @return     */    public boolean isServiceRunning(Context context, String serName) {        boolean isRunning = false;        ActivityManager activityManager = (ActivityManager) context                .getSystemService(Context.ACTIVITY_SERVICE);        List<ActivityManager.RunningServiceInfo> serviceList = activityManager                .getRunningServices(Integer.MAX_VALUE);        if (serviceList == null || serviceList.size() == 0) {            return false;        }        for (int i = 0; i < serviceList.size(); i++) {            if (serviceList.get(i).service.getClassName().equals(serName)) {                isRunning = true;                break;            }        }        return isRunning;    }    /**     * activity是否在运行     *      * @param context     * @param className     * @return     */    public boolean isActivityRunning(Context context, String className) {        ActivityManager activityManager = (ActivityManager) context                .getSystemService(Context.ACTIVITY_SERVICE);        List<ActivityManager.RunningTaskInfo> appList = activityManager                .getRunningTasks(1000);        for (ActivityManager.RunningTaskInfo running : appList) {            if (className.equals(running.baseActivity.getClassName())) {                return true;            }        }        return false;    }    /**     * 最近是否运行过App     * @param context     * @param packageName     * @return     */    public boolean isRecentAppRunning(Context context, String packageName) {        ActivityManager activityManager = (ActivityManager) context                .getSystemService(Context.ACTIVITY_SERVICE);        List<ActivityManager.RecentTaskInfo> appList = activityManager                .getRecentTasks(100, 1);        for (ActivityManager.RecentTaskInfo running : appList) {            if (running.origActivity.getPackageName().equals(packageName)) {                return true;            }        }        return false;    }}
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