android 创建桌面快捷方式,4.0系统可用

1、判断是否存在快捷方式:

title = ? 查询条件指的是创建快捷方式时设置的label字符串(Intent.EXTRA_SHORTCUT_NAME

    private boolean hasAddShortCut() {
        boolean isInstallShortcut = false;

        final ContentResolver cr = this.getContentResolver();
        String AUTHORITY = "com.android.launcher2.settings";

        final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY
                + "/favorites?notify=true");
        Cursor c = cr.query(CONTENT_URI,
                new String[] { "title", "iconResource" }, "title=?",
                new String[] { getString(R.string.app_name) }, null);

        if (c != null && c.getCount() > 0) {
            isInstallShortcut = true;
        }
        return isInstallShortcut;
    }

2、创建快捷方式

    private void addShortCut(){

        Intent shortcut = new Intent("com.android.launcher.action.INSTALL_SHORTCUT");
        shortcut.putExtra(Intent.EXTRA_SHORTCUT_NAME, getResources().getString(R.string.app_name));
        //设置是否可重复创建
        shortcut.putExtra("duplicate", false);
        //设置显示的图标
        Parcelable icon = Intent.ShortcutIconResource.fromContext(this,R.mipmap.ic_launcher_mail);
        shortcut.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE,icon);

        //点击快捷方式发起的intent的定义
        Intent intent = new Intent(Intent.ACTION_MAIN);
        intent.setFlags(Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
        intent.addFlags(Intent.FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY);
        intent.addCategory(Intent.CATEGORY_LAUNCHER);
        //对于使用activity-alias控件的请用setClassName接口来设置启动的activity</span>
        //intent.setClass(MailActivityEmail.this, MailActivityEmail.class);
        intent.setClassName("com.kingsoft.email","com.kingsoft.email.activity.Welcome");
        shortcut.putExtra(Intent.EXTRA_SHORTCUT_INTENT, intent);

        this.sendBroadcast(shortcut);
    }




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